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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-11 21:10:13 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-21 03:50:07 +0400 |
| commit | 14ff690c0f94cf2e37f7c448f4f09bf0b4006d62 (patch) | |
| tree | 83c17757de4b9c7899360bca6328a2670cc14703 /fs | |
| parent | 2771261ec5b677a38f0cd5fcfc6cefd5393787ef (diff) | |
| download | linux-14ff690c0f94cf2e37f7c448f4f09bf0b4006d62.tar.xz | |
vfs: make fchmodat 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')
| -rw-r--r-- | fs/open.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/open.c b/fs/open.c index a13a54d3e691..99c3ce5f897b 100644 --- a/fs/open.c +++ b/fs/open.c @@ -514,11 +514,16 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode { struct path path; int error; - - error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path); + unsigned int lookup_flags = LOOKUP_FOLLOW; +retry: + error = user_path_at(dfd, filename, lookup_flags, &path); if (!error) { error = chmod_common(&path, mode); path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } } return error; } |