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authorJeff Layton <jlayton@redhat.com>2012-12-11 12:10:16 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:10 -0500
commit10a90cf36efe0fca5c7719fd9b0299abd6be51aa (patch)
treed294e38f08018f63909faa02f56cedefd52f95a2 /fs/xattr.c
parent3a3e159dbfe405517584b09bbcefd72115d93342 (diff)
downloadvexpress-lsk-10a90cf36efe0fca5c7719fd9b0299abd6be51aa.tar.gz
vfs: make listxattr 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 c127d57bf65..1dc1eac1731 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -576,12 +576,17 @@ SYSCALL_DEFINE3(listxattr, const char __user *, pathname, char __user *, list,
{
struct path path;
ssize_t 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 = listxattr(path.dentry, list, size);
path_put(&path);
+ if (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
return error;
}