From: Huang Shijie <shijie8@xxxxxxxxx>
Update the mnt of the path when it is not equal to the new one.
Signed-off-by: Huang Shijie <shijie8@xxxxxxxxx>
Reviewed-by: WANG Cong <xiyou.wangcong@xxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/namei.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff -puN fs/namei.c~nameic-update-mnt-when-it-needed fs/namei.c
--- a/fs/namei.c~nameic-update-mnt-when-it-needed
+++ a/fs/namei.c
@@ -523,9 +523,10 @@ static void path_put_conditional(struct
static inline void path_to_nameidata(struct path *path, struct nameidata *nd)
{
dput(nd->path.dentry);
- if (nd->path.mnt != path->mnt)
+ if (nd->path.mnt != path->mnt) {
mntput(nd->path.mnt);
- nd->path.mnt = path->mnt;
+ nd->path.mnt = path->mnt;
+ }
nd->path.dentry = path->dentry;
}
_
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