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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-11 12:10:11 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:50:05 -0500 |
| commit | 48f7530d3f722617aa7cfea62b09b0c1a8d0173e (patch) | |
| tree | 3da3fbe9ec3d8f1f50679fc6d030d90d757c7b59 /fs | |
| parent | c6a9428401c00a27d3c17264934d14e284570c97 (diff) | |
| download | lwn-48f7530d3f722617aa7cfea62b09b0c1a8d0173e.tar.gz lwn-48f7530d3f722617aa7cfea62b09b0c1a8d0173e.zip | |
vfs: have do_sys_truncate retry once on an ESTALE error
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 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/open.c b/fs/open.c index c819bbdab47f..07449b911a4d 100644 --- a/fs/open.c +++ b/fs/open.c @@ -115,17 +115,23 @@ EXPORT_SYMBOL_GPL(vfs_truncate); static long do_sys_truncate(const char __user *pathname, loff_t length) { + unsigned int lookup_flags = LOOKUP_FOLLOW; struct path path; int error; if (length < 0) /* sorry, but loff_t says... */ return -EINVAL; - error = user_path(pathname, &path); +retry: + error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path); if (!error) { error = vfs_truncate(&path, length); path_put(&path); } + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } return error; } |