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authorJeff Layton <jlayton@redhat.com>2012-12-11 12:10:17 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:10 -0500
commit12f06212990400db1b54bd7b49b7f6f5f1b32469 (patch)
tree5827504989d57e2f31613aac63f46d2e2781a964 /fs/xattr.c
parentbd9bbc9842bde1b14046cdbda1153f0d49061135 (diff)
downloadvexpress-lsk-12f06212990400db1b54bd7b49b7f6f5f1b32469.tar.gz
vfs: make removexattr retry once on ESTALE
Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xattr.c')
-rw-r--r--fs/xattr.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/xattr.c b/fs/xattr.c
index 49d09e15880..4caa8efeada 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -645,8 +645,9 @@ SYSCALL_DEFINE2(removexattr, const char __user *, pathname,
{
struct path path;
int error;
-
- error = user_path(pathname, &path);
+ unsigned int lookup_flags = LOOKUP_FOLLOW;
+retry:
+ error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path);
if (error)
return error;
error = mnt_want_write(path.mnt);
@@ -655,6 +656,10 @@ SYSCALL_DEFINE2(removexattr, const char __user *, pathname,
mnt_drop_write(path.mnt);
}
path_put(&path);
+ if (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
return error;
}