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authorJoseph Qi <joseph.qi@huawei.com>2015-11-05 18:44:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-05 19:34:48 -0800
commit30edc43c7ff0760f6896c37c06a84533546588fa (patch)
tree8efec5a760541f77cba67c9eba9b783e36313d44 /fs/ocfs2
parent1d1aff8cf367d2216a678c722161784e207965c4 (diff)
downloadlinux-30edc43c7ff0760f6896c37c06a84533546588fa.tar.bz2
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/ocfs2')
-rw-r--r--fs/ocfs2/journal.c15
-rw-r--r--fs/ocfs2/namei.c2
-rw-r--r--fs/ocfs2/namei.h3
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);