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Diffstat (limited to 'fs/ocfs2/quota_local.c')
-rw-r--r--fs/ocfs2/quota_local.c133
1 files changed, 65 insertions, 68 deletions
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 884b641f199..8bd70d4d184 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -22,6 +22,7 @@
#include "dlmglue.h"
#include "quota.h"
#include "uptodate.h"
+#include "super.h"
/* Number of local quota structures per block */
static inline unsigned int ol_quota_entries_per_block(struct super_block *sb)
@@ -129,6 +130,39 @@ static int ocfs2_modify_bh(struct inode *inode, struct buffer_head *bh,
return 0;
}
+/*
+ * 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\n",
+ (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;
+}
+
/* Check whether we understand format of quota files */
static int ocfs2_local_check_quota_file(struct super_block *sb, int type)
{
@@ -671,7 +705,7 @@ static int ocfs2_local_read_info(struct super_block *sb, int type)
INIT_LIST_HEAD(&oinfo->dqi_chunk);
oinfo->dqi_rec = NULL;
oinfo->dqi_lqi_bh = NULL;
- oinfo->dqi_ibh = NULL;
+ oinfo->dqi_libh = NULL;
status = ocfs2_global_read_info(sb, type);
if (status < 0)
@@ -697,7 +731,7 @@ static int ocfs2_local_read_info(struct super_block *sb, int type)
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);
- oinfo->dqi_ibh = bh;
+ oinfo->dqi_libh = bh;
/* We crashed when using local quota file? */
if (!(info->dqi_flags & OLQF_CLEAN)) {
@@ -759,7 +793,7 @@ 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)
- ->dqi_ibh;
+ ->dqi_libh;
int status;
status = ocfs2_modify_bh(sb_dqopt(sb)->files[type], bh, olq_update_info,
@@ -782,10 +816,6 @@ static int ocfs2_local_free_info(struct super_block *sb, int type)
int mark_clean = 1, len;
int status;
- /* At this point we know there are no more dquots and thus
- * even if there's some sync in the pdflush queue, it won't
- * find any dquots and return without doing anything */
- cancel_delayed_work_sync(&oinfo->dqi_sync_work);
iput(oinfo->dqi_gqinode);
ocfs2_simple_drop_lockres(OCFS2_SB(sb), &oinfo->dqi_gqlock);
ocfs2_lock_res_free(&oinfo->dqi_gqlock);
@@ -820,7 +850,7 @@ static int ocfs2_local_free_info(struct super_block *sb, int type)
/* Mark local file as clean */
info->dqi_flags |= OLQF_CLEAN;
status = ocfs2_modify_bh(sb_dqopt(sb)->files[type],
- oinfo->dqi_ibh,
+ oinfo->dqi_libh,
olq_update_info,
info);
if (status < 0) {
@@ -830,7 +860,7 @@ static int ocfs2_local_free_info(struct super_block *sb, int type)
out:
ocfs2_inode_unlock(sb_dqopt(sb)->files[type], 1);
- brelse(oinfo->dqi_ibh);
+ brelse(oinfo->dqi_libh);
brelse(oinfo->dqi_lqi_bh);
kfree(oinfo);
return 0;
@@ -858,22 +888,21 @@ static void olq_set_dquot(struct buffer_head *bh, void *private)
}
/* Write dquot to local quota file */
-static int ocfs2_local_write_dquot(struct dquot *dquot)
+int ocfs2_local_write_dquot(struct dquot *dquot)
{
struct super_block *sb = dquot->dq_sb;
struct ocfs2_dquot *od = OCFS2_DQUOT(dquot);
- struct buffer_head *bh = NULL;
+ struct buffer_head *bh;
+ struct inode *lqinode = sb_dqopt(sb)->files[dquot->dq_type];
int status;
- status = ocfs2_read_quota_block(sb_dqopt(sb)->files[dquot->dq_type],
- ol_dqblk_file_block(sb, od->dq_local_off),
- &bh);
+ status = ocfs2_read_quota_phys_block(lqinode, od->dq_local_phys_blk,
+ &bh);
if (status) {
mlog_errno(status);
goto out;
}
- status = ocfs2_modify_bh(sb_dqopt(sb)->files[dquot->dq_type], bh,
- olq_set_dquot, od);
+ status = ocfs2_modify_bh(lqinode, bh, olq_set_dquot, od);
if (status < 0) {
mlog_errno(status);
goto out;
@@ -973,10 +1002,8 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
}
/* Initialize chunk header */
- down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
&p_blkno, NULL, NULL);
- up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
goto out_trans;
@@ -1004,10 +1031,8 @@ static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
ocfs2_journal_dirty(handle, bh);
/* Initialize new block with structures */
- down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks + 1,
&p_blkno, NULL, NULL);
- up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
goto out_trans;
@@ -1104,10 +1129,8 @@ static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
}
/* Get buffer from the just added block */
- down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
&p_blkno, NULL, NULL);
- up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
if (status < 0) {
mlog_errno(status);
goto out;
@@ -1188,7 +1211,7 @@ static void olq_alloc_dquot(struct buffer_head *bh, void *private)
}
/* Create dquot in the local file for given id */
-static int ocfs2_create_local_dquot(struct dquot *dquot)
+int ocfs2_create_local_dquot(struct dquot *dquot)
{
struct super_block *sb = dquot->dq_sb;
int type = dquot->dq_type;
@@ -1197,17 +1220,27 @@ static int ocfs2_create_local_dquot(struct dquot *dquot)
struct ocfs2_dquot *od = OCFS2_DQUOT(dquot);
int offset;
int status;
+ u64 pcount;
+ down_write(&OCFS2_I(lqinode)->ip_alloc_sem);
chunk = ocfs2_find_free_entry(sb, type, &offset);
if (!chunk) {
chunk = ocfs2_extend_local_quota_file(sb, type, &offset);
- if (IS_ERR(chunk))
- return PTR_ERR(chunk);
+ if (IS_ERR(chunk)) {
+ status = PTR_ERR(chunk);
+ goto out;
+ }
} else if (IS_ERR(chunk)) {
- return PTR_ERR(chunk);
+ status = PTR_ERR(chunk);
+ goto out;
}
od->dq_local_off = ol_dqblk_off(sb, chunk->qc_num, offset);
od->dq_chunk = chunk;
+ status = ocfs2_extent_map_get_blocks(lqinode,
+ ol_dqblk_block(sb, chunk->qc_num, offset),
+ &od->dq_local_phys_blk,
+ &pcount,
+ NULL);
/* Initialize dquot structure on disk */
status = ocfs2_local_write_dquot(dquot);
@@ -1224,39 +1257,15 @@ static int ocfs2_create_local_dquot(struct dquot *dquot)
goto out;
}
out:
+ up_write(&OCFS2_I(lqinode)->ip_alloc_sem);
return status;
}
-/* Create entry in local file for dquot, load data from the global file */
-static int ocfs2_local_read_dquot(struct dquot *dquot)
-{
- int status;
-
- mlog_entry("id=%u, type=%d\n", dquot->dq_id, dquot->dq_type);
-
- status = ocfs2_global_read_dquot(dquot);
- if (status < 0) {
- mlog_errno(status);
- goto out_err;
- }
-
- /* Now create entry in the local quota file */
- status = ocfs2_create_local_dquot(dquot);
- if (status < 0) {
- mlog_errno(status);
- goto out_err;
- }
- mlog_exit(0);
- return 0;
-out_err:
- mlog_exit(status);
- return status;
-}
-
-/* Release dquot structure from local quota file. ocfs2_release_dquot() has
- * already started a transaction and obtained exclusive lock for global
- * quota file. */
-static int ocfs2_local_release_dquot(struct dquot *dquot)
+/*
+ * 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)
{
int status;
int type = dquot->dq_type;
@@ -1264,15 +1273,6 @@ static int ocfs2_local_release_dquot(struct dquot *dquot)
struct super_block *sb = dquot->dq_sb;
struct ocfs2_local_disk_chunk *dchunk;
int offset;
- handle_t *handle = journal_current_handle();
-
- BUG_ON(!handle);
- /* First write all local changes to global file */
- status = ocfs2_global_release_dquot(dquot);
- if (status < 0) {
- mlog_errno(status);
- goto out;
- }
status = ocfs2_journal_access_dq(handle,
INODE_CACHE(sb_dqopt(sb)->files[type]),
@@ -1305,9 +1305,6 @@ static const struct quota_format_ops ocfs2_format_ops = {
.read_file_info = ocfs2_local_read_info,
.write_file_info = ocfs2_global_write_info,
.free_file_info = ocfs2_local_free_info,
- .read_dqblk = ocfs2_local_read_dquot,
- .commit_dqblk = ocfs2_local_write_dquot,
- .release_dqblk = ocfs2_local_release_dquot,
};
struct quota_format_type ocfs2_quota_format = {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 18:24:36 +0000