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fs/gfs2/ops_fstype.c
34.6 KB
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/* * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
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* Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
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* * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions |
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* of the GNU General Public License version 2. |
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*/ #include <linux/sched.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/completion.h> #include <linux/buffer_head.h> |
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#include <linux/blkdev.h> #include <linux/kthread.h> |
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#include <linux/export.h> |
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#include <linux/namei.h> #include <linux/mount.h> |
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#include <linux/gfs2_ondisk.h> |
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#include <linux/quotaops.h> |
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#include "gfs2.h" |
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#include "incore.h" |
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#include "bmap.h" |
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#include "glock.h" #include "glops.h" #include "inode.h" |
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#include "recovery.h" #include "rgrp.h" #include "super.h" |
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#include "sys.h" |
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#include "util.h" |
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#include "log.h" |
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#include "quota.h" |
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#include "dir.h" |
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#include "trace_gfs2.h" |
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#define DO 0 #define UNDO 1 |
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/** * gfs2_tune_init - Fill a gfs2_tune structure with default values * @gt: tune * */ static void gfs2_tune_init(struct gfs2_tune *gt) { spin_lock_init(>->gt_spin); |
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gt->gt_quota_simul_sync = 64; gt->gt_quota_warn_period = 10; gt->gt_quota_scale_num = 1; gt->gt_quota_scale_den = 1; |
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gt->gt_new_files_jdata = 0; gt->gt_max_readahead = 1 << 18; |
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gt->gt_complain_secs = 10; |
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} |
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static struct gfs2_sbd *init_sbd(struct super_block *sb) { struct gfs2_sbd *sdp; |
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|
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sdp = kzalloc(sizeof(struct gfs2_sbd), GFP_KERNEL); |
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if (!sdp) return NULL; |
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sb->s_fs_info = sdp; |
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sdp->sd_vfs = sb; |
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set_bit(SDF_NOJOURNALID, &sdp->sd_flags); |
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gfs2_tune_init(&sdp->sd_tune); |
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init_waitqueue_head(&sdp->sd_glock_wait); atomic_set(&sdp->sd_glock_disposal, 0); |
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init_completion(&sdp->sd_locking_init); |
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spin_lock_init(&sdp->sd_statfs_spin); |
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spin_lock_init(&sdp->sd_rindex_spin); |
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mutex_init(&sdp->sd_rindex_mutex); |
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sdp->sd_rindex_tree.rb_node = NULL; |
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INIT_LIST_HEAD(&sdp->sd_jindex_list); spin_lock_init(&sdp->sd_jindex_spin); |
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mutex_init(&sdp->sd_jindex_mutex); |
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INIT_LIST_HEAD(&sdp->sd_quota_list); |
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mutex_init(&sdp->sd_quota_mutex); |
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init_waitqueue_head(&sdp->sd_quota_wait); |
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INIT_LIST_HEAD(&sdp->sd_trunc_list); spin_lock_init(&sdp->sd_trunc_lock); |
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spin_lock_init(&sdp->sd_log_lock); |
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atomic_set(&sdp->sd_log_pinned, 0); |
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INIT_LIST_HEAD(&sdp->sd_log_le_buf); INIT_LIST_HEAD(&sdp->sd_log_le_revoke); INIT_LIST_HEAD(&sdp->sd_log_le_rg); INIT_LIST_HEAD(&sdp->sd_log_le_databuf); |
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INIT_LIST_HEAD(&sdp->sd_log_le_ordered); |
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init_waitqueue_head(&sdp->sd_log_waitq); init_waitqueue_head(&sdp->sd_logd_waitq); |
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spin_lock_init(&sdp->sd_ail_lock); |
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INIT_LIST_HEAD(&sdp->sd_ail1_list); INIT_LIST_HEAD(&sdp->sd_ail2_list); |
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init_rwsem(&sdp->sd_log_flush_lock); |
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atomic_set(&sdp->sd_log_in_flight, 0); init_waitqueue_head(&sdp->sd_log_flush_wait); |
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INIT_LIST_HEAD(&sdp->sd_revoke_list); |
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mutex_init(&sdp->sd_freeze_lock); |
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return sdp; } |
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/** * gfs2_check_sb - Check superblock * @sdp: the filesystem * @sb: The superblock * @silent: Don't print a message if the check fails * * Checks the version code of the FS is one that we understand how to * read and that the sizes of the various on-disk structures have not * changed. */ |
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static int gfs2_check_sb(struct gfs2_sbd *sdp, int silent) |
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{ |
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struct gfs2_sb_host *sb = &sdp->sd_sb; |
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if (sb->sb_magic != GFS2_MAGIC || sb->sb_type != GFS2_METATYPE_SB) { if (!silent) printk(KERN_WARNING "GFS2: not a GFS2 filesystem "); return -EINVAL; } /* If format numbers match exactly, we're done. */ if (sb->sb_fs_format == GFS2_FORMAT_FS && sb->sb_multihost_format == GFS2_FORMAT_MULTI) return 0; |
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fs_warn(sdp, "Unknown on-disk format, unable to mount "); |
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return -EINVAL; |
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} static void end_bio_io_page(struct bio *bio, int error) { struct page *page = bio->bi_private; if (!error) SetPageUptodate(page); else printk(KERN_WARNING "gfs2: error %d reading superblock ", error); unlock_page(page); } |
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static void gfs2_sb_in(struct gfs2_sbd *sdp, const void *buf) |
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{ |
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struct gfs2_sb_host *sb = &sdp->sd_sb; struct super_block *s = sdp->sd_vfs; |
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const struct gfs2_sb *str = buf; sb->sb_magic = be32_to_cpu(str->sb_header.mh_magic); sb->sb_type = be32_to_cpu(str->sb_header.mh_type); sb->sb_format = be32_to_cpu(str->sb_header.mh_format); sb->sb_fs_format = be32_to_cpu(str->sb_fs_format); sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format); sb->sb_bsize = be32_to_cpu(str->sb_bsize); sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift); sb->sb_master_dir.no_addr = be64_to_cpu(str->sb_master_dir.no_addr); sb->sb_master_dir.no_formal_ino = be64_to_cpu(str->sb_master_dir.no_formal_ino); sb->sb_root_dir.no_addr = be64_to_cpu(str->sb_root_dir.no_addr); sb->sb_root_dir.no_formal_ino = be64_to_cpu(str->sb_root_dir.no_formal_ino); memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN); memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN); |
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memcpy(s->s_uuid, str->sb_uuid, 16); |
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} /** * gfs2_read_super - Read the gfs2 super block from disk * @sdp: The GFS2 super block * @sector: The location of the super block * @error: The error code to return * * This uses the bio functions to read the super block from disk * because we want to be 100% sure that we never read cached data. * A super block is read twice only during each GFS2 mount and is * never written to by the filesystem. The first time its read no * locks are held, and the only details which are looked at are those * relating to the locking protocol. Once locking is up and working, * the sb is read again under the lock to establish the location of * the master directory (contains pointers to journals etc) and the * root directory. * * Returns: 0 on success or error */ |
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static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector, int silent) |
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{ struct super_block *sb = sdp->sd_vfs; struct gfs2_sb *p; struct page *page; struct bio *bio; page = alloc_page(GFP_NOFS); if (unlikely(!page)) return -ENOBUFS; ClearPageUptodate(page); ClearPageDirty(page); lock_page(page); bio = bio_alloc(GFP_NOFS, 1); |
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bio->bi_sector = sector * (sb->s_blocksize >> 9); bio->bi_bdev = sb->s_bdev; bio_add_page(bio, page, PAGE_SIZE, 0); bio->bi_end_io = end_bio_io_page; bio->bi_private = page; |
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submit_bio(READ_SYNC | REQ_META, bio); |
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wait_on_page_locked(page); bio_put(bio); if (!PageUptodate(page)) { __free_page(page); return -EIO; } p = kmap(page); |
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gfs2_sb_in(sdp, p); |
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kunmap(page); __free_page(page); |
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return gfs2_check_sb(sdp, silent); |
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} |
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/** * gfs2_read_sb - Read super block * @sdp: The GFS2 superblock |
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* @silent: Don't print message if mount fails * */ |
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static int gfs2_read_sb(struct gfs2_sbd *sdp, int silent) |
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{ u32 hash_blocks, ind_blocks, leaf_blocks; u32 tmp_blocks; unsigned int x; int error; |
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error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift, silent); |
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if (error) { if (!silent) fs_err(sdp, "can't read superblock "); return error; } |
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sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT; sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; sdp->sd_diptrs = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode)) / sizeof(u64); sdp->sd_inptrs = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64); sdp->sd_jbsize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header); sdp->sd_hash_bsize = sdp->sd_sb.sb_bsize / 2; sdp->sd_hash_bsize_shift = sdp->sd_sb.sb_bsize_shift - 1; sdp->sd_hash_ptrs = sdp->sd_hash_bsize / sizeof(u64); sdp->sd_qc_per_block = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(struct gfs2_quota_change); /* Compute maximum reservation required to add a entry to a directory */ hash_blocks = DIV_ROUND_UP(sizeof(u64) * (1 << GFS2_DIR_MAX_DEPTH), sdp->sd_jbsize); ind_blocks = 0; for (tmp_blocks = hash_blocks; tmp_blocks > sdp->sd_diptrs;) { tmp_blocks = DIV_ROUND_UP(tmp_blocks, sdp->sd_inptrs); ind_blocks += tmp_blocks; } leaf_blocks = 2 + GFS2_DIR_MAX_DEPTH; sdp->sd_max_dirres = hash_blocks + ind_blocks + leaf_blocks; sdp->sd_heightsize[0] = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode); sdp->sd_heightsize[1] = sdp->sd_sb.sb_bsize * sdp->sd_diptrs; for (x = 2;; x++) { u64 space, d; u32 m; space = sdp->sd_heightsize[x - 1] * sdp->sd_inptrs; d = space; m = do_div(d, sdp->sd_inptrs); if (d != sdp->sd_heightsize[x - 1] || m) break; sdp->sd_heightsize[x] = space; } sdp->sd_max_height = x; sdp->sd_heightsize[x] = ~0; gfs2_assert(sdp, sdp->sd_max_height <= GFS2_MAX_META_HEIGHT); sdp->sd_jheightsize[0] = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode); sdp->sd_jheightsize[1] = sdp->sd_jbsize * sdp->sd_diptrs; for (x = 2;; x++) { u64 space, d; u32 m; space = sdp->sd_jheightsize[x - 1] * sdp->sd_inptrs; d = space; m = do_div(d, sdp->sd_inptrs); if (d != sdp->sd_jheightsize[x - 1] || m) break; sdp->sd_jheightsize[x] = space; } sdp->sd_max_jheight = x; sdp->sd_jheightsize[x] = ~0; gfs2_assert(sdp, sdp->sd_max_jheight <= GFS2_MAX_META_HEIGHT); return 0; } |
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static int init_names(struct gfs2_sbd *sdp, int silent) { |
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char *proto, *table; int error = 0; proto = sdp->sd_args.ar_lockproto; table = sdp->sd_args.ar_locktable; /* Try to autodetect */ if (!proto[0] || !table[0]) { |
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error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift, silent); |
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if (error) return error; |
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if (!proto[0]) |
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proto = sdp->sd_sb.sb_lockproto; |
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if (!table[0]) |
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table = sdp->sd_sb.sb_locktable; |
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} if (!table[0]) table = sdp->sd_vfs->s_id; |
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strlcpy(sdp->sd_proto_name, proto, GFS2_FSNAME_LEN); strlcpy(sdp->sd_table_name, table, GFS2_FSNAME_LEN); |
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table = sdp->sd_table_name; while ((table = strchr(table, '/'))) |
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*table = '_'; |
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return error; } static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, int undo) { |
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int error = 0; if (undo) goto fail_trans; |
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error = gfs2_glock_nq_num(sdp, GFS2_MOUNT_LOCK, &gfs2_nondisk_glops, LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE, mount_gh); if (error) { fs_err(sdp, "can't acquire mount glock: %d ", error); goto fail; } error = gfs2_glock_nq_num(sdp, GFS2_LIVE_LOCK, &gfs2_nondisk_glops, LM_ST_SHARED, |
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LM_FLAG_NOEXP | GL_EXACT, |
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&sdp->sd_live_gh); if (error) { fs_err(sdp, "can't acquire live glock: %d ", error); goto fail_mount; } error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops, CREATE, &sdp->sd_rename_gl); if (error) { fs_err(sdp, "can't create rename glock: %d ", error); goto fail_live; } error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops, CREATE, &sdp->sd_trans_gl); if (error) { fs_err(sdp, "can't create transaction glock: %d ", error); goto fail_rename; } |
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return 0; |
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fail_trans: |
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gfs2_glock_put(sdp->sd_trans_gl); |
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fail_rename: |
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gfs2_glock_put(sdp->sd_rename_gl); |
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fail_live: |
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gfs2_glock_dq_uninit(&sdp->sd_live_gh); |
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fail_mount: |
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gfs2_glock_dq_uninit(mount_gh); |
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fail: |
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return error; } |
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static int gfs2_lookup_root(struct super_block *sb, struct dentry **dptr, u64 no_addr, const char *name) |
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{ |
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struct gfs2_sbd *sdp = sb->s_fs_info; struct dentry *dentry; struct inode *inode; |
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inode = gfs2_inode_lookup(sb, DT_DIR, no_addr, 0, 0); |
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if (IS_ERR(inode)) { fs_err(sdp, "can't read in %s inode: %ld ", name, PTR_ERR(inode)); return PTR_ERR(inode); } dentry = d_alloc_root(inode); if (!dentry) { fs_err(sdp, "can't alloc %s dentry ", name); iput(inode); return -ENOMEM; } |
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*dptr = dentry; return 0; |
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} |
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static int init_sb(struct gfs2_sbd *sdp, int silent) |
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{ struct super_block *sb = sdp->sd_vfs; struct gfs2_holder sb_gh; |
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u64 no_addr; |
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int ret; |
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436 |
|
9b8df98fc GFS2: Fix metafs ... |
437 438 439 440 441 442 |
ret = gfs2_glock_nq_num(sdp, GFS2_SB_LOCK, &gfs2_meta_glops, LM_ST_SHARED, 0, &sb_gh); if (ret) { fs_err(sdp, "can't acquire superblock glock: %d ", ret); return ret; |
b3b94faa5 [GFS2] The core o... |
443 |
} |
907b9bceb [GFS2/DLM] Fix tr... |
444 |
|
6bac243f0 GFS2: Clean up of... |
445 |
ret = gfs2_read_sb(sdp, silent); |
9b8df98fc GFS2: Fix metafs ... |
446 447 448 |
if (ret) { fs_err(sdp, "can't read superblock: %d ", ret); |
b3b94faa5 [GFS2] The core o... |
449 450 451 452 |
goto out; } /* Set up the buffer cache and SB for real */ |
e1defc4ff block: Do away wi... |
453 |
if (sdp->sd_sb.sb_bsize < bdev_logical_block_size(sb->s_bdev)) { |
9b8df98fc GFS2: Fix metafs ... |
454 |
ret = -EINVAL; |
b3b94faa5 [GFS2] The core o... |
455 456 457 |
fs_err(sdp, "FS block size (%u) is too small for device " "block size (%u) ", |
e1defc4ff block: Do away wi... |
458 |
sdp->sd_sb.sb_bsize, bdev_logical_block_size(sb->s_bdev)); |
b3b94faa5 [GFS2] The core o... |
459 460 461 |
goto out; } if (sdp->sd_sb.sb_bsize > PAGE_SIZE) { |
9b8df98fc GFS2: Fix metafs ... |
462 |
ret = -EINVAL; |
b3b94faa5 [GFS2] The core o... |
463 464 465 466 467 468 |
fs_err(sdp, "FS block size (%u) is too big for machine " "page size (%u) ", sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE); goto out; } |
b3b94faa5 [GFS2] The core o... |
469 |
sb_set_blocksize(sb, sdp->sd_sb.sb_bsize); |
f42faf4fa [GFS2] Add gfs2_i... |
470 |
/* Get the root inode */ |
dbb7cae2a [GFS2] Clean up i... |
471 |
no_addr = sdp->sd_sb.sb_root_dir.no_addr; |
9b8df98fc GFS2: Fix metafs ... |
472 473 |
ret = gfs2_lookup_root(sb, &sdp->sd_root_dir, no_addr, "root"); if (ret) |
f42faf4fa [GFS2] Add gfs2_i... |
474 |
goto out; |
b3b94faa5 [GFS2] The core o... |
475 |
|
9b8df98fc GFS2: Fix metafs ... |
476 477 478 479 480 481 482 483 |
/* Get the master inode */ no_addr = sdp->sd_sb.sb_master_dir.no_addr; ret = gfs2_lookup_root(sb, &sdp->sd_master_dir, no_addr, "master"); if (ret) { dput(sdp->sd_root_dir); goto out; } sb->s_root = dget(sdp->sd_args.ar_meta ? sdp->sd_master_dir : sdp->sd_root_dir); |
f42faf4fa [GFS2] Add gfs2_i... |
484 |
out: |
b3b94faa5 [GFS2] The core o... |
485 |
gfs2_glock_dq_uninit(&sb_gh); |
9b8df98fc GFS2: Fix metafs ... |
486 |
return ret; |
b3b94faa5 [GFS2] The core o... |
487 |
} |
da6dd40d5 [GFS2] Journal ex... |
488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 |
/** * map_journal_extents - create a reusable "extent" mapping from all logical * blocks to all physical blocks for the given journal. This will save * us time when writing journal blocks. Most journals will have only one * extent that maps all their logical blocks. That's because gfs2.mkfs * arranges the journal blocks sequentially to maximize performance. * So the extent would map the first block for the entire file length. * However, gfs2_jadd can happen while file activity is happening, so * those journals may not be sequential. Less likely is the case where * the users created their own journals by mounting the metafs and * laying it out. But it's still possible. These journals might have * several extents. * * TODO: This should be done in bigger chunks rather than one block at a time, * but since it's only done at mount time, I'm not worried about the * time it takes. */ static int map_journal_extents(struct gfs2_sbd *sdp) { struct gfs2_jdesc *jd = sdp->sd_jdesc; unsigned int lb; u64 db, prev_db; /* logical block, disk block, prev disk block */ struct gfs2_inode *ip = GFS2_I(jd->jd_inode); struct gfs2_journal_extent *jext = NULL; struct buffer_head bh; int rc = 0; |
da6dd40d5 [GFS2] Journal ex... |
514 |
prev_db = 0; |
a2e0f7993 GFS2: Remove i_di... |
515 |
for (lb = 0; lb < i_size_read(jd->jd_inode) >> sdp->sd_sb.sb_bsize_shift; lb++) { |
da6dd40d5 [GFS2] Journal ex... |
516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 |
bh.b_state = 0; bh.b_blocknr = 0; bh.b_size = 1 << ip->i_inode.i_blkbits; rc = gfs2_block_map(jd->jd_inode, lb, &bh, 0); db = bh.b_blocknr; if (rc || !db) { printk(KERN_INFO "GFS2 journal mapping error %d: lb=" "%u db=%llu ", rc, lb, (unsigned long long)db); break; } if (!prev_db || db != prev_db + 1) { jext = kzalloc(sizeof(struct gfs2_journal_extent), GFP_KERNEL); if (!jext) { printk(KERN_INFO "GFS2 error: out of memory " "mapping journal extents. "); rc = -ENOMEM; break; } jext->dblock = db; jext->lblock = lb; jext->blocks = 1; list_add_tail(&jext->extent_list, &jd->extent_list); } else { jext->blocks++; } prev_db = db; } return rc; } |
f057f6cdf GFS2: Merge lock_... |
548 |
static void gfs2_others_may_mount(struct gfs2_sbd *sdp) |
da755fdb4 [GFS2] Remove lm.... |
549 |
{ |
f057f6cdf GFS2: Merge lock_... |
550 551 |
char *message = "FIRSTMOUNT=Done"; char *envp[] = { message, NULL }; |
e0c2a9aa1 GFS2: dlm based r... |
552 553 554 555 556 557 |
fs_info(sdp, "first mount done, others may mount "); if (sdp->sd_lockstruct.ls_ops->lm_first_done) sdp->sd_lockstruct.ls_ops->lm_first_done(sdp); |
f057f6cdf GFS2: Merge lock_... |
558 |
kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp); |
da755fdb4 [GFS2] Remove lm.... |
559 |
} |
b52896813 GFS2: Fix bug in ... |
560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 |
/** * gfs2_jindex_hold - Grab a lock on the jindex * @sdp: The GFS2 superblock * @ji_gh: the holder for the jindex glock * * Returns: errno */ static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh) { struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex); struct qstr name; char buf[20]; struct gfs2_jdesc *jd; int error; name.name = buf; mutex_lock(&sdp->sd_jindex_mutex); for (;;) { error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh); if (error) break; name.len = sprintf(buf, "journal%u", sdp->sd_journals); name.hash = gfs2_disk_hash(name.name, name.len); error = gfs2_dir_check(sdp->sd_jindex, &name, NULL); if (error == -ENOENT) { error = 0; break; } gfs2_glock_dq_uninit(ji_gh); if (error) break; error = -ENOMEM; jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL); if (!jd) break; INIT_LIST_HEAD(&jd->extent_list); |
6ecd7c2dd gfs2: use workque... |
605 |
INIT_WORK(&jd->jd_work, gfs2_recover_func); |
b52896813 GFS2: Fix bug in ... |
606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 |
jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1); if (!jd->jd_inode || IS_ERR(jd->jd_inode)) { if (!jd->jd_inode) error = -ENOENT; else error = PTR_ERR(jd->jd_inode); kfree(jd); break; } spin_lock(&sdp->sd_jindex_spin); jd->jd_jid = sdp->sd_journals++; list_add_tail(&jd->jd_list, &sdp->sd_jindex_list); spin_unlock(&sdp->sd_jindex_spin); } mutex_unlock(&sdp->sd_jindex_mutex); return error; } |
b3b94faa5 [GFS2] The core o... |
626 627 |
static int init_journal(struct gfs2_sbd *sdp, int undo) { |
9b8df98fc GFS2: Fix metafs ... |
628 |
struct inode *master = sdp->sd_master_dir->d_inode; |
b3b94faa5 [GFS2] The core o... |
629 |
struct gfs2_holder ji_gh; |
5c676f6d3 [GFS2] Macros rem... |
630 |
struct gfs2_inode *ip; |
b3b94faa5 [GFS2] The core o... |
631 632 633 634 635 |
int jindex = 1; int error = 0; if (undo) { jindex = 0; |
fe64d517d GFS2: Umount reco... |
636 |
goto fail_jinode_gh; |
b3b94faa5 [GFS2] The core o... |
637 |
} |
9b8df98fc GFS2: Fix metafs ... |
638 |
sdp->sd_jindex = gfs2_lookup_simple(master, "jindex"); |
c752666c1 [GFS2] Fix bug in... |
639 |
if (IS_ERR(sdp->sd_jindex)) { |
b3b94faa5 [GFS2] The core o... |
640 641 |
fs_err(sdp, "can't lookup journal index: %d ", error); |
c752666c1 [GFS2] Fix bug in... |
642 |
return PTR_ERR(sdp->sd_jindex); |
b3b94faa5 [GFS2] The core o... |
643 |
} |
b3b94faa5 [GFS2] The core o... |
644 645 646 647 648 649 650 651 652 |
/* Load in the journal index special file */ error = gfs2_jindex_hold(sdp, &ji_gh); if (error) { fs_err(sdp, "can't read journal index: %d ", error); goto fail; } |
0e5a9fb04 GFS2: Fix error code |
653 |
error = -EUSERS; |
b3b94faa5 [GFS2] The core o... |
654 655 656 |
if (!gfs2_jindex_size(sdp)) { fs_err(sdp, "no journals! "); |
907b9bceb [GFS2/DLM] Fix tr... |
657 |
goto fail_jindex; |
b3b94faa5 [GFS2] The core o... |
658 659 660 661 |
} if (sdp->sd_args.ar_spectator) { sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0); |
fd041f0b4 [GFS2] Use atomic... |
662 |
atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks); |
5e687eac1 GFS2: Various gfs... |
663 664 |
atomic_set(&sdp->sd_log_thresh1, 2*sdp->sd_jdesc->jd_blocks/5); atomic_set(&sdp->sd_log_thresh2, 4*sdp->sd_jdesc->jd_blocks/5); |
b3b94faa5 [GFS2] The core o... |
665 666 667 668 669 670 671 672 673 674 675 676 |
} else { if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) { fs_err(sdp, "can't mount journal #%u ", sdp->sd_lockstruct.ls_jid); fs_err(sdp, "there are only %u journals (0 - %u) ", gfs2_jindex_size(sdp), gfs2_jindex_size(sdp) - 1); goto fail_jindex; } sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid); |
feaa7bba0 [GFS2] Fix unlink... |
677 |
error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid, |
b3b94faa5 [GFS2] The core o... |
678 679 680 681 682 683 684 685 |
&gfs2_journal_glops, LM_ST_EXCLUSIVE, LM_FLAG_NOEXP, &sdp->sd_journal_gh); if (error) { fs_err(sdp, "can't acquire journal glock: %d ", error); goto fail_jindex; } |
feaa7bba0 [GFS2] Fix unlink... |
686 687 |
ip = GFS2_I(sdp->sd_jdesc->jd_inode); error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, |
75be73a82 [GFS2] Ensure jou... |
688 |
LM_FLAG_NOEXP | GL_EXACT | GL_NOCACHE, |
b3b94faa5 [GFS2] The core o... |
689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 |
&sdp->sd_jinode_gh); if (error) { fs_err(sdp, "can't acquire journal inode glock: %d ", error); goto fail_journal_gh; } error = gfs2_jdesc_check(sdp->sd_jdesc); if (error) { fs_err(sdp, "my journal (%u) is bad: %d ", sdp->sd_jdesc->jd_jid, error); goto fail_jinode_gh; } |
fd041f0b4 [GFS2] Use atomic... |
704 |
atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks); |
5e687eac1 GFS2: Various gfs... |
705 706 |
atomic_set(&sdp->sd_log_thresh1, 2*sdp->sd_jdesc->jd_blocks/5); atomic_set(&sdp->sd_log_thresh2, 4*sdp->sd_jdesc->jd_blocks/5); |
da6dd40d5 [GFS2] Journal ex... |
707 708 709 |
/* Map the extents for this journal's blocks */ map_journal_extents(sdp); |
b3b94faa5 [GFS2] The core o... |
710 |
} |
63997775b GFS2: Add tracepo... |
711 |
trace_gfs2_log_blocks(sdp, atomic_read(&sdp->sd_log_blks_free)); |
b3b94faa5 [GFS2] The core o... |
712 713 714 715 |
if (sdp->sd_lockstruct.ls_first) { unsigned int x; for (x = 0; x < sdp->sd_journals; x++) { |
6ecd7c2dd gfs2: use workque... |
716 717 |
error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x), true); |
b3b94faa5 [GFS2] The core o... |
718 719 720 721 722 723 724 |
if (error) { fs_err(sdp, "error recovering journal %u: %d ", x, error); goto fail_jinode_gh; } } |
f057f6cdf GFS2: Merge lock_... |
725 |
gfs2_others_may_mount(sdp); |
b3b94faa5 [GFS2] The core o... |
726 |
} else if (!sdp->sd_args.ar_spectator) { |
6ecd7c2dd gfs2: use workque... |
727 |
error = gfs2_recover_journal(sdp->sd_jdesc, true); |
b3b94faa5 [GFS2] The core o... |
728 729 730 731 732 733 734 735 736 737 |
if (error) { fs_err(sdp, "error recovering my journal: %d ", error); goto fail_jinode_gh; } } set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags); gfs2_glock_dq_uninit(&ji_gh); jindex = 0; |
b3b94faa5 [GFS2] The core o... |
738 |
return 0; |
a91ea69ff [GFS2] Align all ... |
739 |
fail_jinode_gh: |
b3b94faa5 [GFS2] The core o... |
740 741 |
if (!sdp->sd_args.ar_spectator) gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); |
a91ea69ff [GFS2] Align all ... |
742 |
fail_journal_gh: |
b3b94faa5 [GFS2] The core o... |
743 744 |
if (!sdp->sd_args.ar_spectator) gfs2_glock_dq_uninit(&sdp->sd_journal_gh); |
a91ea69ff [GFS2] Align all ... |
745 |
fail_jindex: |
b3b94faa5 [GFS2] The core o... |
746 747 748 |
gfs2_jindex_free(sdp); if (jindex) gfs2_glock_dq_uninit(&ji_gh); |
a91ea69ff [GFS2] Align all ... |
749 |
fail: |
f42faf4fa [GFS2] Add gfs2_i... |
750 |
iput(sdp->sd_jindex); |
b3b94faa5 [GFS2] The core o... |
751 752 |
return error; } |
b3b94faa5 [GFS2] The core o... |
753 754 755 |
static int init_inodes(struct gfs2_sbd *sdp, int undo) { |
b3b94faa5 [GFS2] The core o... |
756 |
int error = 0; |
9b8df98fc GFS2: Fix metafs ... |
757 |
struct inode *master = sdp->sd_master_dir->d_inode; |
b3b94faa5 [GFS2] The core o... |
758 759 |
if (undo) |
f42faf4fa [GFS2] Add gfs2_i... |
760 |
goto fail_qinode; |
f42faf4fa [GFS2] Add gfs2_i... |
761 762 |
error = init_journal(sdp, undo); if (error) |
9b8df98fc GFS2: Fix metafs ... |
763 |
goto fail; |
b3b94faa5 [GFS2] The core o... |
764 |
|
b3b94faa5 [GFS2] The core o... |
765 |
/* Read in the master statfs inode */ |
9b8df98fc GFS2: Fix metafs ... |
766 |
sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs"); |
c752666c1 [GFS2] Fix bug in... |
767 768 |
if (IS_ERR(sdp->sd_statfs_inode)) { error = PTR_ERR(sdp->sd_statfs_inode); |
b3b94faa5 [GFS2] The core o... |
769 770 |
fs_err(sdp, "can't read in statfs inode: %d ", error); |
8d8291ae9 GFS2: Remove no_f... |
771 |
goto fail_journal; |
b3b94faa5 [GFS2] The core o... |
772 773 774 |
} /* Read in the resource index inode */ |
9b8df98fc GFS2: Fix metafs ... |
775 |
sdp->sd_rindex = gfs2_lookup_simple(master, "rindex"); |
c752666c1 [GFS2] Fix bug in... |
776 777 |
if (IS_ERR(sdp->sd_rindex)) { error = PTR_ERR(sdp->sd_rindex); |
b3b94faa5 [GFS2] The core o... |
778 779 780 781 |
fs_err(sdp, "can't get resource index inode: %d ", error); goto fail_statfs; } |
cf45b752c [GFS2] Remove rgr... |
782 |
sdp->sd_rindex_uptodate = 0; |
b3b94faa5 [GFS2] The core o... |
783 784 |
/* Read in the quota inode */ |
9b8df98fc GFS2: Fix metafs ... |
785 |
sdp->sd_quota_inode = gfs2_lookup_simple(master, "quota"); |
c752666c1 [GFS2] Fix bug in... |
786 787 |
if (IS_ERR(sdp->sd_quota_inode)) { error = PTR_ERR(sdp->sd_quota_inode); |
b3b94faa5 [GFS2] The core o... |
788 789 790 791 |
fs_err(sdp, "can't get quota file inode: %d ", error); goto fail_rindex; } |
b3b94faa5 [GFS2] The core o... |
792 |
return 0; |
f42faf4fa [GFS2] Add gfs2_i... |
793 794 |
fail_qinode: iput(sdp->sd_quota_inode); |
f42faf4fa [GFS2] Add gfs2_i... |
795 |
fail_rindex: |
b3b94faa5 [GFS2] The core o... |
796 |
gfs2_clear_rgrpd(sdp); |
f42faf4fa [GFS2] Add gfs2_i... |
797 |
iput(sdp->sd_rindex); |
f42faf4fa [GFS2] Add gfs2_i... |
798 799 |
fail_statfs: iput(sdp->sd_statfs_inode); |
f42faf4fa [GFS2] Add gfs2_i... |
800 801 |
fail_journal: init_journal(sdp, UNDO); |
f42faf4fa [GFS2] Add gfs2_i... |
802 |
fail: |
b3b94faa5 [GFS2] The core o... |
803 804 805 806 807 |
return error; } static int init_per_node(struct gfs2_sbd *sdp, int undo) { |
f42faf4fa [GFS2] Add gfs2_i... |
808 |
struct inode *pn = NULL; |
b3b94faa5 [GFS2] The core o... |
809 810 |
char buf[30]; int error = 0; |
5c676f6d3 [GFS2] Macros rem... |
811 |
struct gfs2_inode *ip; |
9b8df98fc GFS2: Fix metafs ... |
812 |
struct inode *master = sdp->sd_master_dir->d_inode; |
b3b94faa5 [GFS2] The core o... |
813 814 815 816 817 818 |
if (sdp->sd_args.ar_spectator) return 0; if (undo) goto fail_qc_gh; |
9b8df98fc GFS2: Fix metafs ... |
819 |
pn = gfs2_lookup_simple(master, "per_node"); |
c752666c1 [GFS2] Fix bug in... |
820 821 |
if (IS_ERR(pn)) { error = PTR_ERR(pn); |
b3b94faa5 [GFS2] The core o... |
822 823 824 825 |
fs_err(sdp, "can't find per_node directory: %d ", error); return error; } |
b3b94faa5 [GFS2] The core o... |
826 |
sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); |
c752666c1 [GFS2] Fix bug in... |
827 828 829 |
sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); if (IS_ERR(sdp->sd_sc_inode)) { error = PTR_ERR(sdp->sd_sc_inode); |
b3b94faa5 [GFS2] The core o... |
830 831 |
fs_err(sdp, "can't find local \"sc\" file: %d ", error); |
8d8291ae9 GFS2: Remove no_f... |
832 |
goto fail; |
b3b94faa5 [GFS2] The core o... |
833 |
} |
b3b94faa5 [GFS2] The core o... |
834 |
sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); |
c752666c1 [GFS2] Fix bug in... |
835 836 837 |
sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf); if (IS_ERR(sdp->sd_qc_inode)) { error = PTR_ERR(sdp->sd_qc_inode); |
b3b94faa5 [GFS2] The core o... |
838 839 840 841 |
fs_err(sdp, "can't find local \"qc\" file: %d ", error); goto fail_ut_i; } |
f42faf4fa [GFS2] Add gfs2_i... |
842 |
iput(pn); |
b3b94faa5 [GFS2] The core o... |
843 |
pn = NULL; |
feaa7bba0 [GFS2] Fix unlink... |
844 |
ip = GFS2_I(sdp->sd_sc_inode); |
8d8291ae9 GFS2: Remove no_f... |
845 |
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, |
b3b94faa5 [GFS2] The core o... |
846 847 848 849 |
&sdp->sd_sc_gh); if (error) { fs_err(sdp, "can't lock local \"sc\" file: %d ", error); |
8d8291ae9 GFS2: Remove no_f... |
850 |
goto fail_qc_i; |
b3b94faa5 [GFS2] The core o... |
851 |
} |
feaa7bba0 [GFS2] Fix unlink... |
852 |
ip = GFS2_I(sdp->sd_qc_inode); |
8d8291ae9 GFS2: Remove no_f... |
853 |
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, |
b3b94faa5 [GFS2] The core o... |
854 855 856 857 858 859 860 861 |
&sdp->sd_qc_gh); if (error) { fs_err(sdp, "can't lock local \"qc\" file: %d ", error); goto fail_ut_gh; } return 0; |
a91ea69ff [GFS2] Align all ... |
862 |
fail_qc_gh: |
b3b94faa5 [GFS2] The core o... |
863 |
gfs2_glock_dq_uninit(&sdp->sd_qc_gh); |
a91ea69ff [GFS2] Align all ... |
864 |
fail_ut_gh: |
b3b94faa5 [GFS2] The core o... |
865 |
gfs2_glock_dq_uninit(&sdp->sd_sc_gh); |
a91ea69ff [GFS2] Align all ... |
866 |
fail_qc_i: |
f42faf4fa [GFS2] Add gfs2_i... |
867 |
iput(sdp->sd_qc_inode); |
a91ea69ff [GFS2] Align all ... |
868 |
fail_ut_i: |
f42faf4fa [GFS2] Add gfs2_i... |
869 |
iput(sdp->sd_sc_inode); |
a91ea69ff [GFS2] Align all ... |
870 |
fail: |
b3b94faa5 [GFS2] The core o... |
871 |
if (pn) |
f42faf4fa [GFS2] Add gfs2_i... |
872 |
iput(pn); |
b3b94faa5 [GFS2] The core o... |
873 874 875 876 877 878 879 880 881 |
return error; } static int init_threads(struct gfs2_sbd *sdp, int undo) { struct task_struct *p; int error = 0; if (undo) |
feaa7bba0 [GFS2] Fix unlink... |
882 |
goto fail_quotad; |
b3b94faa5 [GFS2] The core o... |
883 |
|
b3b94faa5 [GFS2] The core o... |
884 885 886 887 888 889 890 891 |
p = kthread_run(gfs2_logd, sdp, "gfs2_logd"); error = IS_ERR(p); if (error) { fs_err(sdp, "can't start logd thread: %d ", error); return error; } sdp->sd_logd_process = p; |
b3b94faa5 [GFS2] The core o... |
892 893 894 895 896 897 898 899 |
p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad"); error = IS_ERR(p); if (error) { fs_err(sdp, "can't start quotad thread: %d ", error); goto fail; } sdp->sd_quotad_process = p; |
b3b94faa5 [GFS2] The core o... |
900 |
return 0; |
b3b94faa5 [GFS2] The core o... |
901 |
|
feaa7bba0 [GFS2] Fix unlink... |
902 |
fail_quotad: |
b3b94faa5 [GFS2] The core o... |
903 |
kthread_stop(sdp->sd_quotad_process); |
feaa7bba0 [GFS2] Fix unlink... |
904 |
fail: |
b3b94faa5 [GFS2] The core o... |
905 |
kthread_stop(sdp->sd_logd_process); |
b3b94faa5 [GFS2] The core o... |
906 907 |
return error; } |
da755fdb4 [GFS2] Remove lm.... |
908 |
|
f057f6cdf GFS2: Merge lock_... |
909 910 911 912 913 914 915 916 |
static const match_table_t nolock_tokens = { { Opt_jid, "jid=%d ", }, { Opt_err, NULL }, }; static const struct lm_lockops nolock_ops = { .lm_proto_name = "lock_nolock", |
fc0e38dae GFS2: Fix glock d... |
917 |
.lm_put_lock = gfs2_glock_free, |
f057f6cdf GFS2: Merge lock_... |
918 919 |
.lm_tokens = &nolock_tokens, }; |
da755fdb4 [GFS2] Remove lm.... |
920 921 922 |
/** * gfs2_lm_mount - mount a locking protocol * @sdp: the filesystem |
3ad2f3fbb tree-wide: Assort... |
923 |
* @args: mount arguments |
da755fdb4 [GFS2] Remove lm.... |
924 925 926 927 928 929 930 |
* @silent: if 1, don't complain if the FS isn't a GFS2 fs * * Returns: errno */ static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent) { |
f057f6cdf GFS2: Merge lock_... |
931 932 933 934 935 |
const struct lm_lockops *lm; struct lm_lockstruct *ls = &sdp->sd_lockstruct; struct gfs2_args *args = &sdp->sd_args; const char *proto = sdp->sd_proto_name; const char *table = sdp->sd_table_name; |
f057f6cdf GFS2: Merge lock_... |
936 937 |
char *o, *options; int ret; |
da755fdb4 [GFS2] Remove lm.... |
938 |
|
f057f6cdf GFS2: Merge lock_... |
939 940 941 |
if (!strcmp("lock_nolock", proto)) { lm = &nolock_ops; sdp->sd_args.ar_localflocks = 1; |
f057f6cdf GFS2: Merge lock_... |
942 943 944 945 946 947 948 949 950 |
#ifdef CONFIG_GFS2_FS_LOCKING_DLM } else if (!strcmp("lock_dlm", proto)) { lm = &gfs2_dlm_ops; #endif } else { printk(KERN_INFO "GFS2: can't find protocol %s ", proto); return -ENOENT; } |
da755fdb4 [GFS2] Remove lm.... |
951 952 953 |
fs_info(sdp, "Trying to join cluster \"%s\", \"%s\" ", proto, table); |
f057f6cdf GFS2: Merge lock_... |
954 955 |
ls->ls_ops = lm; ls->ls_first = 1; |
da755fdb4 [GFS2] Remove lm.... |
956 |
|
f057f6cdf GFS2: Merge lock_... |
957 958 959 960 961 962 963 964 965 966 967 968 969 |
for (options = args->ar_hostdata; (o = strsep(&options, ":")); ) { substring_t tmp[MAX_OPT_ARGS]; int token, option; if (!o || !*o) continue; token = match_token(o, *lm->lm_tokens, tmp); switch (token) { case Opt_jid: ret = match_int(&tmp[0], &option); if (ret || option < 0) goto hostdata_error; |
ba6e93645 GFS2: Wait for jo... |
970 971 |
if (test_and_clear_bit(SDF_NOJOURNALID, &sdp->sd_flags)) ls->ls_jid = option; |
f057f6cdf GFS2: Merge lock_... |
972 973 |
break; case Opt_id: |
2b88f7c53 GFS2: Remove unus... |
974 |
/* Obsolete, but left for backward compat purposes */ |
f057f6cdf GFS2: Merge lock_... |
975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 |
break; case Opt_first: ret = match_int(&tmp[0], &option); if (ret || (option != 0 && option != 1)) goto hostdata_error; ls->ls_first = option; break; case Opt_nodir: ret = match_int(&tmp[0], &option); if (ret || (option != 0 && option != 1)) goto hostdata_error; ls->ls_nodir = option; break; case Opt_err: default: hostdata_error: fs_info(sdp, "unknown hostdata (%s) ", o); return -EINVAL; } |
da755fdb4 [GFS2] Remove lm.... |
995 |
} |
f057f6cdf GFS2: Merge lock_... |
996 997 998 |
if (lm->lm_mount == NULL) { fs_info(sdp, "Now mounting FS... "); |
192370399 GFS2: Fix mount h... |
999 |
complete_all(&sdp->sd_locking_init); |
f057f6cdf GFS2: Merge lock_... |
1000 |
return 0; |
da755fdb4 [GFS2] Remove lm.... |
1001 |
} |
e0c2a9aa1 GFS2: dlm based r... |
1002 |
ret = lm->lm_mount(sdp, table); |
f057f6cdf GFS2: Merge lock_... |
1003 1004 1005 |
if (ret == 0) fs_info(sdp, "Joined cluster. Now mounting FS... "); |
192370399 GFS2: Fix mount h... |
1006 |
complete_all(&sdp->sd_locking_init); |
f057f6cdf GFS2: Merge lock_... |
1007 |
return ret; |
da755fdb4 [GFS2] Remove lm.... |
1008 1009 1010 1011 |
} void gfs2_lm_unmount(struct gfs2_sbd *sdp) { |
f057f6cdf GFS2: Merge lock_... |
1012 1013 1014 1015 |
const struct lm_lockops *lm = sdp->sd_lockstruct.ls_ops; if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) && lm->lm_unmount) lm->lm_unmount(sdp); |
da755fdb4 [GFS2] Remove lm.... |
1016 |
} |
b3b94faa5 [GFS2] The core o... |
1017 |
|
ba6e93645 GFS2: Wait for jo... |
1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 |
static int gfs2_journalid_wait(void *word) { if (signal_pending(current)) return -EINTR; schedule(); return 0; } static int wait_on_journal(struct gfs2_sbd *sdp) { |
ba6e93645 GFS2: Wait for jo... |
1028 1029 1030 1031 1032 |
if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) return 0; return wait_on_bit(&sdp->sd_flags, SDF_NOJOURNALID, gfs2_journalid_wait, TASK_INTERRUPTIBLE); } |
8633ecfab GFS2: Add online ... |
1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 |
void gfs2_online_uevent(struct gfs2_sbd *sdp) { struct super_block *sb = sdp->sd_vfs; char ro[20]; char spectator[20]; char *envp[] = { ro, spectator, NULL }; sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0); sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0); kobject_uevent_env(&sdp->sd_kobj, KOBJ_ONLINE, envp); } |
b3b94faa5 [GFS2] The core o... |
1043 1044 1045 1046 1047 1048 1049 1050 |
/** * fill_super - Read in superblock * @sb: The VFS superblock * @data: Mount options * @silent: Don't complain if it's not a GFS2 filesystem * * Returns: errno */ |
f55073ff1 GFS2: Fix -o meta... |
1051 |
static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent) |
b3b94faa5 [GFS2] The core o... |
1052 1053 1054 1055 1056 1057 1058 |
{ struct gfs2_sbd *sdp; struct gfs2_holder mount_gh; int error; sdp = init_sbd(sb); if (!sdp) { |
d92a8d480 [GFS2] Audit prin... |
1059 1060 |
printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd "); |
b3b94faa5 [GFS2] The core o... |
1061 1062 |
return -ENOMEM; } |
f55073ff1 GFS2: Fix -o meta... |
1063 |
sdp->sd_args = *args; |
b3b94faa5 [GFS2] The core o... |
1064 |
|
fe64d517d GFS2: Umount reco... |
1065 |
if (sdp->sd_args.ar_spectator) { |
6f04c1c7f GFS2: Fix remount... |
1066 |
sb->s_flags |= MS_RDONLY; |
e8ca5cc57 GFS2: let spectat... |
1067 |
set_bit(SDF_RORECOVERY, &sdp->sd_flags); |
fe64d517d GFS2: Umount reco... |
1068 |
} |
6f04c1c7f GFS2: Fix remount... |
1069 1070 |
if (sdp->sd_args.ar_posix_acl) sb->s_flags |= MS_POSIXACL; |
f25934c5f GFS2: add barrier... |
1071 1072 |
if (sdp->sd_args.ar_nobarrier) set_bit(SDF_NOBARRIERS, &sdp->sd_flags); |
6f04c1c7f GFS2: Fix remount... |
1073 |
|
9964afbb7 GFS2: Add S_NOSEC... |
1074 |
sb->s_flags |= MS_NOSEC; |
719ee3446 GFS2: high time t... |
1075 1076 |
sb->s_magic = GFS2_MAGIC; sb->s_op = &gfs2_super_ops; |
41ced6dcf switch gfs2, clos... |
1077 |
sb->s_d_op = &gfs2_dops; |
719ee3446 GFS2: high time t... |
1078 |
sb->s_export_op = &gfs2_export_ops; |
40b78a322 GFS2: Clean up of... |
1079 |
sb->s_xattr = gfs2_xattr_handlers; |
cc632e7f9 GFS2: Hook gfs2_q... |
1080 1081 |
sb->s_qcop = &gfs2_quotactl_ops; sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE; |
719ee3446 GFS2: high time t... |
1082 1083 |
sb->s_time_gran = 1; sb->s_maxbytes = MAX_LFS_FILESIZE; |
419c93e0b [GFS2] Add gfs2me... |
1084 1085 1086 1087 1088 1089 1090 1091 |
/* Set up the buffer cache and fill in some fake block size values to allow us to read-in the on-disk superblock. */ sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK); sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT; sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; |
b3b94faa5 [GFS2] The core o... |
1092 |
|
5e687eac1 GFS2: Various gfs... |
1093 |
sdp->sd_tune.gt_logd_secs = sdp->sd_args.ar_commit; |
3d3c10f2c GFS2: Improve sta... |
1094 1095 1096 1097 |
sdp->sd_tune.gt_quota_quantum = sdp->sd_args.ar_quota_quantum; if (sdp->sd_args.ar_statfs_quantum) { sdp->sd_tune.gt_statfs_slow = 0; sdp->sd_tune.gt_statfs_quantum = sdp->sd_args.ar_statfs_quantum; |
32e471ef1 GFS2: Use UUID fi... |
1098 |
} else { |
3d3c10f2c GFS2: Improve sta... |
1099 1100 1101 |
sdp->sd_tune.gt_statfs_slow = 1; sdp->sd_tune.gt_statfs_quantum = 30; } |
48c2b6136 GFS2: Add commit=... |
1102 |
|
b3b94faa5 [GFS2] The core o... |
1103 1104 1105 |
error = init_names(sdp, silent); if (error) goto fail; |
e0c2a9aa1 GFS2: dlm based r... |
1106 |
snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s", sdp->sd_table_name); |
7c52b166c [GFS2] Add gfs2_t... |
1107 |
gfs2_create_debugfs_file(sdp); |
b3b94faa5 [GFS2] The core o... |
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 |
error = gfs2_sys_fs_add(sdp); if (error) goto fail; error = gfs2_lm_mount(sdp, silent); if (error) goto fail_sys; error = init_locking(sdp, &mount_gh, DO); if (error) goto fail_lm; |
9b8df98fc GFS2: Fix metafs ... |
1119 |
error = init_sb(sdp, silent); |
b3b94faa5 [GFS2] The core o... |
1120 1121 |
if (error) goto fail_locking; |
b3b94faa5 [GFS2] The core o... |
1122 |
|
ba6e93645 GFS2: Wait for jo... |
1123 1124 1125 |
error = wait_on_journal(sdp); if (error) goto fail_sb; |
feb47ca93 GFS2: Improve jou... |
1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 |
/* * If user space has failed to join the cluster or some similar * failure has occurred, then the journal id will contain a * negative (error) number. This will then be returned to the * caller (of the mount syscall). We do this even for spectator * mounts (which just write a jid of 0 to indicate "ok" even though * the jid is unused in the spectator case) */ if (sdp->sd_lockstruct.ls_jid < 0) { error = sdp->sd_lockstruct.ls_jid; sdp->sd_lockstruct.ls_jid = 0; goto fail_sb; } |
e0c2a9aa1 GFS2: dlm based r... |
1139 1140 1141 1142 1143 1144 |
if (sdp->sd_args.ar_spectator) snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.s", sdp->sd_table_name); else snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.%u", sdp->sd_table_name, sdp->sd_lockstruct.ls_jid); |
b3b94faa5 [GFS2] The core o... |
1145 1146 |
error = init_inodes(sdp, DO); if (error) |
f42faf4fa [GFS2] Add gfs2_i... |
1147 |
goto fail_sb; |
b3b94faa5 [GFS2] The core o... |
1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 |
error = init_per_node(sdp, DO); if (error) goto fail_inodes; error = gfs2_statfs_init(sdp); if (error) { fs_err(sdp, "can't initialize statfs subsystem: %d ", error); goto fail_per_node; } error = init_threads(sdp, DO); if (error) goto fail_per_node; if (!(sb->s_flags & MS_RDONLY)) { error = gfs2_make_fs_rw(sdp); if (error) { fs_err(sdp, "can't make FS RW: %d ", error); goto fail_threads; } } gfs2_glock_dq_uninit(&mount_gh); |
8633ecfab GFS2: Add online ... |
1174 |
gfs2_online_uevent(sdp); |
b3b94faa5 [GFS2] The core o... |
1175 |
return 0; |
a91ea69ff [GFS2] Align all ... |
1176 |
fail_threads: |
b3b94faa5 [GFS2] The core o... |
1177 |
init_threads(sdp, UNDO); |
a91ea69ff [GFS2] Align all ... |
1178 |
fail_per_node: |
b3b94faa5 [GFS2] The core o... |
1179 |
init_per_node(sdp, UNDO); |
a91ea69ff [GFS2] Align all ... |
1180 |
fail_inodes: |
b3b94faa5 [GFS2] The core o... |
1181 |
init_inodes(sdp, UNDO); |
a91ea69ff [GFS2] Align all ... |
1182 |
fail_sb: |
9b8df98fc GFS2: Fix metafs ... |
1183 1184 1185 1186 |
if (sdp->sd_root_dir) dput(sdp->sd_root_dir); if (sdp->sd_master_dir) dput(sdp->sd_master_dir); |
e7c8707ea GFS2: Fix error p... |
1187 1188 |
if (sb->s_root) dput(sb->s_root); |
9b8df98fc GFS2: Fix metafs ... |
1189 |
sb->s_root = NULL; |
a91ea69ff [GFS2] Align all ... |
1190 |
fail_locking: |
b3b94faa5 [GFS2] The core o... |
1191 |
init_locking(sdp, &mount_gh, UNDO); |
a91ea69ff [GFS2] Align all ... |
1192 |
fail_lm: |
fefc03bfe Revert "GFS2: Fix... |
1193 |
gfs2_gl_hash_clear(sdp); |
b3b94faa5 [GFS2] The core o... |
1194 |
gfs2_lm_unmount(sdp); |
a91ea69ff [GFS2] Align all ... |
1195 |
fail_sys: |
b3b94faa5 [GFS2] The core o... |
1196 |
gfs2_sys_fs_del(sdp); |
a91ea69ff [GFS2] Align all ... |
1197 |
fail: |
5f8820960 [GFS2] lockdump i... |
1198 |
gfs2_delete_debugfs_file(sdp); |
a2c458079 [GFS2] vfree shou... |
1199 |
kfree(sdp); |
5c676f6d3 [GFS2] Macros rem... |
1200 |
sb->s_fs_info = NULL; |
b3b94faa5 [GFS2] The core o... |
1201 1202 |
return error; } |
f55073ff1 GFS2: Fix -o meta... |
1203 |
static int set_gfs2_super(struct super_block *s, void *data) |
b3b94faa5 [GFS2] The core o... |
1204 |
{ |
f55073ff1 GFS2: Fix -o meta... |
1205 1206 1207 1208 1209 1210 1211 1212 1213 |
s->s_bdev = data; s->s_dev = s->s_bdev->bd_dev; /* * We set the bdi here to the queue backing, file systems can * overwrite this in ->fill_super() */ s->s_bdi = &bdev_get_queue(s->s_bdev)->backing_dev_info; return 0; |
863846054 [GFS2] Allow moun... |
1214 |
} |
f55073ff1 GFS2: Fix -o meta... |
1215 |
static int test_gfs2_super(struct super_block *s, void *ptr) |
f6d03139d GFS2: Fix locking... |
1216 1217 1218 1219 |
{ struct block_device *bdev = ptr; return (bdev == s->s_bdev); } |
f55073ff1 GFS2: Fix -o meta... |
1220 |
/** |
8bcbbf000 convert gfs2 |
1221 |
* gfs2_mount - Get the GFS2 superblock |
f55073ff1 GFS2: Fix -o meta... |
1222 1223 1224 1225 |
* @fs_type: The GFS2 filesystem type * @flags: Mount flags * @dev_name: The name of the device * @data: The mount arguments |
f55073ff1 GFS2: Fix -o meta... |
1226 1227 1228 1229 1230 1231 1232 |
* * Q. Why not use get_sb_bdev() ? * A. We need to select one of two root directories to mount, independent * of whether this is the initial, or subsequent, mount of this sb * * Returns: 0 or -ve on error */ |
8bcbbf000 convert gfs2 |
1233 1234 |
static struct dentry *gfs2_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) |
f55073ff1 GFS2: Fix -o meta... |
1235 1236 1237 |
{ struct block_device *bdev; struct super_block *s; |
d4d776299 block: clean up b... |
1238 |
fmode_t mode = FMODE_READ | FMODE_EXCL; |
f55073ff1 GFS2: Fix -o meta... |
1239 1240 1241 1242 1243 1244 |
int error; struct gfs2_args args; struct gfs2_sbd *sdp; if (!(flags & MS_RDONLY)) mode |= FMODE_WRITE; |
d4d776299 block: clean up b... |
1245 |
bdev = blkdev_get_by_path(dev_name, mode, fs_type); |
f55073ff1 GFS2: Fix -o meta... |
1246 |
if (IS_ERR(bdev)) |
8bcbbf000 convert gfs2 |
1247 |
return ERR_CAST(bdev); |
f55073ff1 GFS2: Fix -o meta... |
1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 |
/* * once the super is inserted into the list by sget, s_umount * will protect the lockfs code from trying to start a snapshot * while we are mounting */ mutex_lock(&bdev->bd_fsfreeze_mutex); if (bdev->bd_fsfreeze_count > 0) { mutex_unlock(&bdev->bd_fsfreeze_mutex); error = -EBUSY; goto error_bdev; } s = sget(fs_type, test_gfs2_super, set_gfs2_super, bdev); mutex_unlock(&bdev->bd_fsfreeze_mutex); error = PTR_ERR(s); if (IS_ERR(s)) goto error_bdev; |
8bcbbf000 convert gfs2 |
1265 |
if (s->s_root) |
d4d776299 block: clean up b... |
1266 |
blkdev_put(bdev, mode); |
8bcbbf000 convert gfs2 |
1267 |
|
f55073ff1 GFS2: Fix -o meta... |
1268 1269 1270 |
memset(&args, 0, sizeof(args)); args.ar_quota = GFS2_QUOTA_DEFAULT; args.ar_data = GFS2_DATA_DEFAULT; |
5e687eac1 GFS2: Various gfs... |
1271 |
args.ar_commit = 30; |
3d3c10f2c GFS2: Improve sta... |
1272 1273 |
args.ar_statfs_quantum = 30; args.ar_quota_quantum = 60; |
f55073ff1 GFS2: Fix -o meta... |
1274 1275 1276 1277 1278 1279 |
args.ar_errors = GFS2_ERRORS_DEFAULT; error = gfs2_mount_args(&args, data); if (error) { printk(KERN_WARNING "GFS2: can't parse mount arguments "); |
8bcbbf000 convert gfs2 |
1280 |
goto error_super; |
f55073ff1 GFS2: Fix -o meta... |
1281 1282 1283 1284 1285 1286 |
} if (s->s_root) { error = -EBUSY; if ((flags ^ s->s_flags) & MS_RDONLY) goto error_super; |
f55073ff1 GFS2: Fix -o meta... |
1287 1288 1289 1290 1291 1292 1293 1294 |
} else { char b[BDEVNAME_SIZE]; s->s_flags = flags; s->s_mode = mode; strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id)); sb_set_blocksize(s, block_size(bdev)); error = fill_super(s, &args, flags & MS_SILENT ? 1 : 0); |
8bcbbf000 convert gfs2 |
1295 1296 |
if (error) goto error_super; |
f55073ff1 GFS2: Fix -o meta... |
1297 1298 1299 1300 1301 |
s->s_flags |= MS_ACTIVE; bdev->bd_super = s; } sdp = s->s_fs_info; |
f55073ff1 GFS2: Fix -o meta... |
1302 |
if (args.ar_meta) |
8bcbbf000 convert gfs2 |
1303 |
return dget(sdp->sd_master_dir); |
f55073ff1 GFS2: Fix -o meta... |
1304 |
else |
8bcbbf000 convert gfs2 |
1305 |
return dget(sdp->sd_root_dir); |
f55073ff1 GFS2: Fix -o meta... |
1306 1307 1308 |
error_super: deactivate_locked_super(s); |
8bcbbf000 convert gfs2 |
1309 |
return ERR_PTR(error); |
f55073ff1 GFS2: Fix -o meta... |
1310 |
error_bdev: |
d4d776299 block: clean up b... |
1311 |
blkdev_put(bdev, mode); |
8bcbbf000 convert gfs2 |
1312 |
return ERR_PTR(error); |
f55073ff1 GFS2: Fix -o meta... |
1313 |
} |
f6d03139d GFS2: Fix locking... |
1314 1315 1316 1317 |
static int set_meta_super(struct super_block *s, void *ptr) { return -EINVAL; } |
8bcbbf000 convert gfs2 |
1318 1319 |
static struct dentry *gfs2_mount_meta(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) |
863846054 [GFS2] Allow moun... |
1320 |
{ |
f6d03139d GFS2: Fix locking... |
1321 |
struct super_block *s; |
003dec891 GFS2: Merge gfs2_... |
1322 |
struct gfs2_sbd *sdp; |
e24977d45 Reduce path_looku... |
1323 |
struct path path; |
863846054 [GFS2] Allow moun... |
1324 |
int error; |
907b9bceb [GFS2/DLM] Fix tr... |
1325 |
|
e24977d45 Reduce path_looku... |
1326 |
error = kern_path(dev_name, LOOKUP_FOLLOW, &path); |
863846054 [GFS2] Allow moun... |
1327 |
if (error) { |
9b8df98fc GFS2: Fix metafs ... |
1328 1329 1330 |
printk(KERN_WARNING "GFS2: path_lookup on %s returned error %d ", dev_name, error); |
8bcbbf000 convert gfs2 |
1331 |
return ERR_PTR(error); |
863846054 [GFS2] Allow moun... |
1332 |
} |
f55073ff1 GFS2: Fix -o meta... |
1333 |
s = sget(&gfs2_fs_type, test_gfs2_super, set_meta_super, |
f6d03139d GFS2: Fix locking... |
1334 |
path.dentry->d_inode->i_sb->s_bdev); |
e24977d45 Reduce path_looku... |
1335 |
path_put(&path); |
f6d03139d GFS2: Fix locking... |
1336 |
if (IS_ERR(s)) { |
863846054 [GFS2] Allow moun... |
1337 1338 |
printk(KERN_WARNING "GFS2: gfs2 mount does not exist "); |
8bcbbf000 convert gfs2 |
1339 |
return ERR_CAST(s); |
863846054 [GFS2] Allow moun... |
1340 |
} |
f55073ff1 GFS2: Fix -o meta... |
1341 1342 |
if ((flags ^ s->s_flags) & MS_RDONLY) { deactivate_locked_super(s); |
8bcbbf000 convert gfs2 |
1343 |
return ERR_PTR(-EBUSY); |
f55073ff1 GFS2: Fix -o meta... |
1344 |
} |
f6d03139d GFS2: Fix locking... |
1345 |
sdp = s->s_fs_info; |
8bcbbf000 convert gfs2 |
1346 |
return dget(sdp->sd_master_dir); |
b3b94faa5 [GFS2] The core o... |
1347 |
} |
419c93e0b [GFS2] Add gfs2me... |
1348 1349 |
static void gfs2_kill_sb(struct super_block *sb) { |
863846054 [GFS2] Allow moun... |
1350 |
struct gfs2_sbd *sdp = sb->s_fs_info; |
88a19ad06 GFS2: Fix use-aft... |
1351 1352 1353 1354 |
if (sdp == NULL) { kill_block_super(sb); return; |
3af165ac4 GFS2: Fix use-aft... |
1355 |
} |
88a19ad06 GFS2: Fix use-aft... |
1356 1357 1358 1359 1360 1361 |
gfs2_meta_syncfs(sdp); dput(sdp->sd_root_dir); dput(sdp->sd_master_dir); sdp->sd_root_dir = NULL; sdp->sd_master_dir = NULL; |
fefc03bfe Revert "GFS2: Fix... |
1362 |
shrink_dcache_sb(sb); |
9b8df98fc GFS2: Fix metafs ... |
1363 |
kill_block_super(sb); |
88a19ad06 GFS2: Fix use-aft... |
1364 1365 |
gfs2_delete_debugfs_file(sdp); kfree(sdp); |
863846054 [GFS2] Allow moun... |
1366 |
} |
b3b94faa5 [GFS2] The core o... |
1367 1368 1369 |
struct file_system_type gfs2_fs_type = { .name = "gfs2", .fs_flags = FS_REQUIRES_DEV, |
8bcbbf000 convert gfs2 |
1370 |
.mount = gfs2_mount, |
419c93e0b [GFS2] Add gfs2me... |
1371 1372 1373 1374 1375 1376 1377 |
.kill_sb = gfs2_kill_sb, .owner = THIS_MODULE, }; struct file_system_type gfs2meta_fs_type = { .name = "gfs2meta", .fs_flags = FS_REQUIRES_DEV, |
8bcbbf000 convert gfs2 |
1378 |
.mount = gfs2_mount_meta, |
b3b94faa5 [GFS2] The core o... |
1379 1380 |
.owner = THIS_MODULE, }; |