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ocfs2: add duplicated ino number check 

Add duplicated ino number check, to avoid adding a file into the file
check list when this file is being checked.

Link: http://lkml.kernel.org/r/1495611866-27360-5-git-send-email-ghe@suse.com
Signed-off-by: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Gang He 2018-04-05 16:19:32 -07:00 committed by Linus Torvalds
parent 5f483c4abb
commit 39ec3774e3
1 changed files with 20 additions and 1 deletions
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21
fs/ocfs2/filecheck.c
View File

@ -353,6 +353,22 @@ static ssize_t ocfs2_filecheck_attr_show(struct kobject *kobj,
return total;
}
static inline int
ocfs2_filecheck_is_dup_entry(struct ocfs2_filecheck_sysfs_entry *ent,
unsigned long ino)
{
struct ocfs2_filecheck_entry *p;
list_for_each_entry(p, &ent->fs_fcheck->fc_head, fe_list) {
if (!p->fe_done) {
if (p->fe_ino == ino)
return 1;
}
}
return 0;
}
static inline int
ocfs2_filecheck_erase_entry(struct ocfs2_filecheck_sysfs_entry *ent)
{
@ -467,7 +483,10 @@ static ssize_t ocfs2_filecheck_attr_store(struct kobject *kobj,
}
spin_lock(&ent->fs_fcheck->fc_lock);
if ((ent->fs_fcheck->fc_size >= ent->fs_fcheck->fc_max) &&
if (ocfs2_filecheck_is_dup_entry(ent, args.fa_ino)) {
ret = -EEXIST;
kfree(entry);
} else if ((ent->fs_fcheck->fc_size >= ent->fs_fcheck->fc_max) &&
(ent->fs_fcheck->fc_done == 0)) {
mlog(ML_NOTICE,
"Cannot do more file check "