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fs/ocfs2/namei.c
59.9 KB
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/* -*- mode: c; c-basic-offset: 8; -*- * vim: noexpandtab sw=8 ts=8 sts=0: * * namei.c * * Create and rename file, directory, symlinks * * Copyright (C) 2002, 2004 Oracle. All rights reserved. * * Portions of this code from linux/fs/ext3/dir.c * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) * Laboratoire MASI - Institut Blaise pascal * Universite Pierre et Marie Curie (Paris VI) * * from * * linux/fs/minix/dir.c * * Copyright (C) 1991, 1992 Linux Torvalds * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 021110-1307, USA. */ #include <linux/fs.h> #include <linux/types.h> #include <linux/slab.h> #include <linux/highmem.h> |
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#include <linux/quotaops.h> |
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|
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#include <cluster/masklog.h> #include "ocfs2.h" #include "alloc.h" #include "dcache.h" #include "dir.h" #include "dlmglue.h" #include "extent_map.h" #include "file.h" #include "inode.h" #include "journal.h" #include "namei.h" #include "suballoc.h" |
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#include "super.h" |
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#include "symlink.h" #include "sysfile.h" #include "uptodate.h" |
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#include "xattr.h" |
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#include "acl.h" |
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#include "ocfs2_trace.h" |
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#include "buffer_head_io.h" |
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static int ocfs2_mknod_locked(struct ocfs2_super *osb, struct inode *dir, |
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struct inode *inode, |
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dev_t dev, struct buffer_head **new_fe_bh, struct buffer_head *parent_fe_bh, |
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handle_t *handle, |
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struct ocfs2_alloc_context *inode_ac); |
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static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, |
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struct inode **ret_orphan_dir, |
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u64 blkno, |
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char *name, |
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struct ocfs2_dir_lookup_result *lookup); |
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static int ocfs2_orphan_add(struct ocfs2_super *osb, |
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handle_t *handle, |
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struct inode *inode, |
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struct buffer_head *fe_bh, |
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char *name, |
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struct ocfs2_dir_lookup_result *lookup, |
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struct inode *orphan_dir_inode); |
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static int ocfs2_create_symlink_data(struct ocfs2_super *osb, |
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handle_t *handle, |
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struct inode *inode, const char *symname); |
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/* An orphan dir name is an 8 byte value, printed as a hex string */ #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64))) static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) { int status; u64 blkno; |
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struct inode *inode = NULL; struct dentry *ret; |
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struct ocfs2_inode_info *oi; |
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trace_ocfs2_lookup(dir, dentry, dentry->d_name.len, dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno, 0); |
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if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) { ret = ERR_PTR(-ENAMETOOLONG); goto bail; } |
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status = ocfs2_inode_lock_nested(dir, NULL, 0, OI_LS_PARENT); |
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if (status < 0) { if (status != -ENOENT) mlog_errno(status); ret = ERR_PTR(status); goto bail; } |
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status = ocfs2_lookup_ino_from_name(dir, dentry->d_name.name, dentry->d_name.len, &blkno); |
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if (status < 0) goto bail_add; |
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inode = ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0); |
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if (IS_ERR(inode)) { |
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ret = ERR_PTR(-EACCES); goto bail_unlock; } oi = OCFS2_I(inode); /* Clear any orphaned state... If we were able to look up the * inode from a directory, it certainly can't be orphaned. We * might have the bad state from a node which intended to * orphan this inode but crashed before it could commit the * unlink. */ spin_lock(&oi->ip_lock); oi->ip_flags &= ~OCFS2_INODE_MAYBE_ORPHANED; |
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spin_unlock(&oi->ip_lock); bail_add: |
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ret = d_splice_alias(inode, dentry); |
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if (inode) { /* * If d_splice_alias() finds a DCACHE_DISCONNECTED * dentry, it will d_move() it on top of ourse. The * return value will indicate this however, so in * those cases, we switch them around for the locking * code. * * NOTE: This dentry already has ->d_op set from * ocfs2_get_parent() and ocfs2_get_dentry() */ if (ret) dentry = ret; status = ocfs2_dentry_attach_lock(dentry, inode, |
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OCFS2_I(dir)->ip_blkno); |
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if (status) { mlog_errno(status); ret = ERR_PTR(status); goto bail_unlock; } |
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} else ocfs2_dentry_attach_gen(dentry); |
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|
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bail_unlock: /* Don't drop the cluster lock until *after* the d_add -- * unlink on another node will message us to remove that * dentry under this lock so otherwise we can race this with |
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* the downconvert thread and have a stale dentry. */ |
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ocfs2_inode_unlock(dir, 0); |
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bail: |
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|
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trace_ocfs2_lookup_ret(ret); |
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return ret; } |
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static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode) { struct inode *inode; inode = new_inode(dir->i_sb); if (!inode) { mlog(ML_ERROR, "new_inode failed! "); return NULL; } /* populate as many fields early on as possible - many of * these are used by the support functions here and in * callers. */ if (S_ISDIR(mode)) |
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set_nlink(inode, 2); |
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inode_init_owner(inode, dir, mode); |
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dquot_initialize(inode); |
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return inode; } |
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static int ocfs2_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) { int status = 0; struct buffer_head *parent_fe_bh = NULL; |
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handle_t *handle = NULL; |
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struct ocfs2_super *osb; struct ocfs2_dinode *dirfe; struct buffer_head *new_fe_bh = NULL; |
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struct inode *inode = NULL; struct ocfs2_alloc_context *inode_ac = NULL; struct ocfs2_alloc_context *data_ac = NULL; |
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struct ocfs2_alloc_context *meta_ac = NULL; |
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int want_clusters = 0; |
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int want_meta = 0; |
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int xattr_credits = 0; struct ocfs2_security_xattr_info si = { .enable = 1, }; |
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int did_quota_inode = 0; |
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struct ocfs2_dir_lookup_result lookup = { NULL, }; |
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sigset_t oldset; int did_block_signals = 0; |
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|
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trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno, (unsigned long)dev, mode); |
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|
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dquot_initialize(dir); |
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|
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/* get our super block */ osb = OCFS2_SB(dir->i_sb); |
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status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); |
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if (status < 0) { if (status != -ENOENT) mlog_errno(status); return status; } |
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if (S_ISDIR(mode) && (dir->i_nlink >= ocfs2_link_max(osb))) { |
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status = -EMLINK; goto leave; } |
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dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; |
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if (!ocfs2_read_links_count(dirfe)) { |
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/* can't make a file in a deleted directory. */ status = -ENOENT; goto leave; } status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, dentry->d_name.len); if (status) goto leave; /* get a spot inside the dir. */ status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, dentry->d_name.name, |
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dentry->d_name.len, &lookup); |
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if (status < 0) { mlog_errno(status); goto leave; } /* reserve an inode spot */ |
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status = ocfs2_reserve_new_inode(osb, &inode_ac); |
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if (status < 0) { if (status != -ENOSPC) mlog_errno(status); goto leave; } |
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inode = ocfs2_get_init_inode(dir, mode); if (!inode) { status = -ENOMEM; mlog_errno(status); goto leave; } |
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/* get security xattr */ |
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status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si); |
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if (status) { if (status == -EOPNOTSUPP) si.enable = 0; else { mlog_errno(status); goto leave; } } |
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/* calculate meta data/clusters for setting security and acl xattr */ status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode, |
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&si, &want_clusters, &xattr_credits, &want_meta); |
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if (status < 0) { mlog_errno(status); goto leave; |
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} |
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/* Reserve a cluster if creating an extent based directory. */ |
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if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb)) { |
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want_clusters += 1; |
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/* Dir indexing requires extra space as well */ |
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if (ocfs2_supports_indexed_dirs(osb)) |
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want_meta++; |
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} status = ocfs2_reserve_new_metadata_blocks(osb, want_meta, &meta_ac); if (status < 0) { if (status != -ENOSPC) mlog_errno(status); goto leave; } |
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status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); if (status < 0) { if (status != -ENOSPC) mlog_errno(status); goto leave; } |
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handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, S_ISDIR(mode), xattr_credits)); |
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if (IS_ERR(handle)) { status = PTR_ERR(handle); handle = NULL; mlog_errno(status); goto leave; } |
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/* Starting to change things, restart is no longer possible. */ ocfs2_block_signals(&oldset); did_block_signals = 1; |
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status = dquot_alloc_inode(inode); if (status) |
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goto leave; |
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did_quota_inode = 1; |
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/* do the real work now. */ |
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status = ocfs2_mknod_locked(osb, dir, inode, dev, |
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&new_fe_bh, parent_fe_bh, handle, |
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inode_ac); |
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if (status < 0) { mlog_errno(status); goto leave; } if (S_ISDIR(mode)) { status = ocfs2_fill_new_dir(osb, handle, dir, inode, |
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new_fe_bh, data_ac, meta_ac); |
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if (status < 0) { mlog_errno(status); goto leave; } |
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status = ocfs2_journal_access_di(handle, INODE_CACHE(dir), parent_fe_bh, |
13723d00e ocfs2: Use metada... |
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OCFS2_JOURNAL_ACCESS_WRITE); |
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if (status < 0) { mlog_errno(status); goto leave; } |
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ocfs2_add_links_count(dirfe, 1); |
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ocfs2_journal_dirty(handle, parent_fe_bh); |
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inc_nlink(dir); |
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} |
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status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh, |
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meta_ac, data_ac); |
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if (status < 0) { mlog_errno(status); goto leave; } |
534eadddc ocfs2: add ocfs2_... |
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if (si.enable) { status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, |
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meta_ac, data_ac); |
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if (status < 0) { mlog_errno(status); goto leave; } } |
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/* * Do this before adding the entry to the directory. We add * also set d_op after success so that ->d_iput() will cleanup * the dentry lock even if ocfs2_add_entry() fails below. */ status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); if (status) { |
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mlog_errno(status); goto leave; } |
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status = ocfs2_add_entry(handle, dentry, inode, OCFS2_I(inode)->ip_blkno, parent_fe_bh, &lookup); if (status < 0) { |
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mlog_errno(status); goto leave; } |
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insert_inode_hash(inode); |
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d_instantiate(dentry, inode); status = 0; leave: |
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if (status < 0 && did_quota_inode) |
63936ddaa dquot: cleanup in... |
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dquot_free_inode(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
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if (handle) |
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ocfs2_commit_trans(osb, handle); |
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|
e63aecb65 ocfs2: Rename ocf... |
399 |
ocfs2_inode_unlock(dir, 1); |
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if (did_block_signals) ocfs2_unblock_signals(&oldset); |
e3a821385 ocfs2: don't pass... |
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|
a81cb88b6 ocfs2: Don't chec... |
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brelse(new_fe_bh); |
a81cb88b6 ocfs2: Don't chec... |
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brelse(parent_fe_bh); |
534eadddc ocfs2: add ocfs2_... |
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kfree(si.name); kfree(si.value); |
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|
4a12ca3a0 ocfs2: Introduce ... |
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ocfs2_free_dir_lookup_result(&lookup); |
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if (inode_ac) ocfs2_free_alloc_context(inode_ac); if (data_ac) ocfs2_free_alloc_context(data_ac); |
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if (meta_ac) ocfs2_free_alloc_context(meta_ac); |
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|
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/* * We should call iput after the i_mutex of the bitmap been * unlocked in ocfs2_free_alloc_context, or the * ocfs2_delete_inode will mutex_lock again. */ if ((status < 0) && inode) { OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; clear_nlink(inode); iput(inode); } |
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if (status) mlog_errno(status); |
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return status; } |
021960cab ocfs2: split out ... |
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static int __ocfs2_mknod_locked(struct inode *dir, struct inode *inode, dev_t dev, struct buffer_head **new_fe_bh, struct buffer_head *parent_fe_bh, handle_t *handle, struct ocfs2_alloc_context *inode_ac, u64 fe_blkno, u64 suballoc_loc, u16 suballoc_bit) |
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{ int status = 0; |
021960cab ocfs2: split out ... |
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struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
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struct ocfs2_dinode *fe = NULL; struct ocfs2_extent_list *fel; |
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u16 feat; |
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|
ccd979bdb [PATCH] OCFS2: Th... |
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*new_fe_bh = NULL; |
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|
ccd979bdb [PATCH] OCFS2: Th... |
449 450 451 452 453 |
/* populate as many fields early on as possible - many of * these are used by the support functions here and in * callers. */ inode->i_ino = ino_from_blkno(osb->sb, fe_blkno); OCFS2_I(inode)->ip_blkno = fe_blkno; |
ccd979bdb [PATCH] OCFS2: Th... |
454 455 456 457 458 459 460 461 462 463 |
spin_lock(&osb->osb_lock); inode->i_generation = osb->s_next_generation++; spin_unlock(&osb->osb_lock); *new_fe_bh = sb_getblk(osb->sb, fe_blkno); if (!*new_fe_bh) { status = -EIO; mlog_errno(status); goto leave; } |
8cb471e8f ocfs2: Take the i... |
464 |
ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), *new_fe_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
465 |
|
0cf2f7632 ocfs2: Pass struc... |
466 467 |
status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), *new_fe_bh, |
13723d00e ocfs2: Use metada... |
468 |
OCFS2_JOURNAL_ACCESS_CREATE); |
ccd979bdb [PATCH] OCFS2: Th... |
469 470 471 472 473 474 475 476 477 478 479 |
if (status < 0) { mlog_errno(status); goto leave; } fe = (struct ocfs2_dinode *) (*new_fe_bh)->b_data; memset(fe, 0, osb->sb->s_blocksize); fe->i_generation = cpu_to_le32(inode->i_generation); fe->i_fs_generation = cpu_to_le32(osb->fs_generation); fe->i_blkno = cpu_to_le64(fe_blkno); |
2b6cb576a ocfs2: Set suball... |
480 |
fe->i_suballoc_loc = cpu_to_le64(suballoc_loc); |
ccd979bdb [PATCH] OCFS2: Th... |
481 |
fe->i_suballoc_bit = cpu_to_le16(suballoc_bit); |
4d0ddb2ce ocfs2: Add inode ... |
482 |
fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot); |
f5d362022 ocfs2: move new i... |
483 484 485 486 |
fe->i_uid = cpu_to_le32(inode->i_uid); fe->i_gid = cpu_to_le32(inode->i_gid); fe->i_mode = cpu_to_le16(inode->i_mode); if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) |
ccd979bdb [PATCH] OCFS2: Th... |
487 |
fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev)); |
198a1ca3b ocfs2: Increase m... |
488 489 |
ocfs2_set_links_count(fe, inode->i_nlink); |
ccd979bdb [PATCH] OCFS2: Th... |
490 491 492 493 494 495 496 497 498 |
fe->i_last_eb_blk = 0; strcpy(fe->i_signature, OCFS2_INODE_SIGNATURE); le32_add_cpu(&fe->i_flags, OCFS2_VALID_FL); fe->i_atime = fe->i_ctime = fe->i_mtime = cpu_to_le64(CURRENT_TIME.tv_sec); fe->i_mtime_nsec = fe->i_ctime_nsec = fe->i_atime_nsec = cpu_to_le32(CURRENT_TIME.tv_nsec); fe->i_dtime = 0; |
5b6a3a2b4 ocfs2: Write supp... |
499 |
/* |
9b7895efa ocfs2: Add a name... |
500 501 |
* If supported, directories start with inline data. If inline * isn't supported, but indexing is, we start them as indexed. |
5b6a3a2b4 ocfs2: Write supp... |
502 |
*/ |
9b7895efa ocfs2: Add a name... |
503 |
feat = le16_to_cpu(fe->i_dyn_features); |
f5d362022 ocfs2: move new i... |
504 |
if (S_ISDIR(inode->i_mode) && ocfs2_supports_inline_data(osb)) { |
5b6a3a2b4 ocfs2: Write supp... |
505 |
fe->i_dyn_features = cpu_to_le16(feat | OCFS2_INLINE_DATA_FL); |
d9ae49d6e ocfs2: tweak to g... |
506 507 |
fe->id2.i_data.id_count = cpu_to_le16( ocfs2_max_inline_data_with_xattr(osb->sb, fe)); |
5b6a3a2b4 ocfs2: Write supp... |
508 509 510 511 512 513 |
} else { fel = &fe->id2.i_list; fel->l_tree_depth = 0; fel->l_next_free_rec = 0; fel->l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(osb->sb)); } |
ccd979bdb [PATCH] OCFS2: Th... |
514 |
|
ec20cec7a ocfs2: Make ocfs2... |
515 |
ocfs2_journal_dirty(handle, *new_fe_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
516 |
|
b657c95c1 ocfs2: Wrap inode... |
517 |
ocfs2_populate_inode(inode, fe, 1); |
0cf2f7632 ocfs2: Pass struc... |
518 |
ocfs2_ci_set_new(osb, INODE_CACHE(inode)); |
c271c5c22 ocfs2: local mounts |
519 520 521 522 523 |
if (!ocfs2_mount_local(osb)) { status = ocfs2_create_new_inode_locks(inode); if (status < 0) mlog_errno(status); } |
ccd979bdb [PATCH] OCFS2: Th... |
524 525 526 |
status = 0; /* error in ocfs2_create_new_inode_locks is not * critical */ |
ccd979bdb [PATCH] OCFS2: Th... |
527 528 529 530 531 532 |
leave: if (status < 0) { if (*new_fe_bh) { brelse(*new_fe_bh); *new_fe_bh = NULL; } |
ccd979bdb [PATCH] OCFS2: Th... |
533 |
} |
c1e8d35ef ocfs2: Remove EXI... |
534 535 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
536 537 |
return status; } |
021960cab ocfs2: split out ... |
538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 |
static int ocfs2_mknod_locked(struct ocfs2_super *osb, struct inode *dir, struct inode *inode, dev_t dev, struct buffer_head **new_fe_bh, struct buffer_head *parent_fe_bh, handle_t *handle, struct ocfs2_alloc_context *inode_ac) { int status = 0; u64 suballoc_loc, fe_blkno = 0; u16 suballoc_bit; *new_fe_bh = NULL; status = ocfs2_claim_new_inode(handle, dir, parent_fe_bh, inode_ac, &suballoc_loc, &suballoc_bit, &fe_blkno); if (status < 0) { mlog_errno(status); return status; } return __ocfs2_mknod_locked(dir, inode, dev, new_fe_bh, parent_fe_bh, handle, inode_ac, fe_blkno, suballoc_loc, suballoc_bit); } |
ccd979bdb [PATCH] OCFS2: Th... |
565 566 567 568 569 |
static int ocfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode) { int ret; |
8990e44a2 ocfs2: Remove mas... |
570 571 |
trace_ocfs2_mkdir(dir, dentry, dentry->d_name.len, dentry->d_name.name, OCFS2_I(dir)->ip_blkno, mode); |
ccd979bdb [PATCH] OCFS2: Th... |
572 |
ret = ocfs2_mknod(dir, dentry, mode | S_IFDIR, 0); |
c1e8d35ef ocfs2: Remove EXI... |
573 574 |
if (ret) mlog_errno(ret); |
ccd979bdb [PATCH] OCFS2: Th... |
575 576 577 578 579 580 581 582 583 584 |
return ret; } static int ocfs2_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd) { int ret; |
8990e44a2 ocfs2: Remove mas... |
585 586 |
trace_ocfs2_create(dir, dentry, dentry->d_name.len, dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno, mode); |
ccd979bdb [PATCH] OCFS2: Th... |
587 |
ret = ocfs2_mknod(dir, dentry, mode | S_IFREG, 0); |
c1e8d35ef ocfs2: Remove EXI... |
588 589 |
if (ret) mlog_errno(ret); |
ccd979bdb [PATCH] OCFS2: Th... |
590 591 592 593 594 595 596 597 |
return ret; } static int ocfs2_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { |
1fabe1481 ocfs2: Remove str... |
598 |
handle_t *handle; |
ccd979bdb [PATCH] OCFS2: Th... |
599 600 601 602 |
struct inode *inode = old_dentry->d_inode; int err; struct buffer_head *fe_bh = NULL; struct buffer_head *parent_fe_bh = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
603 604 |
struct ocfs2_dinode *fe = NULL; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); |
4a12ca3a0 ocfs2: Introduce ... |
605 |
struct ocfs2_dir_lookup_result lookup = { NULL, }; |
547ba7c8e ocfs2: Block sign... |
606 |
sigset_t oldset; |
ccd979bdb [PATCH] OCFS2: Th... |
607 |
|
8990e44a2 ocfs2: Remove mas... |
608 609 610 |
trace_ocfs2_link((unsigned long long)OCFS2_I(inode)->ip_blkno, old_dentry->d_name.len, old_dentry->d_name.name, dentry->d_name.len, dentry->d_name.name); |
ccd979bdb [PATCH] OCFS2: Th... |
611 |
|
123a96434 ocfs2: don't pass... |
612 613 |
if (S_ISDIR(inode->i_mode)) return -EPERM; |
ccd979bdb [PATCH] OCFS2: Th... |
614 |
|
871a29315 dquot: cleanup dq... |
615 |
dquot_initialize(dir); |
907f4554e dquot: move dquot... |
616 |
|
cb25797d4 ocfs2: Add lockde... |
617 |
err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT); |
ccd979bdb [PATCH] OCFS2: Th... |
618 619 620 |
if (err < 0) { if (err != -ENOENT) mlog_errno(err); |
123a96434 ocfs2: don't pass... |
621 |
return err; |
ccd979bdb [PATCH] OCFS2: Th... |
622 |
} |
0f62de2c9 ocfs2: Fix direct... |
623 624 |
if (!dir->i_nlink) { err = -ENOENT; |
123a96434 ocfs2: don't pass... |
625 |
goto out; |
0f62de2c9 ocfs2: Fix direct... |
626 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
627 628 629 |
err = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, dentry->d_name.len); if (err) |
123a96434 ocfs2: don't pass... |
630 |
goto out; |
ccd979bdb [PATCH] OCFS2: Th... |
631 632 633 |
err = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, dentry->d_name.name, |
4a12ca3a0 ocfs2: Introduce ... |
634 |
dentry->d_name.len, &lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
635 636 |
if (err < 0) { mlog_errno(err); |
123a96434 ocfs2: don't pass... |
637 |
goto out; |
ccd979bdb [PATCH] OCFS2: Th... |
638 |
} |
e63aecb65 ocfs2: Rename ocf... |
639 |
err = ocfs2_inode_lock(inode, &fe_bh, 1); |
ccd979bdb [PATCH] OCFS2: Th... |
640 641 642 |
if (err < 0) { if (err != -ENOENT) mlog_errno(err); |
123a96434 ocfs2: don't pass... |
643 |
goto out; |
ccd979bdb [PATCH] OCFS2: Th... |
644 645 646 |
} fe = (struct ocfs2_dinode *) fe_bh->b_data; |
198a1ca3b ocfs2: Increase m... |
647 |
if (ocfs2_read_links_count(fe) >= ocfs2_link_max(osb)) { |
ccd979bdb [PATCH] OCFS2: Th... |
648 |
err = -EMLINK; |
123a96434 ocfs2: don't pass... |
649 |
goto out_unlock_inode; |
ccd979bdb [PATCH] OCFS2: Th... |
650 |
} |
a90714c15 ocfs2: Add quota ... |
651 |
handle = ocfs2_start_trans(osb, ocfs2_link_credits(osb->sb)); |
ccd979bdb [PATCH] OCFS2: Th... |
652 653 654 655 |
if (IS_ERR(handle)) { err = PTR_ERR(handle); handle = NULL; mlog_errno(err); |
123a96434 ocfs2: don't pass... |
656 |
goto out_unlock_inode; |
ccd979bdb [PATCH] OCFS2: Th... |
657 |
} |
547ba7c8e ocfs2: Block sign... |
658 659 |
/* Starting to change things, restart is no longer possible. */ ocfs2_block_signals(&oldset); |
0cf2f7632 ocfs2: Pass struc... |
660 |
err = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, |
13723d00e ocfs2: Use metada... |
661 |
OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bdb [PATCH] OCFS2: Th... |
662 663 |
if (err < 0) { mlog_errno(err); |
123a96434 ocfs2: don't pass... |
664 |
goto out_commit; |
ccd979bdb [PATCH] OCFS2: Th... |
665 |
} |
d8c76e6f4 [PATCH] r/o bind ... |
666 |
inc_nlink(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
667 |
inode->i_ctime = CURRENT_TIME; |
198a1ca3b ocfs2: Increase m... |
668 |
ocfs2_set_links_count(fe, inode->i_nlink); |
ccd979bdb [PATCH] OCFS2: Th... |
669 670 |
fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); |
ec20cec7a ocfs2: Make ocfs2... |
671 |
ocfs2_journal_dirty(handle, fe_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
672 673 674 |
err = ocfs2_add_entry(handle, dentry, inode, OCFS2_I(inode)->ip_blkno, |
4a12ca3a0 ocfs2: Introduce ... |
675 |
parent_fe_bh, &lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
676 |
if (err) { |
198a1ca3b ocfs2: Increase m... |
677 |
ocfs2_add_links_count(fe, -1); |
9a53c3a78 [PATCH] r/o bind ... |
678 |
drop_nlink(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
679 |
mlog_errno(err); |
123a96434 ocfs2: don't pass... |
680 |
goto out_commit; |
ccd979bdb [PATCH] OCFS2: Th... |
681 |
} |
0027dd5bc ocfs2: Remove spe... |
682 |
err = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); |
379dfe9d0 ocfs2: Hook rest ... |
683 684 |
if (err) { mlog_errno(err); |
123a96434 ocfs2: don't pass... |
685 |
goto out_commit; |
379dfe9d0 ocfs2: Hook rest ... |
686 |
} |
7de9c6ee3 new helper: ihold() |
687 |
ihold(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
688 |
d_instantiate(dentry, inode); |
123a96434 ocfs2: don't pass... |
689 690 |
out_commit: |
02dc1af44 ocfs2: pass ocfs2... |
691 |
ocfs2_commit_trans(osb, handle); |
547ba7c8e ocfs2: Block sign... |
692 |
ocfs2_unblock_signals(&oldset); |
123a96434 ocfs2: don't pass... |
693 |
out_unlock_inode: |
e63aecb65 ocfs2: Rename ocf... |
694 |
ocfs2_inode_unlock(inode, 1); |
123a96434 ocfs2: don't pass... |
695 696 |
out: |
e63aecb65 ocfs2: Rename ocf... |
697 |
ocfs2_inode_unlock(dir, 1); |
123a96434 ocfs2: don't pass... |
698 |
|
a81cb88b6 ocfs2: Don't chec... |
699 700 |
brelse(fe_bh); brelse(parent_fe_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
701 |
|
4a12ca3a0 ocfs2: Introduce ... |
702 |
ocfs2_free_dir_lookup_result(&lookup); |
c1e8d35ef ocfs2: Remove EXI... |
703 704 |
if (err) mlog_errno(err); |
ccd979bdb [PATCH] OCFS2: Th... |
705 706 707 |
return err; } |
379dfe9d0 ocfs2: Hook rest ... |
708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 |
/* * Takes and drops an exclusive lock on the given dentry. This will * force other nodes to drop it. */ static int ocfs2_remote_dentry_delete(struct dentry *dentry) { int ret; ret = ocfs2_dentry_lock(dentry, 1); if (ret) mlog_errno(ret); else ocfs2_dentry_unlock(dentry, 1); return ret; } |
17ff78569 [PATCH] r/o bind ... |
724 725 726 727 728 729 730 731 732 733 734 735 |
static inline int inode_is_unlinkable(struct inode *inode) { if (S_ISDIR(inode->i_mode)) { if (inode->i_nlink == 2) return 1; return 0; } if (inode->i_nlink == 1) return 1; return 0; } |
ccd979bdb [PATCH] OCFS2: Th... |
736 737 738 739 |
static int ocfs2_unlink(struct inode *dir, struct dentry *dentry) { int status; |
30a4f5e86 ocfs2: don't pass... |
740 |
int child_locked = 0; |
ccd979bdb [PATCH] OCFS2: Th... |
741 |
struct inode *inode = dentry->d_inode; |
5098c27bb ocfs2: don't pass... |
742 |
struct inode *orphan_dir = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
743 744 745 746 747 |
struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); u64 blkno; struct ocfs2_dinode *fe = NULL; struct buffer_head *fe_bh = NULL; struct buffer_head *parent_node_bh = NULL; |
1fabe1481 ocfs2: Remove str... |
748 |
handle_t *handle = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
749 |
char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; |
4a12ca3a0 ocfs2: Introduce ... |
750 751 |
struct ocfs2_dir_lookup_result lookup = { NULL, }; struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; |
ccd979bdb [PATCH] OCFS2: Th... |
752 |
|
8990e44a2 ocfs2: Remove mas... |
753 754 755 756 |
trace_ocfs2_unlink(dir, dentry, dentry->d_name.len, dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno, (unsigned long long)OCFS2_I(inode)->ip_blkno); |
ccd979bdb [PATCH] OCFS2: Th... |
757 |
|
871a29315 dquot: cleanup dq... |
758 |
dquot_initialize(dir); |
907f4554e dquot: move dquot... |
759 |
|
ccd979bdb [PATCH] OCFS2: Th... |
760 |
BUG_ON(dentry->d_parent->d_inode != dir); |
8990e44a2 ocfs2: Remove mas... |
761 |
if (inode == osb->root_inode) |
30a4f5e86 ocfs2: don't pass... |
762 |
return -EPERM; |
ccd979bdb [PATCH] OCFS2: Th... |
763 |
|
cb25797d4 ocfs2: Add lockde... |
764 765 |
status = ocfs2_inode_lock_nested(dir, &parent_node_bh, 1, OI_LS_PARENT); |
ccd979bdb [PATCH] OCFS2: Th... |
766 767 768 |
if (status < 0) { if (status != -ENOENT) mlog_errno(status); |
30a4f5e86 ocfs2: don't pass... |
769 |
return status; |
ccd979bdb [PATCH] OCFS2: Th... |
770 771 772 |
} status = ocfs2_find_files_on_disk(dentry->d_name.name, |
4a12ca3a0 ocfs2: Introduce ... |
773 774 |
dentry->d_name.len, &blkno, dir, &lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
775 776 777 778 779 780 781 782 |
if (status < 0) { if (status != -ENOENT) mlog_errno(status); goto leave; } if (OCFS2_I(inode)->ip_blkno != blkno) { status = -ENOENT; |
8990e44a2 ocfs2: Remove mas... |
783 784 785 786 |
trace_ocfs2_unlink_noent( (unsigned long long)OCFS2_I(inode)->ip_blkno, (unsigned long long)blkno, OCFS2_I(inode)->ip_flags); |
ccd979bdb [PATCH] OCFS2: Th... |
787 788 |
goto leave; } |
e63aecb65 ocfs2: Rename ocf... |
789 |
status = ocfs2_inode_lock(inode, &fe_bh, 1); |
ccd979bdb [PATCH] OCFS2: Th... |
790 791 792 793 794 |
if (status < 0) { if (status != -ENOENT) mlog_errno(status); goto leave; } |
30a4f5e86 ocfs2: don't pass... |
795 |
child_locked = 1; |
ccd979bdb [PATCH] OCFS2: Th... |
796 797 |
if (S_ISDIR(inode->i_mode)) { |
b80b549c3 ocfs2: re-order o... |
798 |
if (inode->i_nlink != 2 || !ocfs2_empty_dir(inode)) { |
ccd979bdb [PATCH] OCFS2: Th... |
799 800 801 802 |
status = -ENOTEMPTY; goto leave; } } |
379dfe9d0 ocfs2: Hook rest ... |
803 |
status = ocfs2_remote_dentry_delete(dentry); |
ccd979bdb [PATCH] OCFS2: Th... |
804 |
if (status < 0) { |
34d024f84 ocfs2: Remove mou... |
805 |
/* This remote delete should succeed under all normal |
ccd979bdb [PATCH] OCFS2: Th... |
806 807 808 809 |
* circumstances. */ mlog_errno(status); goto leave; } |
17ff78569 [PATCH] r/o bind ... |
810 |
if (inode_is_unlinkable(inode)) { |
19bd341f6 ocfs2: Use proper... |
811 812 |
status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, OCFS2_I(inode)->ip_blkno, |
4a12ca3a0 ocfs2: Introduce ... |
813 |
orphan_name, &orphan_insert); |
ccd979bdb [PATCH] OCFS2: Th... |
814 815 816 817 818 |
if (status < 0) { mlog_errno(status); goto leave; } } |
a90714c15 ocfs2: Add quota ... |
819 |
handle = ocfs2_start_trans(osb, ocfs2_unlink_credits(osb->sb)); |
ccd979bdb [PATCH] OCFS2: Th... |
820 821 822 823 824 825 |
if (IS_ERR(handle)) { status = PTR_ERR(handle); handle = NULL; mlog_errno(status); goto leave; } |
0cf2f7632 ocfs2: Pass struc... |
826 |
status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, |
13723d00e ocfs2: Use metada... |
827 |
OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bdb [PATCH] OCFS2: Th... |
828 829 830 831 832 833 |
if (status < 0) { mlog_errno(status); goto leave; } fe = (struct ocfs2_dinode *) fe_bh->b_data; |
17ff78569 [PATCH] r/o bind ... |
834 |
if (inode_is_unlinkable(inode)) { |
3939fda4b Ocfs2: Journaling... |
835 |
status = ocfs2_orphan_add(osb, handle, inode, fe_bh, orphan_name, |
4a12ca3a0 ocfs2: Introduce ... |
836 |
&orphan_insert, orphan_dir); |
ccd979bdb [PATCH] OCFS2: Th... |
837 838 839 840 841 842 843 |
if (status < 0) { mlog_errno(status); goto leave; } } /* delete the name from the parent dir */ |
4a12ca3a0 ocfs2: Introduce ... |
844 |
status = ocfs2_delete_entry(handle, dir, &lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
845 846 847 848 |
if (status < 0) { mlog_errno(status); goto leave; } |
17ff78569 [PATCH] r/o bind ... |
849 850 851 |
if (S_ISDIR(inode->i_mode)) drop_nlink(inode); drop_nlink(inode); |
198a1ca3b ocfs2: Increase m... |
852 |
ocfs2_set_links_count(fe, inode->i_nlink); |
ec20cec7a ocfs2: Make ocfs2... |
853 |
ocfs2_journal_dirty(handle, fe_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
854 |
|
592282cf2 ocfs2: Directory ... |
855 856 |
dir->i_ctime = dir->i_mtime = CURRENT_TIME; if (S_ISDIR(inode->i_mode)) |
17ff78569 [PATCH] r/o bind ... |
857 |
drop_nlink(dir); |
592282cf2 ocfs2: Directory ... |
858 859 860 861 862 |
status = ocfs2_mark_inode_dirty(handle, dir, parent_node_bh); if (status < 0) { mlog_errno(status); if (S_ISDIR(inode->i_mode)) |
d8c76e6f4 [PATCH] r/o bind ... |
863 |
inc_nlink(dir); |
ccd979bdb [PATCH] OCFS2: Th... |
864 865 866 |
} leave: |
ccd979bdb [PATCH] OCFS2: Th... |
867 |
if (handle) |
02dc1af44 ocfs2: pass ocfs2... |
868 |
ocfs2_commit_trans(osb, handle); |
ccd979bdb [PATCH] OCFS2: Th... |
869 |
|
30a4f5e86 ocfs2: don't pass... |
870 |
if (child_locked) |
e63aecb65 ocfs2: Rename ocf... |
871 |
ocfs2_inode_unlock(inode, 1); |
30a4f5e86 ocfs2: don't pass... |
872 |
|
e63aecb65 ocfs2: Rename ocf... |
873 |
ocfs2_inode_unlock(dir, 1); |
30a4f5e86 ocfs2: don't pass... |
874 |
|
5098c27bb ocfs2: don't pass... |
875 876 |
if (orphan_dir) { /* This was locked for us in ocfs2_prepare_orphan_dir() */ |
e63aecb65 ocfs2: Rename ocf... |
877 |
ocfs2_inode_unlock(orphan_dir, 1); |
5098c27bb ocfs2: don't pass... |
878 879 880 |
mutex_unlock(&orphan_dir->i_mutex); iput(orphan_dir); } |
a81cb88b6 ocfs2: Don't chec... |
881 |
brelse(fe_bh); |
a81cb88b6 ocfs2: Don't chec... |
882 |
brelse(parent_node_bh); |
4a12ca3a0 ocfs2: Introduce ... |
883 884 885 |
ocfs2_free_dir_lookup_result(&orphan_insert); ocfs2_free_dir_lookup_result(&lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
886 |
|
c1e8d35ef ocfs2: Remove EXI... |
887 888 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
889 890 891 892 893 894 895 896 897 |
return status; } /* * The only place this should be used is rename! * if they have the same id, then the 1st one is the only one locked. */ static int ocfs2_double_lock(struct ocfs2_super *osb, |
ccd979bdb [PATCH] OCFS2: Th... |
898 899 900 901 902 903 904 905 906 907 |
struct buffer_head **bh1, struct inode *inode1, struct buffer_head **bh2, struct inode *inode2) { int status; struct ocfs2_inode_info *oi1 = OCFS2_I(inode1); struct ocfs2_inode_info *oi2 = OCFS2_I(inode2); struct buffer_head **tmpbh; struct inode *tmpinode; |
8990e44a2 ocfs2: Remove mas... |
908 909 |
trace_ocfs2_double_lock((unsigned long long)oi1->ip_blkno, (unsigned long long)oi2->ip_blkno); |
ccd979bdb [PATCH] OCFS2: Th... |
910 |
|
ccd979bdb [PATCH] OCFS2: Th... |
911 912 913 914 915 916 917 918 919 |
if (*bh1) *bh1 = NULL; if (*bh2) *bh2 = NULL; /* we always want to lock the one with the lower lockid first. */ if (oi1->ip_blkno != oi2->ip_blkno) { if (oi1->ip_blkno < oi2->ip_blkno) { /* switch id1 and id2 around */ |
ccd979bdb [PATCH] OCFS2: Th... |
920 921 922 923 924 925 926 927 928 |
tmpbh = bh2; bh2 = bh1; bh1 = tmpbh; tmpinode = inode2; inode2 = inode1; inode1 = tmpinode; } /* lock id2 */ |
cb25797d4 ocfs2: Add lockde... |
929 930 |
status = ocfs2_inode_lock_nested(inode2, bh2, 1, OI_LS_RENAME1); |
ccd979bdb [PATCH] OCFS2: Th... |
931 932 933 934 935 936 |
if (status < 0) { if (status != -ENOENT) mlog_errno(status); goto bail; } } |
8d5596c68 ocfs2: don't pass... |
937 |
|
ccd979bdb [PATCH] OCFS2: Th... |
938 |
/* lock id1 */ |
cb25797d4 ocfs2: Add lockde... |
939 |
status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2); |
ccd979bdb [PATCH] OCFS2: Th... |
940 |
if (status < 0) { |
8d5596c68 ocfs2: don't pass... |
941 942 943 944 |
/* * An error return must mean that no cluster locks * were held on function exit. */ |
1e6d9153d ocfs2: Release bu... |
945 |
if (oi1->ip_blkno != oi2->ip_blkno) { |
e63aecb65 ocfs2: Rename ocf... |
946 |
ocfs2_inode_unlock(inode2, 1); |
1e6d9153d ocfs2: Release bu... |
947 948 949 |
brelse(*bh2); *bh2 = NULL; } |
8d5596c68 ocfs2: don't pass... |
950 |
|
ccd979bdb [PATCH] OCFS2: Th... |
951 952 |
if (status != -ENOENT) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
953 |
} |
8d5596c68 ocfs2: don't pass... |
954 |
|
8990e44a2 ocfs2: Remove mas... |
955 956 957 |
trace_ocfs2_double_lock_end( (unsigned long long)OCFS2_I(inode1)->ip_blkno, (unsigned long long)OCFS2_I(inode2)->ip_blkno); |
ccd979bdb [PATCH] OCFS2: Th... |
958 |
bail: |
c1e8d35ef ocfs2: Remove EXI... |
959 960 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
961 962 |
return status; } |
8d5596c68 ocfs2: don't pass... |
963 964 |
static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2) { |
e63aecb65 ocfs2: Rename ocf... |
965 |
ocfs2_inode_unlock(inode1, 1); |
8d5596c68 ocfs2: don't pass... |
966 967 |
if (inode1 != inode2) |
e63aecb65 ocfs2: Rename ocf... |
968 |
ocfs2_inode_unlock(inode2, 1); |
8d5596c68 ocfs2: don't pass... |
969 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
970 971 972 973 974 |
static int ocfs2_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { |
4a12ca3a0 ocfs2: Introduce ... |
975 976 |
int status = 0, rename_lock = 0, parents_locked = 0, target_exists = 0; int old_child_locked = 0, new_child_locked = 0, update_dot_dot = 0; |
ccd979bdb [PATCH] OCFS2: Th... |
977 978 |
struct inode *old_inode = old_dentry->d_inode; struct inode *new_inode = new_dentry->d_inode; |
5098c27bb ocfs2: don't pass... |
979 |
struct inode *orphan_dir = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
980 981 |
struct ocfs2_dinode *newfe = NULL; char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; |
ccd979bdb [PATCH] OCFS2: Th... |
982 |
struct buffer_head *newfe_bh = NULL; |
592282cf2 ocfs2: Directory ... |
983 |
struct buffer_head *old_inode_bh = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
984 |
struct ocfs2_super *osb = NULL; |
5b6a3a2b4 ocfs2: Write supp... |
985 |
u64 newfe_blkno, old_de_ino; |
1fabe1481 ocfs2: Remove str... |
986 |
handle_t *handle = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
987 988 |
struct buffer_head *old_dir_bh = NULL; struct buffer_head *new_dir_bh = NULL; |
592282cf2 ocfs2: Directory ... |
989 |
nlink_t old_dir_nlink = old_dir->i_nlink; |
480214d71 ocfs2: Fix rename... |
990 |
struct ocfs2_dinode *old_di; |
4a12ca3a0 ocfs2: Introduce ... |
991 992 993 994 995 |
struct ocfs2_dir_lookup_result old_inode_dot_dot_res = { NULL, }; struct ocfs2_dir_lookup_result target_lookup_res = { NULL, }; struct ocfs2_dir_lookup_result old_entry_lookup = { NULL, }; struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; struct ocfs2_dir_lookup_result target_insert = { NULL, }; |
ccd979bdb [PATCH] OCFS2: Th... |
996 997 998 |
/* At some point it might be nice to break this function up a * bit. */ |
8990e44a2 ocfs2: Remove mas... |
999 1000 1001 |
trace_ocfs2_rename(old_dir, old_dentry, new_dir, new_dentry, old_dentry->d_name.len, old_dentry->d_name.name, new_dentry->d_name.len, new_dentry->d_name.name); |
ccd979bdb [PATCH] OCFS2: Th... |
1002 |
|
871a29315 dquot: cleanup dq... |
1003 1004 |
dquot_initialize(old_dir); dquot_initialize(new_dir); |
907f4554e dquot: move dquot... |
1005 |
|
ccd979bdb [PATCH] OCFS2: Th... |
1006 1007 1008 1009 1010 1011 |
osb = OCFS2_SB(old_dir->i_sb); if (new_inode) { if (!igrab(new_inode)) BUG(); } |
1b3c3714c Fix typos concern... |
1012 |
/* Assume a directory hierarchy thusly: |
ccd979bdb [PATCH] OCFS2: Th... |
1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 |
* a/b/c * a/d * a,b,c, and d are all directories. * * from cwd of 'a' on both nodes: * node1: mv b/c d * node2: mv d b/c * * And that's why, just like the VFS, we need a file system * rename lock. */ |
5dabd6951 ocfs2: Improve re... |
1023 |
if (old_dir != new_dir && S_ISDIR(old_inode->i_mode)) { |
ccd979bdb [PATCH] OCFS2: Th... |
1024 1025 1026 1027 1028 1029 1030 |
status = ocfs2_rename_lock(osb); if (status < 0) { mlog_errno(status); goto bail; } rename_lock = 1; } |
ccd979bdb [PATCH] OCFS2: Th... |
1031 |
/* if old and new are the same, this'll just do one lock. */ |
8d5596c68 ocfs2: don't pass... |
1032 1033 |
status = ocfs2_double_lock(osb, &old_dir_bh, old_dir, &new_dir_bh, new_dir); |
ccd979bdb [PATCH] OCFS2: Th... |
1034 1035 1036 1037 |
if (status < 0) { mlog_errno(status); goto bail; } |
8d5596c68 ocfs2: don't pass... |
1038 |
parents_locked = 1; |
ccd979bdb [PATCH] OCFS2: Th... |
1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 |
/* make sure both dirs have bhs * get an extra ref on old_dir_bh if old==new */ if (!new_dir_bh) { if (old_dir_bh) { new_dir_bh = old_dir_bh; get_bh(new_dir_bh); } else { mlog(ML_ERROR, "no old_dir_bh! "); status = -EIO; goto bail; } } |
379dfe9d0 ocfs2: Hook rest ... |
1053 |
/* |
592282cf2 ocfs2: Directory ... |
1054 |
* Aside from allowing a meta data update, the locking here |
34d024f84 ocfs2: Remove mou... |
1055 1056 1057 |
* also ensures that the downconvert thread on other nodes * won't have to concurrently downconvert the inode and the * dentry locks. |
379dfe9d0 ocfs2: Hook rest ... |
1058 |
*/ |
cb25797d4 ocfs2: Add lockde... |
1059 1060 |
status = ocfs2_inode_lock_nested(old_inode, &old_inode_bh, 1, OI_LS_PARENT); |
379dfe9d0 ocfs2: Hook rest ... |
1061 1062 |
if (status < 0) { if (status != -ENOENT) |
ccd979bdb [PATCH] OCFS2: Th... |
1063 |
mlog_errno(status); |
379dfe9d0 ocfs2: Hook rest ... |
1064 1065 |
goto bail; } |
8d5596c68 ocfs2: don't pass... |
1066 |
old_child_locked = 1; |
ccd979bdb [PATCH] OCFS2: Th... |
1067 |
|
379dfe9d0 ocfs2: Hook rest ... |
1068 1069 1070 1071 1072 1073 1074 |
status = ocfs2_remote_dentry_delete(old_dentry); if (status < 0) { mlog_errno(status); goto bail; } if (S_ISDIR(old_inode->i_mode)) { |
38760e243 ocfs2: Rename cle... |
1075 |
u64 old_inode_parent; |
4a12ca3a0 ocfs2: Introduce ... |
1076 |
update_dot_dot = 1; |
38760e243 ocfs2: Rename cle... |
1077 |
status = ocfs2_find_files_on_disk("..", 2, &old_inode_parent, |
4a12ca3a0 ocfs2: Introduce ... |
1078 1079 |
old_inode, &old_inode_dot_dot_res); |
38760e243 ocfs2: Rename cle... |
1080 1081 |
if (status) { status = -EIO; |
ccd979bdb [PATCH] OCFS2: Th... |
1082 |
goto bail; |
38760e243 ocfs2: Rename cle... |
1083 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
1084 |
|
38760e243 ocfs2: Rename cle... |
1085 1086 |
if (old_inode_parent != OCFS2_I(old_dir)->ip_blkno) { status = -EIO; |
ccd979bdb [PATCH] OCFS2: Th... |
1087 |
goto bail; |
38760e243 ocfs2: Rename cle... |
1088 1089 1090 |
} if (!new_inode && new_dir != old_dir && |
198a1ca3b ocfs2: Increase m... |
1091 |
new_dir->i_nlink >= ocfs2_link_max(osb)) { |
38760e243 ocfs2: Rename cle... |
1092 |
status = -EMLINK; |
ccd979bdb [PATCH] OCFS2: Th... |
1093 |
goto bail; |
38760e243 ocfs2: Rename cle... |
1094 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
1095 |
} |
5b6a3a2b4 ocfs2: Write supp... |
1096 1097 1098 1099 1100 |
status = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name, old_dentry->d_name.len, &old_de_ino); if (status) { status = -ENOENT; |
ccd979bdb [PATCH] OCFS2: Th... |
1101 |
goto bail; |
5b6a3a2b4 ocfs2: Write supp... |
1102 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
1103 1104 1105 1106 1107 1108 1109 |
/* * Check for inode number is _not_ due to possible IO errors. * We might rmdir the source, keep it as pwd of some process * and merrily kill the link to whatever was created under the * same name. Goodbye sticky bit ;-< */ |
5b6a3a2b4 ocfs2: Write supp... |
1110 1111 |
if (old_de_ino != OCFS2_I(old_inode)->ip_blkno) { status = -ENOENT; |
ccd979bdb [PATCH] OCFS2: Th... |
1112 |
goto bail; |
5b6a3a2b4 ocfs2: Write supp... |
1113 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
1114 1115 1116 1117 1118 |
/* check if the target already exists (in which case we need * to delete it */ status = ocfs2_find_files_on_disk(new_dentry->d_name.name, new_dentry->d_name.len, |
4a12ca3a0 ocfs2: Introduce ... |
1119 1120 |
&newfe_blkno, new_dir, &target_lookup_res); |
ccd979bdb [PATCH] OCFS2: Th... |
1121 1122 1123 1124 1125 1126 1127 1128 |
/* The only error we allow here is -ENOENT because the new * file not existing is perfectly valid. */ if ((status < 0) && (status != -ENOENT)) { /* If we cannot find the file specified we should just */ /* return the error... */ mlog_errno(status); goto bail; } |
4a12ca3a0 ocfs2: Introduce ... |
1129 1130 |
if (status == 0) target_exists = 1; |
ccd979bdb [PATCH] OCFS2: Th... |
1131 |
|
4a12ca3a0 ocfs2: Introduce ... |
1132 |
if (!target_exists && new_inode) { |
e325a88f1 ocfs2: fix rename... |
1133 1134 1135 1136 1137 1138 1139 1140 1141 |
/* * Target was unlinked by another node while we were * waiting to get to ocfs2_rename(). There isn't * anything we can do here to help the situation, so * bubble up the appropriate error. */ status = -ENOENT; goto bail; } |
ccd979bdb [PATCH] OCFS2: Th... |
1142 1143 1144 |
/* In case we need to overwrite an existing file, we blow it * away first */ |
4a12ca3a0 ocfs2: Introduce ... |
1145 |
if (target_exists) { |
ccd979bdb [PATCH] OCFS2: Th... |
1146 1147 1148 1149 1150 1151 1152 |
/* VFS didn't think there existed an inode here, but * someone else in the cluster must have raced our * rename to create one. Today we error cleanly, in * the future we should consider calling iget to build * a new struct inode for this entry. */ if (!new_inode) { status = -EACCES; |
8990e44a2 ocfs2: Remove mas... |
1153 1154 |
trace_ocfs2_rename_target_exists(new_dentry->d_name.len, new_dentry->d_name.name); |
ccd979bdb [PATCH] OCFS2: Th... |
1155 1156 1157 1158 1159 |
goto bail; } if (OCFS2_I(new_inode)->ip_blkno != newfe_blkno) { status = -EACCES; |
8990e44a2 ocfs2: Remove mas... |
1160 |
trace_ocfs2_rename_disagree( |
b0697053f ocfs2: don't use ... |
1161 1162 |
(unsigned long long)OCFS2_I(new_inode)->ip_blkno, (unsigned long long)newfe_blkno, |
ccd979bdb [PATCH] OCFS2: Th... |
1163 1164 1165 |
OCFS2_I(new_inode)->ip_flags); goto bail; } |
e63aecb65 ocfs2: Rename ocf... |
1166 |
status = ocfs2_inode_lock(new_inode, &newfe_bh, 1); |
ccd979bdb [PATCH] OCFS2: Th... |
1167 1168 1169 1170 1171 |
if (status < 0) { if (status != -ENOENT) mlog_errno(status); goto bail; } |
8d5596c68 ocfs2: don't pass... |
1172 |
new_child_locked = 1; |
ccd979bdb [PATCH] OCFS2: Th... |
1173 |
|
379dfe9d0 ocfs2: Hook rest ... |
1174 |
status = ocfs2_remote_dentry_delete(new_dentry); |
ccd979bdb [PATCH] OCFS2: Th... |
1175 1176 1177 1178 1179 1180 |
if (status < 0) { mlog_errno(status); goto bail; } newfe = (struct ocfs2_dinode *) newfe_bh->b_data; |
8990e44a2 ocfs2: Remove mas... |
1181 |
trace_ocfs2_rename_over_existing( |
b0697053f ocfs2: don't use ... |
1182 |
(unsigned long long)newfe_blkno, newfe_bh, newfe_bh ? |
ccd979bdb [PATCH] OCFS2: Th... |
1183 1184 1185 |
(unsigned long long)newfe_bh->b_blocknr : 0ULL); if (S_ISDIR(new_inode->i_mode) || (new_inode->i_nlink == 1)) { |
5098c27bb ocfs2: don't pass... |
1186 |
status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, |
19bd341f6 ocfs2: Use proper... |
1187 1188 |
OCFS2_I(new_inode)->ip_blkno, orphan_name, &orphan_insert); |
ccd979bdb [PATCH] OCFS2: Th... |
1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 |
if (status < 0) { mlog_errno(status); goto bail; } } } else { BUG_ON(new_dentry->d_parent->d_inode != new_dir); status = ocfs2_check_dir_for_entry(new_dir, new_dentry->d_name.name, new_dentry->d_name.len); if (status) goto bail; status = ocfs2_prepare_dir_for_insert(osb, new_dir, new_dir_bh, new_dentry->d_name.name, new_dentry->d_name.len, |
4a12ca3a0 ocfs2: Introduce ... |
1206 |
&target_insert); |
ccd979bdb [PATCH] OCFS2: Th... |
1207 1208 1209 1210 1211 |
if (status < 0) { mlog_errno(status); goto bail; } } |
a90714c15 ocfs2: Add quota ... |
1212 |
handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); |
ccd979bdb [PATCH] OCFS2: Th... |
1213 1214 1215 1216 1217 1218 |
if (IS_ERR(handle)) { status = PTR_ERR(handle); handle = NULL; mlog_errno(status); goto bail; } |
4a12ca3a0 ocfs2: Introduce ... |
1219 |
if (target_exists) { |
ccd979bdb [PATCH] OCFS2: Th... |
1220 |
if (S_ISDIR(new_inode->i_mode)) { |
b80b549c3 ocfs2: re-order o... |
1221 1222 |
if (new_inode->i_nlink != 2 || !ocfs2_empty_dir(new_inode)) { |
ccd979bdb [PATCH] OCFS2: Th... |
1223 1224 1225 1226 |
status = -ENOTEMPTY; goto bail; } } |
0cf2f7632 ocfs2: Pass struc... |
1227 1228 |
status = ocfs2_journal_access_di(handle, INODE_CACHE(new_inode), newfe_bh, |
13723d00e ocfs2: Use metada... |
1229 |
OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bdb [PATCH] OCFS2: Th... |
1230 1231 1232 1233 1234 1235 |
if (status < 0) { mlog_errno(status); goto bail; } if (S_ISDIR(new_inode->i_mode) || |
198a1ca3b ocfs2: Increase m... |
1236 |
(ocfs2_read_links_count(newfe) == 1)) { |
ccd979bdb [PATCH] OCFS2: Th... |
1237 |
status = ocfs2_orphan_add(osb, handle, new_inode, |
3939fda4b Ocfs2: Journaling... |
1238 |
newfe_bh, orphan_name, |
4a12ca3a0 ocfs2: Introduce ... |
1239 |
&orphan_insert, orphan_dir); |
ccd979bdb [PATCH] OCFS2: Th... |
1240 1241 1242 1243 1244 1245 1246 |
if (status < 0) { mlog_errno(status); goto bail; } } /* change the dirent to point to the correct inode */ |
4a12ca3a0 ocfs2: Introduce ... |
1247 1248 |
status = ocfs2_update_entry(new_dir, handle, &target_lookup_res, old_inode); |
ccd979bdb [PATCH] OCFS2: Th... |
1249 1250 1251 1252 |
if (status < 0) { mlog_errno(status); goto bail; } |
ccd979bdb [PATCH] OCFS2: Th... |
1253 |
new_dir->i_version++; |
ccd979bdb [PATCH] OCFS2: Th... |
1254 1255 |
if (S_ISDIR(new_inode->i_mode)) |
198a1ca3b ocfs2: Increase m... |
1256 |
ocfs2_set_links_count(newfe, 0); |
ccd979bdb [PATCH] OCFS2: Th... |
1257 |
else |
198a1ca3b ocfs2: Increase m... |
1258 |
ocfs2_add_links_count(newfe, -1); |
ec20cec7a ocfs2: Make ocfs2... |
1259 |
ocfs2_journal_dirty(handle, newfe_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
1260 1261 1262 1263 |
} else { /* if the name was not found in new_dir, add it now */ status = ocfs2_add_entry(handle, new_dentry, old_inode, OCFS2_I(old_inode)->ip_blkno, |
4a12ca3a0 ocfs2: Introduce ... |
1264 |
new_dir_bh, &target_insert); |
ccd979bdb [PATCH] OCFS2: Th... |
1265 1266 1267 1268 |
} old_inode->i_ctime = CURRENT_TIME; mark_inode_dirty(old_inode); |
480214d71 ocfs2: Fix rename... |
1269 |
|
0cf2f7632 ocfs2: Pass struc... |
1270 1271 |
status = ocfs2_journal_access_di(handle, INODE_CACHE(old_inode), old_inode_bh, |
13723d00e ocfs2: Use metada... |
1272 |
OCFS2_JOURNAL_ACCESS_WRITE); |
480214d71 ocfs2: Fix rename... |
1273 1274 1275 1276 1277 |
if (status >= 0) { old_di = (struct ocfs2_dinode *) old_inode_bh->b_data; old_di->i_ctime = cpu_to_le64(old_inode->i_ctime.tv_sec); old_di->i_ctime_nsec = cpu_to_le32(old_inode->i_ctime.tv_nsec); |
ec20cec7a ocfs2: Make ocfs2... |
1278 |
ocfs2_journal_dirty(handle, old_inode_bh); |
480214d71 ocfs2: Fix rename... |
1279 1280 |
} else mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
1281 |
|
5b6a3a2b4 ocfs2: Write supp... |
1282 1283 1284 1285 1286 1287 1288 |
/* * Now that the name has been added to new_dir, remove the old name. * * We don't keep any directory entry context around until now * because the insert might have changed the type of directory * we're dealing with. */ |
4a12ca3a0 ocfs2: Introduce ... |
1289 1290 1291 1292 |
status = ocfs2_find_entry(old_dentry->d_name.name, old_dentry->d_name.len, old_dir, &old_entry_lookup); if (status) |
5b6a3a2b4 ocfs2: Write supp... |
1293 |
goto bail; |
5b6a3a2b4 ocfs2: Write supp... |
1294 |
|
4a12ca3a0 ocfs2: Introduce ... |
1295 |
status = ocfs2_delete_entry(handle, old_dir, &old_entry_lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
1296 1297 1298 1299 1300 1301 |
if (status < 0) { mlog_errno(status); goto bail; } if (new_inode) { |
6d6b77f16 filesystems: add ... |
1302 |
drop_nlink(new_inode); |
ccd979bdb [PATCH] OCFS2: Th... |
1303 1304 1305 |
new_inode->i_ctime = CURRENT_TIME; } old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME; |
4a12ca3a0 ocfs2: Introduce ... |
1306 1307 1308 1309 |
if (update_dot_dot) { status = ocfs2_update_entry(old_inode, handle, &old_inode_dot_dot_res, new_dir); |
6d6b77f16 filesystems: add ... |
1310 |
drop_nlink(old_dir); |
ccd979bdb [PATCH] OCFS2: Th... |
1311 |
if (new_inode) { |
6d6b77f16 filesystems: add ... |
1312 |
drop_nlink(new_inode); |
ccd979bdb [PATCH] OCFS2: Th... |
1313 |
} else { |
d8c76e6f4 [PATCH] r/o bind ... |
1314 |
inc_nlink(new_dir); |
ccd979bdb [PATCH] OCFS2: Th... |
1315 1316 1317 1318 |
mark_inode_dirty(new_dir); } } mark_inode_dirty(old_dir); |
592282cf2 ocfs2: Directory ... |
1319 1320 |
ocfs2_mark_inode_dirty(handle, old_dir, old_dir_bh); if (new_inode) { |
ccd979bdb [PATCH] OCFS2: Th... |
1321 |
mark_inode_dirty(new_inode); |
592282cf2 ocfs2: Directory ... |
1322 1323 |
ocfs2_mark_inode_dirty(handle, new_inode, newfe_bh); } |
ccd979bdb [PATCH] OCFS2: Th... |
1324 |
|
592282cf2 ocfs2: Directory ... |
1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 |
if (old_dir != new_dir) { /* Keep the same times on both directories.*/ new_dir->i_ctime = new_dir->i_mtime = old_dir->i_ctime; /* * This will also pick up the i_nlink change from the * block above. */ ocfs2_mark_inode_dirty(handle, new_dir, new_dir_bh); } |
ccd979bdb [PATCH] OCFS2: Th... |
1335 1336 1337 1338 |
if (old_dir_nlink != old_dir->i_nlink) { if (!old_dir_bh) { mlog(ML_ERROR, "need to change nlink for old dir " |
b0697053f ocfs2: don't use ... |
1339 1340 1341 1342 |
"%llu from %d to %d but bh is NULL! ", (unsigned long long)OCFS2_I(old_dir)->ip_blkno, (int)old_dir_nlink, old_dir->i_nlink); |
ccd979bdb [PATCH] OCFS2: Th... |
1343 1344 |
} else { struct ocfs2_dinode *fe; |
0cf2f7632 ocfs2: Pass struc... |
1345 1346 1347 1348 |
status = ocfs2_journal_access_di(handle, INODE_CACHE(old_dir), old_dir_bh, OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bdb [PATCH] OCFS2: Th... |
1349 |
fe = (struct ocfs2_dinode *) old_dir_bh->b_data; |
198a1ca3b ocfs2: Increase m... |
1350 |
ocfs2_set_links_count(fe, old_dir->i_nlink); |
ec20cec7a ocfs2: Make ocfs2... |
1351 |
ocfs2_journal_dirty(handle, old_dir_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
1352 1353 |
} } |
379dfe9d0 ocfs2: Hook rest ... |
1354 |
ocfs2_dentry_move(old_dentry, new_dentry, old_dir, new_dir); |
ccd979bdb [PATCH] OCFS2: Th... |
1355 1356 1357 1358 1359 1360 |
status = 0; bail: if (rename_lock) ocfs2_rename_unlock(osb); if (handle) |
02dc1af44 ocfs2: pass ocfs2... |
1361 |
ocfs2_commit_trans(osb, handle); |
ccd979bdb [PATCH] OCFS2: Th... |
1362 |
|
8d5596c68 ocfs2: don't pass... |
1363 1364 1365 1366 |
if (parents_locked) ocfs2_double_unlock(old_dir, new_dir); if (old_child_locked) |
e63aecb65 ocfs2: Rename ocf... |
1367 |
ocfs2_inode_unlock(old_inode, 1); |
8d5596c68 ocfs2: don't pass... |
1368 1369 |
if (new_child_locked) |
e63aecb65 ocfs2: Rename ocf... |
1370 |
ocfs2_inode_unlock(new_inode, 1); |
8d5596c68 ocfs2: don't pass... |
1371 |
|
5098c27bb ocfs2: don't pass... |
1372 1373 |
if (orphan_dir) { /* This was locked for us in ocfs2_prepare_orphan_dir() */ |
e63aecb65 ocfs2: Rename ocf... |
1374 |
ocfs2_inode_unlock(orphan_dir, 1); |
5098c27bb ocfs2: don't pass... |
1375 1376 1377 |
mutex_unlock(&orphan_dir->i_mutex); iput(orphan_dir); } |
ccd979bdb [PATCH] OCFS2: Th... |
1378 1379 1380 1381 1382 |
if (new_inode) sync_mapping_buffers(old_inode->i_mapping); if (new_inode) iput(new_inode); |
4a12ca3a0 ocfs2: Introduce ... |
1383 1384 1385 1386 1387 1388 |
ocfs2_free_dir_lookup_result(&target_lookup_res); ocfs2_free_dir_lookup_result(&old_entry_lookup); ocfs2_free_dir_lookup_result(&old_inode_dot_dot_res); ocfs2_free_dir_lookup_result(&orphan_insert); ocfs2_free_dir_lookup_result(&target_insert); |
a81cb88b6 ocfs2: Don't chec... |
1389 1390 1391 1392 |
brelse(newfe_bh); brelse(old_inode_bh); brelse(old_dir_bh); brelse(new_dir_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
1393 |
|
c1e8d35ef ocfs2: Remove EXI... |
1394 1395 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
1396 1397 1398 1399 1400 1401 1402 1403 1404 |
return status; } /* * we expect i_size = strlen(symname). Copy symname into the file * data, including the null terminator. */ static int ocfs2_create_symlink_data(struct ocfs2_super *osb, |
1fabe1481 ocfs2: Remove str... |
1405 |
handle_t *handle, |
ccd979bdb [PATCH] OCFS2: Th... |
1406 1407 1408 1409 1410 1411 |
struct inode *inode, const char *symname) { struct buffer_head **bhs = NULL; const char *c; struct super_block *sb = osb->sb; |
4f902c377 ocfs2: Fix extent... |
1412 |
u64 p_blkno, p_blocks; |
ccd979bdb [PATCH] OCFS2: Th... |
1413 1414 1415 1416 1417 1418 |
int virtual, blocks, status, i, bytes_left; bytes_left = i_size_read(inode) + 1; /* we can't trust i_blocks because we're actually going to * write i_size + 1 bytes. */ blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits; |
8990e44a2 ocfs2: Remove mas... |
1419 1420 |
trace_ocfs2_create_symlink_data((unsigned long long)inode->i_blocks, i_size_read(inode), blocks); |
ccd979bdb [PATCH] OCFS2: Th... |
1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 |
/* Sanity check -- make sure we're going to fit. */ if (bytes_left > ocfs2_clusters_to_bytes(sb, OCFS2_I(inode)->ip_clusters)) { status = -EIO; mlog_errno(status); goto bail; } bhs = kcalloc(blocks, sizeof(struct buffer_head *), GFP_KERNEL); if (!bhs) { status = -ENOMEM; mlog_errno(status); goto bail; } |
49cb8d2d4 ocfs2: Read from ... |
1436 1437 |
status = ocfs2_extent_map_get_blocks(inode, 0, &p_blkno, &p_blocks, NULL); |
ccd979bdb [PATCH] OCFS2: Th... |
1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 |
if (status < 0) { mlog_errno(status); goto bail; } /* links can never be larger than one cluster so we know this * is all going to be contiguous, but do a sanity check * anyway. */ if ((p_blocks << sb->s_blocksize_bits) < bytes_left) { status = -EIO; mlog_errno(status); goto bail; } virtual = 0; while(bytes_left > 0) { c = &symname[virtual * sb->s_blocksize]; bhs[virtual] = sb_getblk(sb, p_blkno); if (!bhs[virtual]) { status = -ENOMEM; mlog_errno(status); goto bail; } |
8cb471e8f ocfs2: Take the i... |
1462 1463 |
ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), bhs[virtual]); |
ccd979bdb [PATCH] OCFS2: Th... |
1464 |
|
0cf2f7632 ocfs2: Pass struc... |
1465 1466 |
status = ocfs2_journal_access(handle, INODE_CACHE(inode), bhs[virtual], |
ccd979bdb [PATCH] OCFS2: Th... |
1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 |
OCFS2_JOURNAL_ACCESS_CREATE); if (status < 0) { mlog_errno(status); goto bail; } memset(bhs[virtual]->b_data, 0, sb->s_blocksize); memcpy(bhs[virtual]->b_data, c, (bytes_left > sb->s_blocksize) ? sb->s_blocksize : bytes_left); |
ec20cec7a ocfs2: Make ocfs2... |
1478 |
ocfs2_journal_dirty(handle, bhs[virtual]); |
ccd979bdb [PATCH] OCFS2: Th... |
1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 |
virtual++; p_blkno++; bytes_left -= sb->s_blocksize; } status = 0; bail: if (bhs) { for(i = 0; i < blocks; i++) |
a81cb88b6 ocfs2: Don't chec... |
1490 |
brelse(bhs[i]); |
ccd979bdb [PATCH] OCFS2: Th... |
1491 1492 |
kfree(bhs); } |
c1e8d35ef ocfs2: Remove EXI... |
1493 1494 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 |
return status; } static int ocfs2_symlink(struct inode *dir, struct dentry *dentry, const char *symname) { int status, l, credits; u64 newsize; struct ocfs2_super *osb = NULL; struct inode *inode = NULL; struct super_block *sb; struct buffer_head *new_fe_bh = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
1508 1509 1510 |
struct buffer_head *parent_fe_bh = NULL; struct ocfs2_dinode *fe = NULL; struct ocfs2_dinode *dirfe; |
1fabe1481 ocfs2: Remove str... |
1511 |
handle_t *handle = NULL; |
ccd979bdb [PATCH] OCFS2: Th... |
1512 1513 |
struct ocfs2_alloc_context *inode_ac = NULL; struct ocfs2_alloc_context *data_ac = NULL; |
534eadddc ocfs2: add ocfs2_... |
1514 1515 1516 1517 1518 1519 |
struct ocfs2_alloc_context *xattr_ac = NULL; int want_clusters = 0; int xattr_credits = 0; struct ocfs2_security_xattr_info si = { .enable = 1, }; |
a90714c15 ocfs2: Add quota ... |
1520 |
int did_quota = 0, did_quota_inode = 0; |
4a12ca3a0 ocfs2: Introduce ... |
1521 |
struct ocfs2_dir_lookup_result lookup = { NULL, }; |
547ba7c8e ocfs2: Block sign... |
1522 1523 |
sigset_t oldset; int did_block_signals = 0; |
ccd979bdb [PATCH] OCFS2: Th... |
1524 |
|
8990e44a2 ocfs2: Remove mas... |
1525 1526 |
trace_ocfs2_symlink_begin(dir, dentry, symname, dentry->d_name.len, dentry->d_name.name); |
ccd979bdb [PATCH] OCFS2: Th... |
1527 |
|
871a29315 dquot: cleanup dq... |
1528 |
dquot_initialize(dir); |
907f4554e dquot: move dquot... |
1529 |
|
ccd979bdb [PATCH] OCFS2: Th... |
1530 1531 1532 1533 1534 1535 |
sb = dir->i_sb; osb = OCFS2_SB(sb); l = strlen(symname) + 1; credits = ocfs2_calc_symlink_credits(sb); |
ccd979bdb [PATCH] OCFS2: Th... |
1536 |
/* lock the parent directory */ |
e63aecb65 ocfs2: Rename ocf... |
1537 |
status = ocfs2_inode_lock(dir, &parent_fe_bh, 1); |
ccd979bdb [PATCH] OCFS2: Th... |
1538 1539 1540 |
if (status < 0) { if (status != -ENOENT) mlog_errno(status); |
6d8fc40e6 ocfs2: don't pass... |
1541 |
return status; |
ccd979bdb [PATCH] OCFS2: Th... |
1542 1543 1544 |
} dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data; |
198a1ca3b ocfs2: Increase m... |
1545 |
if (!ocfs2_read_links_count(dirfe)) { |
ccd979bdb [PATCH] OCFS2: Th... |
1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 |
/* can't make a file in a deleted directory. */ status = -ENOENT; goto bail; } status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, dentry->d_name.len); if (status) goto bail; status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh, dentry->d_name.name, |
4a12ca3a0 ocfs2: Introduce ... |
1558 |
dentry->d_name.len, &lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
1559 1560 1561 1562 |
if (status < 0) { mlog_errno(status); goto bail; } |
da5cbf2f9 ocfs2: don't use ... |
1563 |
status = ocfs2_reserve_new_inode(osb, &inode_ac); |
ccd979bdb [PATCH] OCFS2: Th... |
1564 1565 1566 1567 1568 |
if (status < 0) { if (status != -ENOSPC) mlog_errno(status); goto bail; } |
f5d362022 ocfs2: move new i... |
1569 1570 1571 1572 1573 1574 |
inode = ocfs2_get_init_inode(dir, S_IFLNK | S_IRWXUGO); if (!inode) { status = -ENOMEM; mlog_errno(status); goto bail; } |
534eadddc ocfs2: add ocfs2_... |
1575 |
/* get security xattr */ |
2a7dba391 fs/vfs/security: ... |
1576 |
status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si); |
534eadddc ocfs2: add ocfs2_... |
1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 |
if (status) { if (status == -EOPNOTSUPP) si.enable = 0; else { mlog_errno(status); goto bail; } } /* calculate meta data/clusters for setting security xattr */ if (si.enable) { status = ocfs2_calc_security_init(dir, &si, &want_clusters, &xattr_credits, &xattr_ac); |
ccd979bdb [PATCH] OCFS2: Th... |
1590 |
if (status < 0) { |
534eadddc ocfs2: add ocfs2_... |
1591 |
mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
1592 1593 1594 |
goto bail; } } |
534eadddc ocfs2: add ocfs2_... |
1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 |
/* don't reserve bitmap space for fast symlinks. */ if (l > ocfs2_fast_symlink_chars(sb)) want_clusters += 1; status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac); if (status < 0) { if (status != -ENOSPC) mlog_errno(status); goto bail; } handle = ocfs2_start_trans(osb, credits + xattr_credits); |
ccd979bdb [PATCH] OCFS2: Th... |
1607 1608 1609 1610 1611 1612 |
if (IS_ERR(handle)) { status = PTR_ERR(handle); handle = NULL; mlog_errno(status); goto bail; } |
547ba7c8e ocfs2: Block sign... |
1613 1614 1615 |
/* Starting to change things, restart is no longer possible. */ ocfs2_block_signals(&oldset); did_block_signals = 1; |
63936ddaa dquot: cleanup in... |
1616 1617 |
status = dquot_alloc_inode(inode); if (status) |
a90714c15 ocfs2: Add quota ... |
1618 |
goto bail; |
a90714c15 ocfs2: Add quota ... |
1619 |
did_quota_inode = 1; |
8990e44a2 ocfs2: Remove mas... |
1620 1621 1622 1623 |
trace_ocfs2_symlink_create(dir, dentry, dentry->d_name.len, dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno, inode->i_mode); |
19bd341f6 ocfs2: Use proper... |
1624 1625 |
status = ocfs2_mknod_locked(osb, dir, inode, |
f5d362022 ocfs2: move new i... |
1626 1627 |
0, &new_fe_bh, parent_fe_bh, handle, inode_ac); |
ccd979bdb [PATCH] OCFS2: Th... |
1628 1629 1630 1631 1632 1633 1634 1635 1636 |
if (status < 0) { mlog_errno(status); goto bail; } fe = (struct ocfs2_dinode *) new_fe_bh->b_data; inode->i_rdev = 0; newsize = l - 1; if (l > ocfs2_fast_symlink_chars(sb)) { |
dcd0538ff ocfs2: sparse b-t... |
1637 |
u32 offset = 0; |
ccd979bdb [PATCH] OCFS2: Th... |
1638 |
inode->i_op = &ocfs2_symlink_inode_operations; |
5dd4056db dquot: cleanup sp... |
1639 1640 1641 |
status = dquot_alloc_space_nodirty(inode, ocfs2_clusters_to_bytes(osb->sb, 1)); if (status) |
a90714c15 ocfs2: Add quota ... |
1642 |
goto bail; |
a90714c15 ocfs2: Add quota ... |
1643 |
did_quota = 1; |
0eb8d47e6 ocfs2: Make high ... |
1644 1645 1646 1647 |
status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0, new_fe_bh, handle, data_ac, NULL, NULL); |
ccd979bdb [PATCH] OCFS2: Th... |
1648 1649 |
if (status < 0) { if (status != -ENOSPC && status != -EINTR) { |
b0697053f ocfs2: don't use ... |
1650 1651 1652 1653 |
mlog(ML_ERROR, "Failed to extend file to %llu ", (unsigned long long)newsize); |
ccd979bdb [PATCH] OCFS2: Th... |
1654 1655 1656 1657 1658 1659 |
mlog_errno(status); status = -ENOSPC; } goto bail; } i_size_write(inode, newsize); |
8110b073a ocfs2: Fix up i_b... |
1660 |
inode->i_blocks = ocfs2_inode_sector_count(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 |
} else { inode->i_op = &ocfs2_fast_symlink_inode_operations; memcpy((char *) fe->id2.i_symlink, symname, l); i_size_write(inode, newsize); inode->i_blocks = 0; } status = ocfs2_mark_inode_dirty(handle, inode, new_fe_bh); if (status < 0) { mlog_errno(status); goto bail; } if (!ocfs2_inode_is_fast_symlink(inode)) { status = ocfs2_create_symlink_data(osb, handle, inode, symname); if (status < 0) { mlog_errno(status); goto bail; } } |
534eadddc ocfs2: add ocfs2_... |
1682 1683 1684 1685 1686 1687 1688 1689 |
if (si.enable) { status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si, xattr_ac, data_ac); if (status < 0) { mlog_errno(status); goto bail; } } |
a9743fcdc ocfs2: Add direct... |
1690 1691 1692 1693 1694 1695 1696 |
/* * Do this before adding the entry to the directory. We add * also set d_op after success so that ->d_iput() will cleanup * the dentry lock even if ocfs2_add_entry() fails below. */ status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); if (status) { |
ccd979bdb [PATCH] OCFS2: Th... |
1697 1698 1699 |
mlog_errno(status); goto bail; } |
a9743fcdc ocfs2: Add direct... |
1700 1701 1702 1703 |
status = ocfs2_add_entry(handle, dentry, inode, le64_to_cpu(fe->i_blkno), parent_fe_bh, &lookup); if (status < 0) { |
379dfe9d0 ocfs2: Hook rest ... |
1704 1705 1706 |
mlog_errno(status); goto bail; } |
ccd979bdb [PATCH] OCFS2: Th... |
1707 |
insert_inode_hash(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
1708 1709 |
d_instantiate(dentry, inode); bail: |
a90714c15 ocfs2: Add quota ... |
1710 |
if (status < 0 && did_quota) |
5dd4056db dquot: cleanup sp... |
1711 |
dquot_free_space_nodirty(inode, |
a90714c15 ocfs2: Add quota ... |
1712 1713 |
ocfs2_clusters_to_bytes(osb->sb, 1)); if (status < 0 && did_quota_inode) |
63936ddaa dquot: cleanup in... |
1714 |
dquot_free_inode(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
1715 |
if (handle) |
02dc1af44 ocfs2: pass ocfs2... |
1716 |
ocfs2_commit_trans(osb, handle); |
6d8fc40e6 ocfs2: don't pass... |
1717 |
|
e63aecb65 ocfs2: Rename ocf... |
1718 |
ocfs2_inode_unlock(dir, 1); |
547ba7c8e ocfs2: Block sign... |
1719 1720 |
if (did_block_signals) ocfs2_unblock_signals(&oldset); |
6d8fc40e6 ocfs2: don't pass... |
1721 |
|
a81cb88b6 ocfs2: Don't chec... |
1722 1723 |
brelse(new_fe_bh); brelse(parent_fe_bh); |
534eadddc ocfs2: add ocfs2_... |
1724 1725 |
kfree(si.name); kfree(si.value); |
4a12ca3a0 ocfs2: Introduce ... |
1726 |
ocfs2_free_dir_lookup_result(&lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
1727 1728 1729 1730 |
if (inode_ac) ocfs2_free_alloc_context(inode_ac); if (data_ac) ocfs2_free_alloc_context(data_ac); |
534eadddc ocfs2: add ocfs2_... |
1731 1732 |
if (xattr_ac) ocfs2_free_alloc_context(xattr_ac); |
f5d362022 ocfs2: move new i... |
1733 |
if ((status < 0) && inode) { |
ab41fdc8f ocfs2: use OCFS2_... |
1734 |
OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; |
f5d362022 ocfs2: move new i... |
1735 |
clear_nlink(inode); |
ccd979bdb [PATCH] OCFS2: Th... |
1736 |
iput(inode); |
f5d362022 ocfs2: move new i... |
1737 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
1738 |
|
c1e8d35ef ocfs2: Remove EXI... |
1739 1740 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
1741 1742 1743 |
return status; } |
ccd979bdb [PATCH] OCFS2: Th... |
1744 1745 1746 |
static int ocfs2_blkno_stringify(u64 blkno, char *name) { int status, namelen; |
b0697053f ocfs2: don't use ... |
1747 1748 |
namelen = snprintf(name, OCFS2_ORPHAN_NAMELEN + 1, "%016llx", (long long)blkno); |
ccd979bdb [PATCH] OCFS2: Th... |
1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 |
if (namelen <= 0) { if (namelen) status = namelen; else status = -EINVAL; mlog_errno(status); goto bail; } if (namelen != OCFS2_ORPHAN_NAMELEN) { status = -EINVAL; mlog_errno(status); goto bail; } |
8990e44a2 ocfs2: Remove mas... |
1762 |
trace_ocfs2_blkno_stringify(blkno, name, namelen); |
ccd979bdb [PATCH] OCFS2: Th... |
1763 1764 1765 |
status = 0; bail: |
c1e8d35ef ocfs2: Remove EXI... |
1766 1767 |
if (status < 0) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
1768 1769 |
return status; } |
dd43bcde2 ocfs2: split out ... |
1770 1771 1772 |
static int ocfs2_lookup_lock_orphan_dir(struct ocfs2_super *osb, struct inode **ret_orphan_dir, struct buffer_head **ret_orphan_dir_bh) |
ccd979bdb [PATCH] OCFS2: Th... |
1773 |
{ |
5098c27bb ocfs2: don't pass... |
1774 |
struct inode *orphan_dir_inode; |
ccd979bdb [PATCH] OCFS2: Th... |
1775 |
struct buffer_head *orphan_dir_bh = NULL; |
dd43bcde2 ocfs2: split out ... |
1776 |
int ret = 0; |
ccd979bdb [PATCH] OCFS2: Th... |
1777 1778 1779 1780 1781 |
orphan_dir_inode = ocfs2_get_system_file_inode(osb, ORPHAN_DIR_SYSTEM_INODE, osb->slot_num); if (!orphan_dir_inode) { |
dd43bcde2 ocfs2: split out ... |
1782 1783 1784 |
ret = -ENOENT; mlog_errno(ret); return ret; |
ccd979bdb [PATCH] OCFS2: Th... |
1785 |
} |
5098c27bb ocfs2: don't pass... |
1786 |
mutex_lock(&orphan_dir_inode->i_mutex); |
dd43bcde2 ocfs2: split out ... |
1787 1788 1789 1790 1791 1792 1793 |
ret = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); if (ret < 0) { mutex_unlock(&orphan_dir_inode->i_mutex); iput(orphan_dir_inode); mlog_errno(ret); return ret; |
ccd979bdb [PATCH] OCFS2: Th... |
1794 |
} |
dd43bcde2 ocfs2: split out ... |
1795 1796 |
*ret_orphan_dir = orphan_dir_inode; *ret_orphan_dir_bh = orphan_dir_bh; |
5098c27bb ocfs2: don't pass... |
1797 |
|
dd43bcde2 ocfs2: split out ... |
1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 |
return 0; } static int __ocfs2_prepare_orphan_dir(struct inode *orphan_dir_inode, struct buffer_head *orphan_dir_bh, u64 blkno, char *name, struct ocfs2_dir_lookup_result *lookup) { int ret; struct ocfs2_super *osb = OCFS2_SB(orphan_dir_inode->i_sb); ret = ocfs2_blkno_stringify(blkno, name); if (ret < 0) { mlog_errno(ret); return ret; } ret = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode, orphan_dir_bh, name, OCFS2_ORPHAN_NAMELEN, lookup); if (ret < 0) { mlog_errno(ret); return ret; } return 0; } /** * ocfs2_prepare_orphan_dir() - Prepare an orphan directory for * insertion of an orphan. * @osb: ocfs2 file system * @ret_orphan_dir: Orphan dir inode - returned locked! * @blkno: Actual block number of the inode to be inserted into orphan dir. * @lookup: dir lookup result, to be passed back into functions like * ocfs2_orphan_add * * Returns zero on success and the ret_orphan_dir, name and lookup * fields will be populated. * * Returns non-zero on failure. */ static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb, struct inode **ret_orphan_dir, u64 blkno, char *name, struct ocfs2_dir_lookup_result *lookup) { struct inode *orphan_dir_inode = NULL; struct buffer_head *orphan_dir_bh = NULL; int ret = 0; ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir_inode, &orphan_dir_bh); if (ret < 0) { mlog_errno(ret); return ret; } ret = __ocfs2_prepare_orphan_dir(orphan_dir_inode, orphan_dir_bh, blkno, name, lookup); if (ret < 0) { mlog_errno(ret); goto out; |
ccd979bdb [PATCH] OCFS2: Th... |
1863 |
} |
5098c27bb ocfs2: don't pass... |
1864 |
*ret_orphan_dir = orphan_dir_inode; |
dd43bcde2 ocfs2: split out ... |
1865 1866 1867 1868 1869 |
out: brelse(orphan_dir_bh); if (ret) { ocfs2_inode_unlock(orphan_dir_inode, 1); |
5098c27bb ocfs2: don't pass... |
1870 |
mutex_unlock(&orphan_dir_inode->i_mutex); |
ccd979bdb [PATCH] OCFS2: Th... |
1871 |
iput(orphan_dir_inode); |
5098c27bb ocfs2: don't pass... |
1872 |
} |
ccd979bdb [PATCH] OCFS2: Th... |
1873 |
|
c1e8d35ef ocfs2: Remove EXI... |
1874 1875 |
if (ret) mlog_errno(ret); |
dd43bcde2 ocfs2: split out ... |
1876 |
return ret; |
ccd979bdb [PATCH] OCFS2: Th... |
1877 1878 1879 |
} static int ocfs2_orphan_add(struct ocfs2_super *osb, |
1fabe1481 ocfs2: Remove str... |
1880 |
handle_t *handle, |
ccd979bdb [PATCH] OCFS2: Th... |
1881 |
struct inode *inode, |
3939fda4b Ocfs2: Journaling... |
1882 |
struct buffer_head *fe_bh, |
ccd979bdb [PATCH] OCFS2: Th... |
1883 |
char *name, |
4a12ca3a0 ocfs2: Introduce ... |
1884 |
struct ocfs2_dir_lookup_result *lookup, |
5098c27bb ocfs2: don't pass... |
1885 |
struct inode *orphan_dir_inode) |
ccd979bdb [PATCH] OCFS2: Th... |
1886 |
{ |
ccd979bdb [PATCH] OCFS2: Th... |
1887 1888 1889 |
struct buffer_head *orphan_dir_bh = NULL; int status = 0; struct ocfs2_dinode *orphan_fe; |
3939fda4b Ocfs2: Journaling... |
1890 |
struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data; |
ccd979bdb [PATCH] OCFS2: Th... |
1891 |
|
8990e44a2 ocfs2: Remove mas... |
1892 1893 |
trace_ocfs2_orphan_add_begin( (unsigned long long)OCFS2_I(inode)->ip_blkno); |
ccd979bdb [PATCH] OCFS2: Th... |
1894 |
|
b657c95c1 ocfs2: Wrap inode... |
1895 |
status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
1896 1897 1898 1899 |
if (status < 0) { mlog_errno(status); goto leave; } |
0cf2f7632 ocfs2: Pass struc... |
1900 1901 1902 |
status = ocfs2_journal_access_di(handle, INODE_CACHE(orphan_dir_inode), orphan_dir_bh, |
13723d00e ocfs2: Use metada... |
1903 |
OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bdb [PATCH] OCFS2: Th... |
1904 1905 1906 1907 1908 1909 1910 1911 1912 |
if (status < 0) { mlog_errno(status); goto leave; } /* we're a cluster, and nlink can change on disk from * underneath us... */ orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; if (S_ISDIR(inode->i_mode)) |
198a1ca3b ocfs2: Increase m... |
1913 |
ocfs2_add_links_count(orphan_fe, 1); |
bfe868486 filesystems: add ... |
1914 |
set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe)); |
ec20cec7a ocfs2: Make ocfs2... |
1915 |
ocfs2_journal_dirty(handle, orphan_dir_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
1916 1917 1918 1919 |
status = __ocfs2_add_entry(handle, orphan_dir_inode, name, OCFS2_ORPHAN_NAMELEN, inode, OCFS2_I(inode)->ip_blkno, |
4a12ca3a0 ocfs2: Introduce ... |
1920 |
orphan_dir_bh, lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
1921 1922 1923 1924 |
if (status < 0) { mlog_errno(status); goto leave; } |
3939fda4b Ocfs2: Journaling... |
1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 |
/* * We're going to journal the change of i_flags and i_orphaned_slot. * It's safe anyway, though some callers may duplicate the journaling. * Journaling within the func just make the logic look more * straightforward. */ status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto leave; } |
ccd979bdb [PATCH] OCFS2: Th... |
1939 |
le32_add_cpu(&fe->i_flags, OCFS2_ORPHANED_FL); |
d4cd1871c ocfs2: add OCFS2_... |
1940 |
OCFS2_I(inode)->ip_flags &= ~OCFS2_INODE_SKIP_ORPHAN_DIR; |
ccd979bdb [PATCH] OCFS2: Th... |
1941 1942 1943 1944 |
/* Record which orphan dir our inode now resides * in. delete_inode will use this to determine which orphan * dir to lock. */ |
500086300 ocfs2: Remove del... |
1945 |
fe->i_orphaned_slot = cpu_to_le16(osb->slot_num); |
ccd979bdb [PATCH] OCFS2: Th... |
1946 |
|
3939fda4b Ocfs2: Journaling... |
1947 |
ocfs2_journal_dirty(handle, fe_bh); |
8990e44a2 ocfs2: Remove mas... |
1948 1949 |
trace_ocfs2_orphan_add_end((unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num); |
ccd979bdb [PATCH] OCFS2: Th... |
1950 1951 |
leave: |
a81cb88b6 ocfs2: Don't chec... |
1952 |
brelse(orphan_dir_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
1953 |
|
c1e8d35ef ocfs2: Remove EXI... |
1954 1955 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
1956 1957 1958 1959 1960 |
return status; } /* unlike orphan_add, we expect the orphan dir to already be locked here. */ int ocfs2_orphan_del(struct ocfs2_super *osb, |
1fabe1481 ocfs2: Remove str... |
1961 |
handle_t *handle, |
ccd979bdb [PATCH] OCFS2: Th... |
1962 1963 1964 1965 1966 1967 1968 |
struct inode *orphan_dir_inode, struct inode *inode, struct buffer_head *orphan_dir_bh) { char name[OCFS2_ORPHAN_NAMELEN + 1]; struct ocfs2_dinode *orphan_fe; int status = 0; |
4a12ca3a0 ocfs2: Introduce ... |
1969 |
struct ocfs2_dir_lookup_result lookup = { NULL, }; |
ccd979bdb [PATCH] OCFS2: Th... |
1970 |
|
ccd979bdb [PATCH] OCFS2: Th... |
1971 1972 1973 1974 1975 |
status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name); if (status < 0) { mlog_errno(status); goto leave; } |
8990e44a2 ocfs2: Remove mas... |
1976 1977 1978 |
trace_ocfs2_orphan_del( (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno, name, OCFS2_ORPHAN_NAMELEN); |
ccd979bdb [PATCH] OCFS2: Th... |
1979 1980 |
/* find it's spot in the orphan directory */ |
4a12ca3a0 ocfs2: Introduce ... |
1981 1982 1983 |
status = ocfs2_find_entry(name, OCFS2_ORPHAN_NAMELEN, orphan_dir_inode, &lookup); if (status) { |
ccd979bdb [PATCH] OCFS2: Th... |
1984 1985 1986 1987 1988 |
mlog_errno(status); goto leave; } /* remove it from the orphan directory */ |
4a12ca3a0 ocfs2: Introduce ... |
1989 |
status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
1990 1991 1992 1993 |
if (status < 0) { mlog_errno(status); goto leave; } |
0cf2f7632 ocfs2: Pass struc... |
1994 1995 1996 |
status = ocfs2_journal_access_di(handle, INODE_CACHE(orphan_dir_inode), orphan_dir_bh, |
13723d00e ocfs2: Use metada... |
1997 |
OCFS2_JOURNAL_ACCESS_WRITE); |
ccd979bdb [PATCH] OCFS2: Th... |
1998 1999 2000 2001 2002 2003 2004 2005 |
if (status < 0) { mlog_errno(status); goto leave; } /* do the i_nlink dance! :) */ orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data; if (S_ISDIR(inode->i_mode)) |
198a1ca3b ocfs2: Increase m... |
2006 |
ocfs2_add_links_count(orphan_fe, -1); |
bfe868486 filesystems: add ... |
2007 |
set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe)); |
ec20cec7a ocfs2: Make ocfs2... |
2008 |
ocfs2_journal_dirty(handle, orphan_dir_bh); |
ccd979bdb [PATCH] OCFS2: Th... |
2009 2010 |
leave: |
4a12ca3a0 ocfs2: Introduce ... |
2011 |
ocfs2_free_dir_lookup_result(&lookup); |
ccd979bdb [PATCH] OCFS2: Th... |
2012 |
|
c1e8d35ef ocfs2: Remove EXI... |
2013 2014 |
if (status) mlog_errno(status); |
ccd979bdb [PATCH] OCFS2: Th... |
2015 2016 |
return status; } |
97b8f4a9d ocfs2: Fix orphan... |
2017 |
/** |
25985edce Fix common misspe... |
2018 |
* ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to receive a newly |
97b8f4a9d ocfs2: Fix orphan... |
2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 |
* allocated file. This is different from the typical 'add to orphan dir' * operation in that the inode does not yet exist. This is a problem because * the orphan dir stringifies the inode block number to come up with it's * dirent. Obviously if the inode does not yet exist we have a chicken and egg * problem. This function works around it by calling deeper into the orphan * and suballoc code than other callers. Use this only by necessity. * @dir: The directory which this inode will ultimately wind up under - not the * orphan dir! * @dir_bh: buffer_head the @dir inode block * @orphan_name: string of length (CFS2_ORPHAN_NAMELEN + 1). Will be filled * with the string to be used for orphan dirent. Pass back to the orphan dir * code. * @ret_orphan_dir: orphan dir inode returned to be passed back into orphan * dir code. * @ret_di_blkno: block number where the new inode will be allocated. * @orphan_insert: Dir insert context to be passed back into orphan dir code. * @ret_inode_ac: Inode alloc context to be passed back to the allocator. * * Returns zero on success and the ret_orphan_dir, name and lookup * fields will be populated. * * Returns non-zero on failure. */ static int ocfs2_prep_new_orphaned_file(struct inode *dir, struct buffer_head *dir_bh, char *orphan_name, struct inode **ret_orphan_dir, u64 *ret_di_blkno, struct ocfs2_dir_lookup_result *orphan_insert, struct ocfs2_alloc_context **ret_inode_ac) { int ret; u64 di_blkno; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); struct inode *orphan_dir = NULL; struct buffer_head *orphan_dir_bh = NULL; struct ocfs2_alloc_context *inode_ac = NULL; ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir, &orphan_dir_bh); if (ret < 0) { mlog_errno(ret); return ret; } /* reserve an inode spot */ ret = ocfs2_reserve_new_inode(osb, &inode_ac); if (ret < 0) { if (ret != -ENOSPC) mlog_errno(ret); goto out; } ret = ocfs2_find_new_inode_loc(dir, dir_bh, inode_ac, &di_blkno); if (ret) { mlog_errno(ret); goto out; } ret = __ocfs2_prepare_orphan_dir(orphan_dir, orphan_dir_bh, di_blkno, orphan_name, orphan_insert); if (ret < 0) { mlog_errno(ret); goto out; } out: if (ret == 0) { *ret_orphan_dir = orphan_dir; *ret_di_blkno = di_blkno; *ret_inode_ac = inode_ac; /* * orphan_name and orphan_insert are already up to * date via prepare_orphan_dir */ } else { /* Unroll reserve_new_inode* */ if (inode_ac) ocfs2_free_alloc_context(inode_ac); /* Unroll orphan dir locking */ mutex_unlock(&orphan_dir->i_mutex); ocfs2_inode_unlock(orphan_dir, 1); iput(orphan_dir); } brelse(orphan_dir_bh); return 0; } |
bc13d3475 ocfs2: Create ref... |
2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 |
int ocfs2_create_inode_in_orphan(struct inode *dir, int mode, struct inode **new_inode) { int status, did_quota_inode = 0; struct inode *inode = NULL; struct inode *orphan_dir = NULL; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); struct ocfs2_dinode *di = NULL; handle_t *handle = NULL; char orphan_name[OCFS2_ORPHAN_NAMELEN + 1]; struct buffer_head *parent_di_bh = NULL; struct buffer_head *new_di_bh = NULL; struct ocfs2_alloc_context *inode_ac = NULL; struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; |
97b8f4a9d ocfs2: Fix orphan... |
2124 2125 |
u64 uninitialized_var(di_blkno), suballoc_loc; u16 suballoc_bit; |
bc13d3475 ocfs2: Create ref... |
2126 2127 2128 2129 2130 2131 2132 |
status = ocfs2_inode_lock(dir, &parent_di_bh, 1); if (status < 0) { if (status != -ENOENT) mlog_errno(status); return status; } |
97b8f4a9d ocfs2: Fix orphan... |
2133 2134 2135 |
status = ocfs2_prep_new_orphaned_file(dir, parent_di_bh, orphan_name, &orphan_dir, &di_blkno, &orphan_insert, &inode_ac); |
bc13d3475 ocfs2: Create ref... |
2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 |
if (status < 0) { if (status != -ENOSPC) mlog_errno(status); goto leave; } inode = ocfs2_get_init_inode(dir, mode); if (!inode) { status = -ENOMEM; mlog_errno(status); goto leave; } handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, 0, 0)); if (IS_ERR(handle)) { status = PTR_ERR(handle); handle = NULL; mlog_errno(status); goto leave; } |
63936ddaa dquot: cleanup in... |
2156 2157 |
status = dquot_alloc_inode(inode); if (status) |
bc13d3475 ocfs2: Create ref... |
2158 |
goto leave; |
bc13d3475 ocfs2: Create ref... |
2159 |
did_quota_inode = 1; |
97b8f4a9d ocfs2: Fix orphan... |
2160 2161 2162 |
status = ocfs2_claim_new_inode_at_loc(handle, dir, inode_ac, &suballoc_loc, &suballoc_bit, di_blkno); |
bc13d3475 ocfs2: Create ref... |
2163 2164 2165 2166 |
if (status < 0) { mlog_errno(status); goto leave; } |
6d6b77f16 filesystems: add ... |
2167 |
clear_nlink(inode); |
97b8f4a9d ocfs2: Fix orphan... |
2168 2169 2170 2171 2172 |
/* do the real work now. */ status = __ocfs2_mknod_locked(dir, inode, 0, &new_di_bh, parent_di_bh, handle, inode_ac, di_blkno, suballoc_loc, suballoc_bit); |
bc13d3475 ocfs2: Create ref... |
2173 2174 2175 2176 2177 2178 |
if (status < 0) { mlog_errno(status); goto leave; } di = (struct ocfs2_dinode *)new_di_bh->b_data; |
3939fda4b Ocfs2: Journaling... |
2179 |
status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name, |
bc13d3475 ocfs2: Create ref... |
2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 |
&orphan_insert, orphan_dir); if (status < 0) { mlog_errno(status); goto leave; } /* get open lock so that only nodes can't remove it from orphan dir. */ status = ocfs2_open_lock(inode); if (status < 0) mlog_errno(status); |
c7d260afc ocfs2: Add reflin... |
2190 |
insert_inode_hash(inode); |
bc13d3475 ocfs2: Create ref... |
2191 2192 |
leave: if (status < 0 && did_quota_inode) |
63936ddaa dquot: cleanup in... |
2193 |
dquot_free_inode(inode); |
bc13d3475 ocfs2: Create ref... |
2194 2195 2196 2197 2198 2199 2200 2201 2202 |
if (handle) ocfs2_commit_trans(osb, handle); if (orphan_dir) { /* This was locked for us in ocfs2_prepare_orphan_dir() */ ocfs2_inode_unlock(orphan_dir, 1); mutex_unlock(&orphan_dir->i_mutex); iput(orphan_dir); } |
bc13d3475 ocfs2: Create ref... |
2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 |
if ((status < 0) && inode) { clear_nlink(inode); iput(inode); } if (inode_ac) ocfs2_free_alloc_context(inode_ac); brelse(new_di_bh); if (!status) *new_inode = inode; ocfs2_free_dir_lookup_result(&orphan_insert); ocfs2_inode_unlock(dir, 1); brelse(parent_di_bh); return status; } int ocfs2_mv_orphaned_inode_to_new(struct inode *dir, struct inode *inode, struct dentry *dentry) { int status = 0; struct buffer_head *parent_di_bh = NULL; handle_t *handle = NULL; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); struct ocfs2_dinode *dir_di, *di; struct inode *orphan_dir_inode = NULL; struct buffer_head *orphan_dir_bh = NULL; struct buffer_head *di_bh = NULL; struct ocfs2_dir_lookup_result lookup = { NULL, }; |
8990e44a2 ocfs2: Remove mas... |
2236 2237 2238 2239 |
trace_ocfs2_mv_orphaned_inode_to_new(dir, dentry, dentry->d_name.len, dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno, (unsigned long long)OCFS2_I(inode)->ip_blkno); |
bc13d3475 ocfs2: Create ref... |
2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 |
status = ocfs2_inode_lock(dir, &parent_di_bh, 1); if (status < 0) { if (status != -ENOENT) mlog_errno(status); return status; } dir_di = (struct ocfs2_dinode *) parent_di_bh->b_data; if (!dir_di->i_links_count) { /* can't make a file in a deleted directory. */ status = -ENOENT; goto leave; } status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name, dentry->d_name.len); if (status) goto leave; /* get a spot inside the dir. */ status = ocfs2_prepare_dir_for_insert(osb, dir, parent_di_bh, dentry->d_name.name, dentry->d_name.len, &lookup); if (status < 0) { mlog_errno(status); goto leave; } orphan_dir_inode = ocfs2_get_system_file_inode(osb, ORPHAN_DIR_SYSTEM_INODE, osb->slot_num); if (!orphan_dir_inode) { status = -EEXIST; mlog_errno(status); goto leave; } mutex_lock(&orphan_dir_inode->i_mutex); status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1); if (status < 0) { mlog_errno(status); mutex_unlock(&orphan_dir_inode->i_mutex); iput(orphan_dir_inode); goto leave; } status = ocfs2_read_inode_block(inode, &di_bh); if (status < 0) { mlog_errno(status); goto orphan_unlock; } handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb)); if (IS_ERR(handle)) { status = PTR_ERR(handle); handle = NULL; mlog_errno(status); goto orphan_unlock; } status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto out_commit; } status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode, orphan_dir_bh); if (status < 0) { mlog_errno(status); goto out_commit; } di = (struct ocfs2_dinode *)di_bh->b_data; le32_add_cpu(&di->i_flags, -OCFS2_ORPHANED_FL); di->i_orphaned_slot = 0; |
bfe868486 filesystems: add ... |
2319 |
set_nlink(inode, 1); |
10cf1a02f ocfs2: Set i_nlin... |
2320 |
ocfs2_set_links_count(di, inode->i_nlink); |
bc13d3475 ocfs2: Create ref... |
2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 |
ocfs2_journal_dirty(handle, di_bh); status = ocfs2_add_entry(handle, dentry, inode, OCFS2_I(inode)->ip_blkno, parent_di_bh, &lookup); if (status < 0) { mlog_errno(status); goto out_commit; } status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno); if (status) { mlog_errno(status); goto out_commit; } |
bc13d3475 ocfs2: Create ref... |
2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 |
d_instantiate(dentry, inode); status = 0; out_commit: ocfs2_commit_trans(osb, handle); orphan_unlock: ocfs2_inode_unlock(orphan_dir_inode, 1); mutex_unlock(&orphan_dir_inode->i_mutex); iput(orphan_dir_inode); leave: ocfs2_inode_unlock(dir, 1); brelse(di_bh); brelse(parent_di_bh); brelse(orphan_dir_bh); ocfs2_free_dir_lookup_result(&lookup); |
c1e8d35ef ocfs2: Remove EXI... |
2354 2355 |
if (status) mlog_errno(status); |
bc13d3475 ocfs2: Create ref... |
2356 2357 2358 |
return status; } |
92e1d5be9 [PATCH] mark stru... |
2359 |
const struct inode_operations ocfs2_dir_iops = { |
ccd979bdb [PATCH] OCFS2: Th... |
2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 |
.create = ocfs2_create, .lookup = ocfs2_lookup, .link = ocfs2_link, .unlink = ocfs2_unlink, .rmdir = ocfs2_unlink, .symlink = ocfs2_symlink, .mkdir = ocfs2_mkdir, .mknod = ocfs2_mknod, .rename = ocfs2_rename, .setattr = ocfs2_setattr, .getattr = ocfs2_getattr, |
d38eb8db6 ocfs2: implement ... |
2371 |
.permission = ocfs2_permission, |
cf1d6c763 ocfs2: Add extend... |
2372 2373 2374 2375 |
.setxattr = generic_setxattr, .getxattr = generic_getxattr, .listxattr = ocfs2_listxattr, .removexattr = generic_removexattr, |
55f4946ed Ocfs2: Should ocf... |
2376 |
.fiemap = ocfs2_fiemap, |
4e34e719e fs: take the ACL ... |
2377 |
.get_acl = ocfs2_iop_get_acl, |
ccd979bdb [PATCH] OCFS2: Th... |
2378 |
}; |