diff options
| author | Jeff Layton <jlayton@redhat.com> | 2012-12-11 12:10:08 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:50:03 -0500 |
| commit | f46d3567b223e41e1f2faeb82d3b74a6d84fc508 (patch) | |
| tree | 5b73c9e1db587472fa0d514fbb8cb8d009429720 | |
| parent | b76d8b82266077dc7098dd13f321a616099a1bd8 (diff) | |
vfs: fix symlinkat to retry 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/namei.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/namei.c b/fs/namei.c index 1beebc1a38c..b06a111591a 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3521,12 +3521,13 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname, struct filename *from; struct dentry *dentry; struct path path; + unsigned int lookup_flags = 0; from = getname(oldname); if (IS_ERR(from)) return PTR_ERR(from); - - dentry = user_path_create(newdfd, newname, &path, 0); +retry: + dentry = user_path_create(newdfd, newname, &path, lookup_flags); error = PTR_ERR(dentry); if (IS_ERR(dentry)) goto out_putname; @@ -3535,6 +3536,10 @@ SYSCALL_DEFINE3(symlinkat, const char __user *, oldname, if (!error) error = vfs_symlink(path.dentry->d_inode, dentry, from->name); done_path_create(&path, dentry); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } out_putname: putname(from); return error; |