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fs/ocfs2/quota_local.c
35.8 KB
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/* * Implementation of operations over local quota file */ #include <linux/fs.h> |
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#include <linux/slab.h> |
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#include <linux/quota.h> #include <linux/quotaops.h> #include <linux/module.h> |
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#include <cluster/masklog.h> #include "ocfs2_fs.h" #include "ocfs2.h" #include "inode.h" #include "alloc.h" #include "file.h" #include "buffer_head_io.h" #include "journal.h" #include "sysfile.h" #include "dlmglue.h" #include "quota.h" |
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#include "uptodate.h" |
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#include "super.h" |
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#include "ocfs2_trace.h" |
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/* Number of local quota structures per block */ static inline unsigned int ol_quota_entries_per_block(struct super_block *sb) { return ((sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE) / sizeof(struct ocfs2_local_disk_dqblk)); } /* Number of blocks with entries in one chunk */ static inline unsigned int ol_chunk_blocks(struct super_block *sb) { return ((sb->s_blocksize - sizeof(struct ocfs2_local_disk_chunk) - OCFS2_QBLK_RESERVED_SPACE) << 3) / ol_quota_entries_per_block(sb); } /* Number of entries in a chunk bitmap */ static unsigned int ol_chunk_entries(struct super_block *sb) { return ol_chunk_blocks(sb) * ol_quota_entries_per_block(sb); } /* Offset of the chunk in quota file */ static unsigned int ol_quota_chunk_block(struct super_block *sb, int c) { /* 1 block for local quota file info, 1 block per chunk for chunk info */ return 1 + (ol_chunk_blocks(sb) + 1) * c; } |
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static unsigned int ol_dqblk_block(struct super_block *sb, int c, int off) { int epb = ol_quota_entries_per_block(sb); return ol_quota_chunk_block(sb, c) + 1 + off / epb; } static unsigned int ol_dqblk_block_off(struct super_block *sb, int c, int off) |
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{ int epb = ol_quota_entries_per_block(sb); |
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return (off % epb) * sizeof(struct ocfs2_local_disk_dqblk); } /* Offset of the dquot structure in the quota file */ static loff_t ol_dqblk_off(struct super_block *sb, int c, int off) { return (ol_dqblk_block(sb, c, off) << sb->s_blocksize_bits) + ol_dqblk_block_off(sb, c, off); |
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} /* Compute block number from given offset */ static inline unsigned int ol_dqblk_file_block(struct super_block *sb, loff_t off) { return off >> sb->s_blocksize_bits; } static inline unsigned int ol_dqblk_block_offset(struct super_block *sb, loff_t off) { return off & ((1 << sb->s_blocksize_bits) - 1); } /* Compute offset in the chunk of a structure with the given offset */ static int ol_dqblk_chunk_off(struct super_block *sb, int c, loff_t off) { int epb = ol_quota_entries_per_block(sb); return ((off >> sb->s_blocksize_bits) - ol_quota_chunk_block(sb, c) - 1) * epb + ((unsigned int)(off & ((1 << sb->s_blocksize_bits) - 1))) / sizeof(struct ocfs2_local_disk_dqblk); } /* Write bufferhead into the fs */ static int ocfs2_modify_bh(struct inode *inode, struct buffer_head *bh, void (*modify)(struct buffer_head *, void *), void *private) { struct super_block *sb = inode->i_sb; handle_t *handle; int status; |
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handle = ocfs2_start_trans(OCFS2_SB(sb), OCFS2_QUOTA_BLOCK_UPDATE_CREDITS); |
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if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); return status; } |
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status = ocfs2_journal_access_dq(handle, INODE_CACHE(inode), bh, |
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OCFS2_JOURNAL_ACCESS_WRITE); |
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if (status < 0) { mlog_errno(status); ocfs2_commit_trans(OCFS2_SB(sb), handle); return status; } lock_buffer(bh); modify(bh, private); unlock_buffer(bh); |
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ocfs2_journal_dirty(handle, bh); |
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status = ocfs2_commit_trans(OCFS2_SB(sb), handle); if (status < 0) { mlog_errno(status); return status; } return 0; } |
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/* * Read quota block from a given logical offset. * * This function acquires ip_alloc_sem and thus it must not be called with a * transaction started. */ static int ocfs2_read_quota_block(struct inode *inode, u64 v_block, struct buffer_head **bh) { int rc = 0; struct buffer_head *tmp = *bh; if (i_size_read(inode) >> inode->i_sb->s_blocksize_bits <= v_block) { ocfs2_error(inode->i_sb, "Quota file %llu is probably corrupted! Requested " "to read block %Lu but file has size only %Lu ", (unsigned long long)OCFS2_I(inode)->ip_blkno, (unsigned long long)v_block, (unsigned long long)i_size_read(inode)); return -EIO; } rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0, ocfs2_validate_quota_block); if (rc) mlog_errno(rc); /* If ocfs2_read_virt_blocks() got us a new bh, pass it up. */ if (!rc && !*bh) *bh = tmp; return rc; } |
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/* Check whether we understand format of quota files */ static int ocfs2_local_check_quota_file(struct super_block *sb, int type) { unsigned int lmagics[MAXQUOTAS] = OCFS2_LOCAL_QMAGICS; unsigned int lversions[MAXQUOTAS] = OCFS2_LOCAL_QVERSIONS; unsigned int gmagics[MAXQUOTAS] = OCFS2_GLOBAL_QMAGICS; unsigned int gversions[MAXQUOTAS] = OCFS2_GLOBAL_QVERSIONS; unsigned int ino[MAXQUOTAS] = { USER_QUOTA_SYSTEM_INODE, GROUP_QUOTA_SYSTEM_INODE }; |
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struct buffer_head *bh = NULL; |
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struct inode *linode = sb_dqopt(sb)->files[type]; struct inode *ginode = NULL; struct ocfs2_disk_dqheader *dqhead; int status, ret = 0; /* First check whether we understand local quota file */ |
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status = ocfs2_read_quota_block(linode, 0, &bh); if (status) { |
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mlog_errno(status); mlog(ML_ERROR, "failed to read quota file header (type=%d) ", type); goto out_err; } dqhead = (struct ocfs2_disk_dqheader *)(bh->b_data); if (le32_to_cpu(dqhead->dqh_magic) != lmagics[type]) { mlog(ML_ERROR, "quota file magic does not match (%u != %u)," " type=%d ", le32_to_cpu(dqhead->dqh_magic), lmagics[type], type); goto out_err; } if (le32_to_cpu(dqhead->dqh_version) != lversions[type]) { mlog(ML_ERROR, "quota file version does not match (%u != %u)," " type=%d ", le32_to_cpu(dqhead->dqh_version), lversions[type], type); goto out_err; } brelse(bh); bh = NULL; /* Next check whether we understand global quota file */ ginode = ocfs2_get_system_file_inode(OCFS2_SB(sb), ino[type], OCFS2_INVALID_SLOT); if (!ginode) { mlog(ML_ERROR, "cannot get global quota file inode " "(type=%d) ", type); goto out_err; } /* Since the header is read only, we don't care about locking */ |
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status = ocfs2_read_quota_block(ginode, 0, &bh); if (status) { |
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mlog_errno(status); mlog(ML_ERROR, "failed to read global quota file header " "(type=%d) ", type); goto out_err; } dqhead = (struct ocfs2_disk_dqheader *)(bh->b_data); if (le32_to_cpu(dqhead->dqh_magic) != gmagics[type]) { mlog(ML_ERROR, "global quota file magic does not match " "(%u != %u), type=%d ", le32_to_cpu(dqhead->dqh_magic), gmagics[type], type); goto out_err; } if (le32_to_cpu(dqhead->dqh_version) != gversions[type]) { mlog(ML_ERROR, "global quota file version does not match " "(%u != %u), type=%d ", le32_to_cpu(dqhead->dqh_version), gversions[type], type); goto out_err; } ret = 1; out_err: brelse(bh); iput(ginode); return ret; } /* Release given list of quota file chunks */ static void ocfs2_release_local_quota_bitmaps(struct list_head *head) { struct ocfs2_quota_chunk *pos, *next; list_for_each_entry_safe(pos, next, head, qc_chunk) { list_del(&pos->qc_chunk); brelse(pos->qc_headerbh); kmem_cache_free(ocfs2_qf_chunk_cachep, pos); } } /* Load quota bitmaps into memory */ static int ocfs2_load_local_quota_bitmaps(struct inode *inode, struct ocfs2_local_disk_dqinfo *ldinfo, struct list_head *head) { struct ocfs2_quota_chunk *newchunk; int i, status; INIT_LIST_HEAD(head); for (i = 0; i < le32_to_cpu(ldinfo->dqi_chunks); i++) { newchunk = kmem_cache_alloc(ocfs2_qf_chunk_cachep, GFP_NOFS); if (!newchunk) { ocfs2_release_local_quota_bitmaps(head); return -ENOMEM; } newchunk->qc_num = i; |
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newchunk->qc_headerbh = NULL; status = ocfs2_read_quota_block(inode, |
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ol_quota_chunk_block(inode->i_sb, i), |
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&newchunk->qc_headerbh); if (status) { |
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mlog_errno(status); kmem_cache_free(ocfs2_qf_chunk_cachep, newchunk); ocfs2_release_local_quota_bitmaps(head); return status; } list_add_tail(&newchunk->qc_chunk, head); } return 0; } static void olq_update_info(struct buffer_head *bh, void *private) { struct mem_dqinfo *info = private; struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv; struct ocfs2_local_disk_dqinfo *ldinfo; ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data + OCFS2_LOCAL_INFO_OFF); spin_lock(&dq_data_lock); ldinfo->dqi_flags = cpu_to_le32(info->dqi_flags & DQF_MASK); ldinfo->dqi_chunks = cpu_to_le32(oinfo->dqi_chunks); ldinfo->dqi_blocks = cpu_to_le32(oinfo->dqi_blocks); spin_unlock(&dq_data_lock); } |
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static int ocfs2_add_recovery_chunk(struct super_block *sb, struct ocfs2_local_disk_chunk *dchunk, int chunk, struct list_head *head) { struct ocfs2_recovery_chunk *rc; rc = kmalloc(sizeof(struct ocfs2_recovery_chunk), GFP_NOFS); if (!rc) return -ENOMEM; rc->rc_chunk = chunk; rc->rc_bitmap = kmalloc(sb->s_blocksize, GFP_NOFS); if (!rc->rc_bitmap) { kfree(rc); return -ENOMEM; } memcpy(rc->rc_bitmap, dchunk->dqc_bitmap, (ol_chunk_entries(sb) + 7) >> 3); list_add_tail(&rc->rc_list, head); return 0; } static void free_recovery_list(struct list_head *head) { struct ocfs2_recovery_chunk *next; struct ocfs2_recovery_chunk *rchunk; list_for_each_entry_safe(rchunk, next, head, rc_list) { list_del(&rchunk->rc_list); kfree(rchunk->rc_bitmap); kfree(rchunk); } } void ocfs2_free_quota_recovery(struct ocfs2_quota_recovery *rec) { int type; for (type = 0; type < MAXQUOTAS; type++) free_recovery_list(&(rec->r_list[type])); kfree(rec); } /* Load entries in our quota file we have to recover*/ static int ocfs2_recovery_load_quota(struct inode *lqinode, struct ocfs2_local_disk_dqinfo *ldinfo, int type, struct list_head *head) { struct super_block *sb = lqinode->i_sb; struct buffer_head *hbh; struct ocfs2_local_disk_chunk *dchunk; int i, chunks = le32_to_cpu(ldinfo->dqi_chunks); int status = 0; for (i = 0; i < chunks; i++) { |
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hbh = NULL; status = ocfs2_read_quota_block(lqinode, ol_quota_chunk_block(sb, i), &hbh); if (status) { |
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mlog_errno(status); break; } dchunk = (struct ocfs2_local_disk_chunk *)hbh->b_data; if (le32_to_cpu(dchunk->dqc_free) < ol_chunk_entries(sb)) status = ocfs2_add_recovery_chunk(sb, dchunk, i, head); brelse(hbh); if (status < 0) break; } if (status < 0) free_recovery_list(head); return status; } static struct ocfs2_quota_recovery *ocfs2_alloc_quota_recovery(void) { int type; struct ocfs2_quota_recovery *rec; rec = kmalloc(sizeof(struct ocfs2_quota_recovery), GFP_NOFS); if (!rec) return NULL; for (type = 0; type < MAXQUOTAS; type++) INIT_LIST_HEAD(&(rec->r_list[type])); return rec; } /* Load information we need for quota recovery into memory */ struct ocfs2_quota_recovery *ocfs2_begin_quota_recovery( struct ocfs2_super *osb, int slot_num) { unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, LOCAL_GROUP_QUOTA_SYSTEM_INODE }; struct super_block *sb = osb->sb; struct ocfs2_local_disk_dqinfo *ldinfo; struct inode *lqinode; struct buffer_head *bh; int type; int status = 0; struct ocfs2_quota_recovery *rec; |
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printk(KERN_NOTICE "ocfs2: Beginning quota recovery on device (%s) for " "slot %u ", osb->dev_str, slot_num); |
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rec = ocfs2_alloc_quota_recovery(); if (!rec) return ERR_PTR(-ENOMEM); /* First init... */ for (type = 0; type < MAXQUOTAS; type++) { if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) continue; /* At this point, journal of the slot is already replayed so * we can trust metadata and data of the quota file */ lqinode = ocfs2_get_system_file_inode(osb, ino[type], slot_num); if (!lqinode) { status = -ENOENT; goto out; } status = ocfs2_inode_lock_full(lqinode, NULL, 1, OCFS2_META_LOCK_RECOVERY); if (status < 0) { mlog_errno(status); goto out_put; } /* Now read local header */ |
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bh = NULL; status = ocfs2_read_quota_block(lqinode, 0, &bh); if (status) { |
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mlog_errno(status); mlog(ML_ERROR, "failed to read quota file info header " "(slot=%d type=%d) ", slot_num, type); goto out_lock; } ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data + OCFS2_LOCAL_INFO_OFF); status = ocfs2_recovery_load_quota(lqinode, ldinfo, type, &rec->r_list[type]); brelse(bh); out_lock: ocfs2_inode_unlock(lqinode, 1); out_put: iput(lqinode); if (status < 0) break; } out: if (status < 0) { ocfs2_free_quota_recovery(rec); rec = ERR_PTR(status); } return rec; } /* Sync changes in local quota file into global quota file and * reinitialize local quota file. * The function expects local quota file to be already locked and * dqonoff_mutex locked. */ static int ocfs2_recover_local_quota_file(struct inode *lqinode, int type, struct ocfs2_quota_recovery *rec) { struct super_block *sb = lqinode->i_sb; struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv; struct ocfs2_local_disk_chunk *dchunk; struct ocfs2_local_disk_dqblk *dqblk; struct dquot *dquot; handle_t *handle; struct buffer_head *hbh = NULL, *qbh = NULL; int status = 0; int bit, chunk; struct ocfs2_recovery_chunk *rchunk, *next; qsize_t spacechange, inodechange; |
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trace_ocfs2_recover_local_quota_file((unsigned long)lqinode->i_ino, type); |
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list_for_each_entry_safe(rchunk, next, &(rec->r_list[type]), rc_list) { chunk = rchunk->rc_chunk; |
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hbh = NULL; status = ocfs2_read_quota_block(lqinode, ol_quota_chunk_block(sb, chunk), &hbh); if (status) { |
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mlog_errno(status); break; } dchunk = (struct ocfs2_local_disk_chunk *)hbh->b_data; |
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for_each_set_bit(bit, rchunk->rc_bitmap, ol_chunk_entries(sb)) { |
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qbh = NULL; status = ocfs2_read_quota_block(lqinode, |
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ol_dqblk_block(sb, chunk, bit), |
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&qbh); if (status) { |
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mlog_errno(status); break; } dqblk = (struct ocfs2_local_disk_dqblk *)(qbh->b_data + ol_dqblk_block_off(sb, chunk, bit)); dquot = dqget(sb, le64_to_cpu(dqblk->dqb_id), type); if (!dquot) { status = -EIO; mlog(ML_ERROR, "Failed to get quota structure " "for id %u, type %d. Cannot finish quota " "file recovery. ", (unsigned)le64_to_cpu(dqblk->dqb_id), type); goto out_put_bh; } |
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status = ocfs2_lock_global_qf(oinfo, 1); if (status < 0) { mlog_errno(status); goto out_put_dquot; } |
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handle = ocfs2_start_trans(OCFS2_SB(sb), OCFS2_QSYNC_CREDITS); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); |
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goto out_drop_lock; |
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} mutex_lock(&sb_dqopt(sb)->dqio_mutex); spin_lock(&dq_data_lock); /* Add usage from quota entry into quota changes * of our node. Auxiliary variables are important * due to signedness */ spacechange = le64_to_cpu(dqblk->dqb_spacemod); inodechange = le64_to_cpu(dqblk->dqb_inodemod); dquot->dq_dqb.dqb_curspace += spacechange; dquot->dq_dqb.dqb_curinodes += inodechange; spin_unlock(&dq_data_lock); /* We want to drop reference held by the crashed * node. Since we have our own reference we know * global structure actually won't be freed. */ status = ocfs2_global_release_dquot(dquot); if (status < 0) { mlog_errno(status); goto out_commit; } /* Release local quota file entry */ |
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status = ocfs2_journal_access_dq(handle, INODE_CACHE(lqinode), |
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qbh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto out_commit; } lock_buffer(qbh); |
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WARN_ON(!ocfs2_test_bit_unaligned(bit, dchunk->dqc_bitmap)); ocfs2_clear_bit_unaligned(bit, dchunk->dqc_bitmap); |
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le32_add_cpu(&dchunk->dqc_free, 1); unlock_buffer(qbh); |
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ocfs2_journal_dirty(handle, qbh); |
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out_commit: mutex_unlock(&sb_dqopt(sb)->dqio_mutex); ocfs2_commit_trans(OCFS2_SB(sb), handle); |
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out_drop_lock: ocfs2_unlock_global_qf(oinfo, 1); |
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out_put_dquot: dqput(dquot); out_put_bh: brelse(qbh); if (status < 0) break; } brelse(hbh); list_del(&rchunk->rc_list); kfree(rchunk->rc_bitmap); kfree(rchunk); if (status < 0) break; } |
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if (status < 0) free_recovery_list(&(rec->r_list[type])); |
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if (status) mlog_errno(status); |
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return status; } /* Recover local quota files for given node different from us */ int ocfs2_finish_quota_recovery(struct ocfs2_super *osb, struct ocfs2_quota_recovery *rec, int slot_num) { unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, LOCAL_GROUP_QUOTA_SYSTEM_INODE }; struct super_block *sb = osb->sb; struct ocfs2_local_disk_dqinfo *ldinfo; struct buffer_head *bh; handle_t *handle; int type; int status = 0; struct inode *lqinode; unsigned int flags; |
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printk(KERN_NOTICE "ocfs2: Finishing quota recovery on device (%s) for " "slot %u ", osb->dev_str, slot_num); |
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mutex_lock(&sb_dqopt(sb)->dqonoff_mutex); for (type = 0; type < MAXQUOTAS; type++) { if (list_empty(&(rec->r_list[type]))) continue; |
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trace_ocfs2_finish_quota_recovery(slot_num); |
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lqinode = ocfs2_get_system_file_inode(osb, ino[type], slot_num); if (!lqinode) { status = -ENOENT; goto out; } status = ocfs2_inode_lock_full(lqinode, NULL, 1, OCFS2_META_LOCK_NOQUEUE); /* Someone else is holding the lock? Then he must be * doing the recovery. Just skip the file... */ if (status == -EAGAIN) { |
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printk(KERN_NOTICE "ocfs2: Skipping quota recovery on " "device (%s) for slot %d because quota file is " "locked. ", osb->dev_str, slot_num); |
2205363dc ocfs2: Implement ... |
621 622 623 624 625 626 627 |
status = 0; goto out_put; } else if (status < 0) { mlog_errno(status); goto out_put; } /* Now read local header */ |
85eb8b73d ocfs2: Fix ocfs2_... |
628 629 630 |
bh = NULL; status = ocfs2_read_quota_block(lqinode, 0, &bh); if (status) { |
2205363dc ocfs2: Implement ... |
631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 |
mlog_errno(status); mlog(ML_ERROR, "failed to read quota file info header " "(slot=%d type=%d) ", slot_num, type); goto out_lock; } ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data + OCFS2_LOCAL_INFO_OFF); /* Is recovery still needed? */ flags = le32_to_cpu(ldinfo->dqi_flags); if (!(flags & OLQF_CLEAN)) status = ocfs2_recover_local_quota_file(lqinode, type, rec); /* We don't want to mark file as clean when it is actually * active */ if (slot_num == osb->slot_num) goto out_bh; /* Mark quota file as clean if we are recovering quota file of * some other node. */ |
0584974a7 ocfs2: Define cre... |
651 652 |
handle = ocfs2_start_trans(osb, OCFS2_LOCAL_QINFO_WRITE_CREDITS); |
2205363dc ocfs2: Implement ... |
653 654 655 656 657 |
if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); goto out_bh; } |
0cf2f7632 ocfs2: Pass struc... |
658 659 |
status = ocfs2_journal_access_dq(handle, INODE_CACHE(lqinode), bh, |
13723d00e ocfs2: Use metada... |
660 |
OCFS2_JOURNAL_ACCESS_WRITE); |
2205363dc ocfs2: Implement ... |
661 662 663 664 665 666 667 |
if (status < 0) { mlog_errno(status); goto out_trans; } lock_buffer(bh); ldinfo->dqi_flags = cpu_to_le32(flags | OLQF_CLEAN); unlock_buffer(bh); |
ec20cec7a ocfs2: Make ocfs2... |
668 |
ocfs2_journal_dirty(handle, bh); |
2205363dc ocfs2: Implement ... |
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 |
out_trans: ocfs2_commit_trans(osb, handle); out_bh: brelse(bh); out_lock: ocfs2_inode_unlock(lqinode, 1); out_put: iput(lqinode); if (status < 0) break; } out: mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex); kfree(rec); return status; } |
9e33d69f5 ocfs2: Implementa... |
685 686 687 688 689 690 691 692 693 |
/* Read information header from quota file */ static int ocfs2_local_read_info(struct super_block *sb, int type) { struct ocfs2_local_disk_dqinfo *ldinfo; struct mem_dqinfo *info = sb_dqinfo(sb, type); struct ocfs2_mem_dqinfo *oinfo; struct inode *lqinode = sb_dqopt(sb)->files[type]; int status; struct buffer_head *bh = NULL; |
2205363dc ocfs2: Implement ... |
694 |
struct ocfs2_quota_recovery *rec; |
9e33d69f5 ocfs2: Implementa... |
695 |
int locked = 0; |
b4c30de39 ocfs2: Fix lock i... |
696 697 698 |
/* We don't need the lock and we have to acquire quota file locks * which will later depend on this lock */ mutex_unlock(&sb_dqopt(sb)->dqio_mutex); |
9e33d69f5 ocfs2: Implementa... |
699 700 701 702 703 704 705 706 707 708 709 |
info->dqi_maxblimit = 0x7fffffffffffffffLL; info->dqi_maxilimit = 0x7fffffffffffffffLL; oinfo = kmalloc(sizeof(struct ocfs2_mem_dqinfo), GFP_NOFS); if (!oinfo) { mlog(ML_ERROR, "failed to allocate memory for ocfs2 quota" " info."); goto out_err; } info->dqi_priv = oinfo; oinfo->dqi_type = type; INIT_LIST_HEAD(&oinfo->dqi_chunk); |
2205363dc ocfs2: Implement ... |
710 |
oinfo->dqi_rec = NULL; |
9e33d69f5 ocfs2: Implementa... |
711 |
oinfo->dqi_lqi_bh = NULL; |
ae4f6ef13 ocfs2: Avoid unne... |
712 |
oinfo->dqi_libh = NULL; |
9e33d69f5 ocfs2: Implementa... |
713 714 715 716 717 718 719 720 721 722 723 724 725 |
status = ocfs2_global_read_info(sb, type); if (status < 0) goto out_err; status = ocfs2_inode_lock(lqinode, &oinfo->dqi_lqi_bh, 1); if (status < 0) { mlog_errno(status); goto out_err; } locked = 1; /* Now read local header */ |
85eb8b73d ocfs2: Fix ocfs2_... |
726 727 |
status = ocfs2_read_quota_block(lqinode, 0, &bh); if (status) { |
9e33d69f5 ocfs2: Implementa... |
728 729 730 731 732 733 734 735 736 737 738 |
mlog_errno(status); mlog(ML_ERROR, "failed to read quota file info header " "(type=%d) ", type); goto out_err; } ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data + OCFS2_LOCAL_INFO_OFF); info->dqi_flags = le32_to_cpu(ldinfo->dqi_flags); oinfo->dqi_chunks = le32_to_cpu(ldinfo->dqi_chunks); oinfo->dqi_blocks = le32_to_cpu(ldinfo->dqi_blocks); |
ae4f6ef13 ocfs2: Avoid unne... |
739 |
oinfo->dqi_libh = bh; |
9e33d69f5 ocfs2: Implementa... |
740 741 |
/* We crashed when using local quota file? */ |
2205363dc ocfs2: Implement ... |
742 743 744 745 746 747 748 749 750 751 752 |
if (!(info->dqi_flags & OLQF_CLEAN)) { rec = OCFS2_SB(sb)->quota_rec; if (!rec) { rec = ocfs2_alloc_quota_recovery(); if (!rec) { status = -ENOMEM; mlog_errno(status); goto out_err; } OCFS2_SB(sb)->quota_rec = rec; } |
9e33d69f5 ocfs2: Implementa... |
753 |
|
2205363dc ocfs2: Implement ... |
754 755 756 757 758 759 760 761 762 |
status = ocfs2_recovery_load_quota(lqinode, ldinfo, type, &rec->r_list[type]); if (status < 0) { mlog_errno(status); goto out_err; } } status = ocfs2_load_local_quota_bitmaps(lqinode, |
9e33d69f5 ocfs2: Implementa... |
763 764 765 766 767 768 769 770 771 772 773 774 775 776 |
ldinfo, &oinfo->dqi_chunk); if (status < 0) { mlog_errno(status); goto out_err; } /* Now mark quota file as used */ info->dqi_flags &= ~OLQF_CLEAN; status = ocfs2_modify_bh(lqinode, bh, olq_update_info, info); if (status < 0) { mlog_errno(status); goto out_err; } |
b4c30de39 ocfs2: Fix lock i... |
777 |
mutex_lock(&sb_dqopt(sb)->dqio_mutex); |
9e33d69f5 ocfs2: Implementa... |
778 779 780 781 782 783 784 785 786 787 788 789 790 |
return 0; out_err: if (oinfo) { iput(oinfo->dqi_gqinode); ocfs2_simple_drop_lockres(OCFS2_SB(sb), &oinfo->dqi_gqlock); ocfs2_lock_res_free(&oinfo->dqi_gqlock); brelse(oinfo->dqi_lqi_bh); if (locked) ocfs2_inode_unlock(lqinode, 1); ocfs2_release_local_quota_bitmaps(&oinfo->dqi_chunk); kfree(oinfo); } brelse(bh); |
b4c30de39 ocfs2: Fix lock i... |
791 |
mutex_lock(&sb_dqopt(sb)->dqio_mutex); |
9e33d69f5 ocfs2: Implementa... |
792 793 794 795 796 797 798 799 |
return -1; } /* Write local info to quota file */ static int ocfs2_local_write_info(struct super_block *sb, int type) { struct mem_dqinfo *info = sb_dqinfo(sb, type); struct buffer_head *bh = ((struct ocfs2_mem_dqinfo *)info->dqi_priv) |
ae4f6ef13 ocfs2: Avoid unne... |
800 |
->dqi_libh; |
9e33d69f5 ocfs2: Implementa... |
801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 |
int status; status = ocfs2_modify_bh(sb_dqopt(sb)->files[type], bh, olq_update_info, info); if (status < 0) { mlog_errno(status); return -1; } return 0; } /* Release info from memory */ static int ocfs2_local_free_info(struct super_block *sb, int type) { struct mem_dqinfo *info = sb_dqinfo(sb, type); struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv; struct ocfs2_quota_chunk *chunk; struct ocfs2_local_disk_chunk *dchunk; int mark_clean = 1, len; int status; iput(oinfo->dqi_gqinode); ocfs2_simple_drop_lockres(OCFS2_SB(sb), &oinfo->dqi_gqlock); ocfs2_lock_res_free(&oinfo->dqi_gqlock); list_for_each_entry(chunk, &oinfo->dqi_chunk, qc_chunk) { dchunk = (struct ocfs2_local_disk_chunk *) (chunk->qc_headerbh->b_data); if (chunk->qc_num < oinfo->dqi_chunks - 1) { len = ol_chunk_entries(sb); } else { len = (oinfo->dqi_blocks - ol_quota_chunk_block(sb, chunk->qc_num) - 1) * ol_quota_entries_per_block(sb); } /* Not all entries free? Bug! */ if (le32_to_cpu(dchunk->dqc_free) != len) { mlog(ML_ERROR, "releasing quota file with used " "entries (type=%d) ", type); mark_clean = 0; } } ocfs2_release_local_quota_bitmaps(&oinfo->dqi_chunk); |
2205363dc ocfs2: Implement ... |
845 846 847 848 849 |
/* dqonoff_mutex protects us against racing with recovery thread... */ if (oinfo->dqi_rec) { ocfs2_free_quota_recovery(oinfo->dqi_rec); mark_clean = 0; } |
9e33d69f5 ocfs2: Implementa... |
850 851 852 853 854 855 |
if (!mark_clean) goto out; /* Mark local file as clean */ info->dqi_flags |= OLQF_CLEAN; status = ocfs2_modify_bh(sb_dqopt(sb)->files[type], |
ae4f6ef13 ocfs2: Avoid unne... |
856 |
oinfo->dqi_libh, |
9e33d69f5 ocfs2: Implementa... |
857 858 859 860 861 862 863 864 865 |
olq_update_info, info); if (status < 0) { mlog_errno(status); goto out; } out: ocfs2_inode_unlock(sb_dqopt(sb)->files[type], 1); |
ae4f6ef13 ocfs2: Avoid unne... |
866 |
brelse(oinfo->dqi_libh); |
9e33d69f5 ocfs2: Implementa... |
867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 |
brelse(oinfo->dqi_lqi_bh); kfree(oinfo); return 0; } static void olq_set_dquot(struct buffer_head *bh, void *private) { struct ocfs2_dquot *od = private; struct ocfs2_local_disk_dqblk *dqblk; struct super_block *sb = od->dq_dquot.dq_sb; dqblk = (struct ocfs2_local_disk_dqblk *)(bh->b_data + ol_dqblk_block_offset(sb, od->dq_local_off)); dqblk->dqb_id = cpu_to_le64(od->dq_dquot.dq_id); spin_lock(&dq_data_lock); dqblk->dqb_spacemod = cpu_to_le64(od->dq_dquot.dq_dqb.dqb_curspace - od->dq_origspace); dqblk->dqb_inodemod = cpu_to_le64(od->dq_dquot.dq_dqb.dqb_curinodes - od->dq_originodes); spin_unlock(&dq_data_lock); |
38877a437 ocfs2: Remove mlo... |
888 889 890 891 |
trace_olq_set_dquot( (unsigned long long)le64_to_cpu(dqblk->dqb_spacemod), (unsigned long long)le64_to_cpu(dqblk->dqb_inodemod), od->dq_dquot.dq_id); |
9e33d69f5 ocfs2: Implementa... |
892 893 894 |
} /* Write dquot to local quota file */ |
741e12893 ocfs2: Fix NULL p... |
895 |
int ocfs2_local_write_dquot(struct dquot *dquot) |
9e33d69f5 ocfs2: Implementa... |
896 897 898 |
{ struct super_block *sb = dquot->dq_sb; struct ocfs2_dquot *od = OCFS2_DQUOT(dquot); |
f64dd44eb ocfs2: Do not map... |
899 900 |
struct buffer_head *bh; struct inode *lqinode = sb_dqopt(sb)->files[dquot->dq_type]; |
9e33d69f5 ocfs2: Implementa... |
901 |
int status; |
f64dd44eb ocfs2: Do not map... |
902 903 |
status = ocfs2_read_quota_phys_block(lqinode, od->dq_local_phys_blk, &bh); |
85eb8b73d ocfs2: Fix ocfs2_... |
904 |
if (status) { |
9e33d69f5 ocfs2: Implementa... |
905 906 907 |
mlog_errno(status); goto out; } |
f64dd44eb ocfs2: Do not map... |
908 |
status = ocfs2_modify_bh(lqinode, bh, olq_set_dquot, od); |
9e33d69f5 ocfs2: Implementa... |
909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 |
if (status < 0) { mlog_errno(status); goto out; } out: brelse(bh); return status; } /* Find free entry in local quota file */ static struct ocfs2_quota_chunk *ocfs2_find_free_entry(struct super_block *sb, int type, int *offset) { struct mem_dqinfo *info = sb_dqinfo(sb, type); struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv; struct ocfs2_quota_chunk *chunk; struct ocfs2_local_disk_chunk *dchunk; int found = 0, len; list_for_each_entry(chunk, &oinfo->dqi_chunk, qc_chunk) { dchunk = (struct ocfs2_local_disk_chunk *) chunk->qc_headerbh->b_data; if (le32_to_cpu(dchunk->dqc_free) > 0) { found = 1; break; } } if (!found) return NULL; if (chunk->qc_num < oinfo->dqi_chunks - 1) { len = ol_chunk_entries(sb); } else { len = (oinfo->dqi_blocks - ol_quota_chunk_block(sb, chunk->qc_num) - 1) * ol_quota_entries_per_block(sb); } |
939255798 ocfs2: avoid unal... |
947 |
found = ocfs2_find_next_zero_bit_unaligned(dchunk->dqc_bitmap, len, 0); |
9e33d69f5 ocfs2: Implementa... |
948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 |
/* We failed? */ if (found == len) { mlog(ML_ERROR, "Did not find empty entry in chunk %d with %u" " entries free (type=%d) ", chunk->qc_num, le32_to_cpu(dchunk->dqc_free), type); return ERR_PTR(-EIO); } *offset = found; return chunk; } /* Add new chunk to the local quota file */ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk( struct super_block *sb, int type, int *offset) { struct mem_dqinfo *info = sb_dqinfo(sb, type); struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv; struct inode *lqinode = sb_dqopt(sb)->files[type]; struct ocfs2_quota_chunk *chunk = NULL; struct ocfs2_local_disk_chunk *dchunk; int status; handle_t *handle; |
0e7f387bf ocfs2: Initialize... |
973 |
struct buffer_head *bh = NULL, *dbh = NULL; |
9e33d69f5 ocfs2: Implementa... |
974 975 976 |
u64 p_blkno; /* We are protected by dqio_sem so no locking needed */ |
5693486ba ocfs2: Zero the t... |
977 |
status = ocfs2_extend_no_holes(lqinode, NULL, |
9e33d69f5 ocfs2: Implementa... |
978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 |
lqinode->i_size + 2 * sb->s_blocksize, lqinode->i_size); if (status < 0) { mlog_errno(status); goto out; } status = ocfs2_simple_size_update(lqinode, oinfo->dqi_lqi_bh, lqinode->i_size + 2 * sb->s_blocksize); if (status < 0) { mlog_errno(status); goto out; } chunk = kmem_cache_alloc(ocfs2_qf_chunk_cachep, GFP_NOFS); if (!chunk) { status = -ENOMEM; mlog_errno(status); goto out; } |
0584974a7 ocfs2: Define cre... |
997 998 999 1000 |
/* Local quota info and two new blocks we initialize */ handle = ocfs2_start_trans(OCFS2_SB(sb), OCFS2_LOCAL_QINFO_WRITE_CREDITS + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS); |
0e7f387bf ocfs2: Initialize... |
1001 1002 1003 1004 1005 |
if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); goto out; } |
9e33d69f5 ocfs2: Implementa... |
1006 |
|
0e7f387bf ocfs2: Initialize... |
1007 |
/* Initialize chunk header */ |
9e33d69f5 ocfs2: Implementa... |
1008 1009 |
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks, &p_blkno, NULL, NULL); |
9e33d69f5 ocfs2: Implementa... |
1010 1011 |
if (status < 0) { mlog_errno(status); |
0e7f387bf ocfs2: Initialize... |
1012 |
goto out_trans; |
9e33d69f5 ocfs2: Implementa... |
1013 1014 1015 1016 1017 |
} bh = sb_getblk(sb, p_blkno); if (!bh) { status = -ENOMEM; mlog_errno(status); |
0e7f387bf ocfs2: Initialize... |
1018 |
goto out_trans; |
9e33d69f5 ocfs2: Implementa... |
1019 1020 |
} dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data; |
8cb471e8f ocfs2: Take the i... |
1021 |
ocfs2_set_new_buffer_uptodate(INODE_CACHE(lqinode), bh); |
0cf2f7632 ocfs2: Pass struc... |
1022 |
status = ocfs2_journal_access_dq(handle, INODE_CACHE(lqinode), bh, |
0e7f387bf ocfs2: Initialize... |
1023 |
OCFS2_JOURNAL_ACCESS_CREATE); |
9e33d69f5 ocfs2: Implementa... |
1024 1025 1026 1027 1028 |
if (status < 0) { mlog_errno(status); goto out_trans; } lock_buffer(bh); |
df32b3343 ocfs2/quota: spar... |
1029 |
dchunk->dqc_free = cpu_to_le32(ol_quota_entries_per_block(sb)); |
9e33d69f5 ocfs2: Implementa... |
1030 1031 1032 |
memset(dchunk->dqc_bitmap, 0, sb->s_blocksize - sizeof(struct ocfs2_local_disk_chunk) - OCFS2_QBLK_RESERVED_SPACE); |
9e33d69f5 ocfs2: Implementa... |
1033 |
unlock_buffer(bh); |
ec20cec7a ocfs2: Make ocfs2... |
1034 |
ocfs2_journal_dirty(handle, bh); |
9e33d69f5 ocfs2: Implementa... |
1035 |
|
0e7f387bf ocfs2: Initialize... |
1036 |
/* Initialize new block with structures */ |
0e7f387bf ocfs2: Initialize... |
1037 1038 |
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks + 1, &p_blkno, NULL, NULL); |
0e7f387bf ocfs2: Initialize... |
1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 |
if (status < 0) { mlog_errno(status); goto out_trans; } dbh = sb_getblk(sb, p_blkno); if (!dbh) { status = -ENOMEM; mlog_errno(status); goto out_trans; } |
8cb471e8f ocfs2: Take the i... |
1049 |
ocfs2_set_new_buffer_uptodate(INODE_CACHE(lqinode), dbh); |
0cf2f7632 ocfs2: Pass struc... |
1050 |
status = ocfs2_journal_access_dq(handle, INODE_CACHE(lqinode), dbh, |
0e7f387bf ocfs2: Initialize... |
1051 1052 1053 1054 1055 1056 1057 1058 |
OCFS2_JOURNAL_ACCESS_CREATE); if (status < 0) { mlog_errno(status); goto out_trans; } lock_buffer(dbh); memset(dbh->b_data, 0, sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE); unlock_buffer(dbh); |
ec20cec7a ocfs2: Make ocfs2... |
1059 |
ocfs2_journal_dirty(handle, dbh); |
0e7f387bf ocfs2: Initialize... |
1060 1061 |
/* Update local quotafile info */ |
9e33d69f5 ocfs2: Implementa... |
1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 |
oinfo->dqi_blocks += 2; oinfo->dqi_chunks++; status = ocfs2_local_write_info(sb, type); if (status < 0) { mlog_errno(status); goto out_trans; } status = ocfs2_commit_trans(OCFS2_SB(sb), handle); if (status < 0) { mlog_errno(status); goto out; } list_add_tail(&chunk->qc_chunk, &oinfo->dqi_chunk); chunk->qc_num = list_entry(chunk->qc_chunk.prev, struct ocfs2_quota_chunk, qc_chunk)->qc_num + 1; chunk->qc_headerbh = bh; *offset = 0; return chunk; out_trans: ocfs2_commit_trans(OCFS2_SB(sb), handle); out: brelse(bh); |
0e7f387bf ocfs2: Initialize... |
1086 |
brelse(dbh); |
9e33d69f5 ocfs2: Implementa... |
1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 |
kmem_cache_free(ocfs2_qf_chunk_cachep, chunk); return ERR_PTR(status); } /* Find free entry in local quota file */ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file( struct super_block *sb, int type, int *offset) { struct mem_dqinfo *info = sb_dqinfo(sb, type); struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv; struct ocfs2_quota_chunk *chunk; struct inode *lqinode = sb_dqopt(sb)->files[type]; struct ocfs2_local_disk_chunk *dchunk; int epb = ol_quota_entries_per_block(sb); unsigned int chunk_blocks; |
0e7f387bf ocfs2: Initialize... |
1104 1105 |
struct buffer_head *bh; u64 p_blkno; |
9e33d69f5 ocfs2: Implementa... |
1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 |
int status; handle_t *handle; if (list_empty(&oinfo->dqi_chunk)) return ocfs2_local_quota_add_chunk(sb, type, offset); /* Is the last chunk full? */ chunk = list_entry(oinfo->dqi_chunk.prev, struct ocfs2_quota_chunk, qc_chunk); chunk_blocks = oinfo->dqi_blocks - ol_quota_chunk_block(sb, chunk->qc_num) - 1; if (ol_chunk_blocks(sb) == chunk_blocks) return ocfs2_local_quota_add_chunk(sb, type, offset); /* We are protected by dqio_sem so no locking needed */ |
5693486ba ocfs2: Zero the t... |
1120 |
status = ocfs2_extend_no_holes(lqinode, NULL, |
9e33d69f5 ocfs2: Implementa... |
1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 |
lqinode->i_size + sb->s_blocksize, lqinode->i_size); if (status < 0) { mlog_errno(status); goto out; } status = ocfs2_simple_size_update(lqinode, oinfo->dqi_lqi_bh, lqinode->i_size + sb->s_blocksize); if (status < 0) { mlog_errno(status); goto out; } |
0e7f387bf ocfs2: Initialize... |
1133 1134 |
/* Get buffer from the just added block */ |
0e7f387bf ocfs2: Initialize... |
1135 1136 |
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks, &p_blkno, NULL, NULL); |
0e7f387bf ocfs2: Initialize... |
1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 |
if (status < 0) { mlog_errno(status); goto out; } bh = sb_getblk(sb, p_blkno); if (!bh) { status = -ENOMEM; mlog_errno(status); goto out; } |
8cb471e8f ocfs2: Take the i... |
1147 |
ocfs2_set_new_buffer_uptodate(INODE_CACHE(lqinode), bh); |
0e7f387bf ocfs2: Initialize... |
1148 |
|
0584974a7 ocfs2: Define cre... |
1149 1150 1151 1152 |
/* Local quota info, chunk header and the new block we initialize */ handle = ocfs2_start_trans(OCFS2_SB(sb), OCFS2_LOCAL_QINFO_WRITE_CREDITS + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS); |
9e33d69f5 ocfs2: Implementa... |
1153 1154 1155 1156 1157 |
if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); goto out; } |
0e7f387bf ocfs2: Initialize... |
1158 |
/* Zero created block */ |
0cf2f7632 ocfs2: Pass struc... |
1159 |
status = ocfs2_journal_access_dq(handle, INODE_CACHE(lqinode), bh, |
0e7f387bf ocfs2: Initialize... |
1160 1161 1162 1163 1164 1165 1166 1167 |
OCFS2_JOURNAL_ACCESS_CREATE); if (status < 0) { mlog_errno(status); goto out_trans; } lock_buffer(bh); memset(bh->b_data, 0, sb->s_blocksize); unlock_buffer(bh); |
ec20cec7a ocfs2: Make ocfs2... |
1168 |
ocfs2_journal_dirty(handle, bh); |
0e7f387bf ocfs2: Initialize... |
1169 |
/* Update chunk header */ |
0cf2f7632 ocfs2: Pass struc... |
1170 1171 |
status = ocfs2_journal_access_dq(handle, INODE_CACHE(lqinode), chunk->qc_headerbh, |
9e33d69f5 ocfs2: Implementa... |
1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 |
OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto out_trans; } dchunk = (struct ocfs2_local_disk_chunk *)chunk->qc_headerbh->b_data; lock_buffer(chunk->qc_headerbh); le32_add_cpu(&dchunk->dqc_free, ol_quota_entries_per_block(sb)); unlock_buffer(chunk->qc_headerbh); |
ec20cec7a ocfs2: Make ocfs2... |
1182 |
ocfs2_journal_dirty(handle, chunk->qc_headerbh); |
0e7f387bf ocfs2: Initialize... |
1183 |
/* Update file header */ |
9e33d69f5 ocfs2: Implementa... |
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 |
oinfo->dqi_blocks++; status = ocfs2_local_write_info(sb, type); if (status < 0) { mlog_errno(status); goto out_trans; } status = ocfs2_commit_trans(OCFS2_SB(sb), handle); if (status < 0) { mlog_errno(status); goto out; } *offset = chunk_blocks * epb; return chunk; out_trans: ocfs2_commit_trans(OCFS2_SB(sb), handle); out: return ERR_PTR(status); } |
df32b3343 ocfs2/quota: spar... |
1203 |
static void olq_alloc_dquot(struct buffer_head *bh, void *private) |
9e33d69f5 ocfs2: Implementa... |
1204 1205 1206 1207 1208 |
{ int *offset = private; struct ocfs2_local_disk_chunk *dchunk; dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data; |
939255798 ocfs2: avoid unal... |
1209 |
ocfs2_set_bit_unaligned(*offset, dchunk->dqc_bitmap); |
9e33d69f5 ocfs2: Implementa... |
1210 1211 1212 1213 |
le32_add_cpu(&dchunk->dqc_free, -1); } /* Create dquot in the local file for given id */ |
fb8dd8d78 ocfs2: Fix quota ... |
1214 |
int ocfs2_create_local_dquot(struct dquot *dquot) |
9e33d69f5 ocfs2: Implementa... |
1215 1216 1217 1218 1219 1220 1221 1222 |
{ struct super_block *sb = dquot->dq_sb; int type = dquot->dq_type; struct inode *lqinode = sb_dqopt(sb)->files[type]; struct ocfs2_quota_chunk *chunk; struct ocfs2_dquot *od = OCFS2_DQUOT(dquot); int offset; int status; |
f64dd44eb ocfs2: Do not map... |
1223 |
u64 pcount; |
9e33d69f5 ocfs2: Implementa... |
1224 |
|
f64dd44eb ocfs2: Do not map... |
1225 |
down_write(&OCFS2_I(lqinode)->ip_alloc_sem); |
9e33d69f5 ocfs2: Implementa... |
1226 1227 1228 |
chunk = ocfs2_find_free_entry(sb, type, &offset); if (!chunk) { chunk = ocfs2_extend_local_quota_file(sb, type, &offset); |
f64dd44eb ocfs2: Do not map... |
1229 1230 1231 1232 |
if (IS_ERR(chunk)) { status = PTR_ERR(chunk); goto out; } |
9e33d69f5 ocfs2: Implementa... |
1233 |
} else if (IS_ERR(chunk)) { |
f64dd44eb ocfs2: Do not map... |
1234 1235 |
status = PTR_ERR(chunk); goto out; |
9e33d69f5 ocfs2: Implementa... |
1236 1237 1238 |
} od->dq_local_off = ol_dqblk_off(sb, chunk->qc_num, offset); od->dq_chunk = chunk; |
f64dd44eb ocfs2: Do not map... |
1239 1240 1241 1242 1243 |
status = ocfs2_extent_map_get_blocks(lqinode, ol_dqblk_block(sb, chunk->qc_num, offset), &od->dq_local_phys_blk, &pcount, NULL); |
9e33d69f5 ocfs2: Implementa... |
1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 |
/* Initialize dquot structure on disk */ status = ocfs2_local_write_dquot(dquot); if (status < 0) { mlog_errno(status); goto out; } /* Mark structure as allocated */ status = ocfs2_modify_bh(lqinode, chunk->qc_headerbh, olq_alloc_dquot, &offset); if (status < 0) { mlog_errno(status); goto out; } out: |
f64dd44eb ocfs2: Do not map... |
1260 |
up_write(&OCFS2_I(lqinode)->ip_alloc_sem); |
9e33d69f5 ocfs2: Implementa... |
1261 1262 |
return status; } |
fb8dd8d78 ocfs2: Fix quota ... |
1263 1264 1265 1266 1267 |
/* * Release dquot structure from local quota file. ocfs2_release_dquot() has * already started a transaction and written all changes to global quota file */ int ocfs2_local_release_dquot(handle_t *handle, struct dquot *dquot) |
9e33d69f5 ocfs2: Implementa... |
1268 1269 1270 1271 1272 1273 1274 |
{ int status; int type = dquot->dq_type; struct ocfs2_dquot *od = OCFS2_DQUOT(dquot); struct super_block *sb = dquot->dq_sb; struct ocfs2_local_disk_chunk *dchunk; int offset; |
9e33d69f5 ocfs2: Implementa... |
1275 |
|
0cf2f7632 ocfs2: Pass struc... |
1276 1277 |
status = ocfs2_journal_access_dq(handle, INODE_CACHE(sb_dqopt(sb)->files[type]), |
9e33d69f5 ocfs2: Implementa... |
1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 |
od->dq_chunk->qc_headerbh, OCFS2_JOURNAL_ACCESS_WRITE); if (status < 0) { mlog_errno(status); goto out; } offset = ol_dqblk_chunk_off(sb, od->dq_chunk->qc_num, od->dq_local_off); dchunk = (struct ocfs2_local_disk_chunk *) (od->dq_chunk->qc_headerbh->b_data); /* Mark structure as freed */ lock_buffer(od->dq_chunk->qc_headerbh); |
939255798 ocfs2: avoid unal... |
1289 |
ocfs2_clear_bit_unaligned(offset, dchunk->dqc_bitmap); |
9e33d69f5 ocfs2: Implementa... |
1290 1291 |
le32_add_cpu(&dchunk->dqc_free, 1); unlock_buffer(od->dq_chunk->qc_headerbh); |
ec20cec7a ocfs2: Make ocfs2... |
1292 |
ocfs2_journal_dirty(handle, od->dq_chunk->qc_headerbh); |
9e33d69f5 ocfs2: Implementa... |
1293 1294 1295 1296 1297 1298 1299 |
out: /* Clear the read bit so that next time someone uses this * dquot he reads fresh info from disk and allocates local * dquot structure */ clear_bit(DQ_READ_B, &dquot->dq_flags); return status; } |
1472da5fd const: struct quo... |
1300 |
static const struct quota_format_ops ocfs2_format_ops = { |
9e33d69f5 ocfs2: Implementa... |
1301 1302 1303 1304 |
.check_quota_file = ocfs2_local_check_quota_file, .read_file_info = ocfs2_local_read_info, .write_file_info = ocfs2_global_write_info, .free_file_info = ocfs2_local_free_info, |
9e33d69f5 ocfs2: Implementa... |
1305 1306 1307 1308 1309 1310 1311 |
}; struct quota_format_type ocfs2_quota_format = { .qf_fmt_id = QFMT_OCFS2, .qf_ops = &ocfs2_format_ops, .qf_owner = THIS_MODULE }; |