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| author | Joseph Qi <joseph.qi@huawei.com> | 2015-11-06 03:44:01 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-06 04:34:48 +0100 |
| commit | 30edc43c7ff0760f6896c37c06a84533546588fa (patch) | |
| tree | 8efec5a760541f77cba67c9eba9b783e36313d44 /fs | |
| parent | ocfs2: improve performance for localalloc (diff) | |
| download | linux-30edc43c7ff0760f6896c37c06a84533546588fa.tar.xz linux-30edc43c7ff0760f6896c37c06a84533546588fa.zip | |
ocfs2: do not include dio entry in case of orphan scan
dio entry will only do truncate in case of ORPHAN_NEED_TRUNCATE. So do
not include it when doing normal orphan scan to reduce contention.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ocfs2/journal.c | 15 | ||||
| -rw-r--r-- | fs/ocfs2/namei.c | 2 | ||||
| -rw-r--r-- | fs/ocfs2/namei.h | 3 |
3 files changed, 15 insertions, 5 deletions
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index ff82b28462a6..4bac6007837d 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -2021,6 +2021,7 @@ struct ocfs2_orphan_filldir_priv { struct dir_context ctx; struct inode *head; struct ocfs2_super *osb; + enum ocfs2_orphan_reco_type orphan_reco_type; }; static int ocfs2_orphan_filldir(struct dir_context *ctx, const char *name, @@ -2036,6 +2037,12 @@ static int ocfs2_orphan_filldir(struct dir_context *ctx, const char *name, if (name_len == 2 && !strncmp("..", name, 2)) return 0; + /* do not include dio entry in case of orphan scan */ + if ((p->orphan_reco_type == ORPHAN_NO_NEED_TRUNCATE) && + (!strncmp(name, OCFS2_DIO_ORPHAN_PREFIX, + OCFS2_DIO_ORPHAN_PREFIX_LEN))) + return 0; + /* Skip bad inodes so that recovery can continue */ iter = ocfs2_iget(p->osb, ino, OCFS2_FI_FLAG_ORPHAN_RECOVERY, 0); @@ -2060,14 +2067,16 @@ static int ocfs2_orphan_filldir(struct dir_context *ctx, const char *name, static int ocfs2_queue_orphans(struct ocfs2_super *osb, int slot, - struct inode **head) + struct inode **head, + enum ocfs2_orphan_reco_type orphan_reco_type) { int status; struct inode *orphan_dir_inode = NULL; struct ocfs2_orphan_filldir_priv priv = { .ctx.actor = ocfs2_orphan_filldir, .osb = osb, - .head = *head + .head = *head, + .orphan_reco_type = orphan_reco_type }; orphan_dir_inode = ocfs2_get_system_file_inode(osb, @@ -2170,7 +2179,7 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb, trace_ocfs2_recover_orphans(slot); ocfs2_mark_recovering_orphan_dir(osb, slot); - ret = ocfs2_queue_orphans(osb, slot, &inode); + ret = ocfs2_queue_orphans(osb, slot, &inode, orphan_reco_type); ocfs2_clear_recovering_orphan_dir(osb, slot); /* Error here should be noted, but we want to continue with as diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index b7dfac226b1e..1206392a071f 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -106,8 +106,6 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2); /* An orphan dir name is an 8 byte value, printed as a hex string */ #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64))) -#define OCFS2_DIO_ORPHAN_PREFIX "dio-" -#define OCFS2_DIO_ORPHAN_PREFIX_LEN 4 static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags) diff --git a/fs/ocfs2/namei.h b/fs/ocfs2/namei.h index e173329eb830..1155918d6784 100644 --- a/fs/ocfs2/namei.h +++ b/fs/ocfs2/namei.h @@ -26,6 +26,9 @@ #ifndef OCFS2_NAMEI_H #define OCFS2_NAMEI_H +#define OCFS2_DIO_ORPHAN_PREFIX "dio-" +#define OCFS2_DIO_ORPHAN_PREFIX_LEN 4 + extern const struct inode_operations ocfs2_dir_iops; struct dentry *ocfs2_get_parent(struct dentry *child); |