[PATCH] knfsd: nfsd: lockdep annotation fix

nfsv2 needs the I_MUTEX_PARENT on the directory when creating a file too.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 06cd0db0f32b306dd34dbf1462fdd74b63ecf38f..4e06810b6104a684e69874fc54479ea1e4a7ed22 100644 (file)
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -225,7 +225,7 @@ nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
        nfserr = nfserr_exist;
        if (isdotent(argp->name, argp->len))
                goto done;
-       fh_lock(dirfhp);
+       fh_lock_nested(dirfhp, I_MUTEX_PARENT);
        dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len);
        if (IS_ERR(dchild)) {
                nfserr = nfserrno(PTR_ERR(dchild));