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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-21 02:08:32 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-21 03:50:06 +0400 |
| commit | 2771261ec5b677a38f0cd5fcfc6cefd5393787ef (patch) | |
| tree | 1977d9300293a73fa653695fbe37e6acd015cb78 | |
| parent | 0291c0a551d5b0856627f2cb294da05f122414a0 (diff) | |
| download | linux-2771261ec5b677a38f0cd5fcfc6cefd5393787ef.tar.xz | |
vfs: have chroot retry once on ESTALE error
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -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 402dfcb6720b..a13a54d3e691 100644 --- a/fs/open.c +++ b/fs/open.c @@ -445,8 +445,9 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename) { struct path path; int error; - - error = user_path_dir(filename, &path); + unsigned int lookup_flags = LOOKUP_FOLLOW | LOOKUP_DIRECTORY; +retry: + error = user_path_at(AT_FDCWD, filename, lookup_flags, &path); if (error) goto out; @@ -465,6 +466,10 @@ SYSCALL_DEFINE1(chroot, const char __user *, filename) error = 0; dput_and_out: path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } out: return error; } |