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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-11 18:10:15 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-21 00:50:08 +0100 |
| commit | 68f1bb8bb89e0bb813c893a42373a26ebdab7f9c (patch) | |
| tree | 45be5b0fc0e490488a1e6c82fc7c51148edff8cb | |
| parent | vfs: allow utimensat() calls to retry once on an ESTALE error (diff) | |
| download | linux-68f1bb8bb89e0bb813c893a42373a26ebdab7f9c.tar.xz linux-68f1bb8bb89e0bb813c893a42373a26ebdab7f9c.zip | |
vfs: allow setxattr to retry once on ESTALE errors
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/xattr.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/xattr.c b/fs/xattr.c index e21c119f4f99..c5e90d2d751f 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -370,8 +370,9 @@ SYSCALL_DEFINE5(setxattr, 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); @@ -380,6 +381,10 @@ SYSCALL_DEFINE5(setxattr, 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; } |