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authorJeff Layton <jlayton@redhat.com>2012-12-11 12:10:18 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:11 -0500
commitb729d75d19777a5dd34672020516eada43ff026f (patch)
treeb5419b7700f6763a96d3e41b0e5beb193e6ca551 /fs/xattr.c
parent12f06212990400db1b54bd7b49b7f6f5f1b32469 (diff)
downloadvexpress-lsk-b729d75d19777a5dd34672020516eada43ff026f.tar.gz
vfs: make lremovexattr retry once on ESTALE error
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 4caa8efeada..3377dff1840 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -668,8 +668,9 @@ SYSCALL_DEFINE2(lremovexattr, const char __user *, pathname,
{
struct path path;
int error;
-
- error = user_lpath(pathname, &path);
+ unsigned int lookup_flags = 0;
+retry:
+ error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path);
if (error)
return error;
error = mnt_want_write(path.mnt);
@@ -678,6 +679,10 @@ SYSCALL_DEFINE2(lremovexattr, 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;
}