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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-11 12:10:12 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:50:06 -0500 |
| commit | 0291c0a551d5b0856627f2cb294da05f122414a0 (patch) | |
| tree | 1dce5d588af3ddc3d8c61fdc3a02e921830b75e7 | |
| parent | 87fa55952b7347175c6e2f03874869ad2c055adb (diff) | |
| download | linux-0291c0a551d5b0856627f2cb294da05f122414a0.tar.bz2 | |
vfs: have chdir retry lookup and call 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 a994ccf39b40..402dfcb6720b 100644 --- a/fs/open.c +++ b/fs/open.c @@ -394,8 +394,9 @@ SYSCALL_DEFINE1(chdir, 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; @@ -407,6 +408,10 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename) dput_and_out: path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } out: return error; } |