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authorJeff Layton <jlayton@redhat.com>2012-12-11 12:10:15 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:09 -0500
commit49e09e1cc576daa99ea22f3a3c699062c34f8c0f (patch)
treec4f24094db83a0b24cad41ef20803e312f0fa18f /fs/xattr.c
parent68f1bb8bb89e0bb813c893a42373a26ebdab7f9c (diff)
downloadvexpress-lsk-49e09e1cc576daa99ea22f3a3c699062c34f8c0f.tar.gz
vfs: allow lsetxattr() to retry once on ESTALE errors
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 c5e90d2d751..74d36e063c8 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -394,8 +394,9 @@ SYSCALL_DEFINE5(lsetxattr, 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);
@@ -404,6 +405,10 @@ SYSCALL_DEFINE5(lsetxattr, 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;
}