From 4dc05efb86239321d43a9d74fd2ecd5c21bfc2ad Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 23 Sep 2008 17:28:42 -0400 Subject: [PATCH] NFS: Convert __nfs_revalidate_inode() to use nfs_refresh_inode() In the case where there are parallel RPC calls to the same inode, we may receive stale metadata due to the lack of ordering, hence the sanity checking of metadata in nfs_refresh_inode(). Currently, __nfs_revalidate_inode() is calling nfs_update_inode() directly, without any further sanity checks, and hence may end up setting the inode up with stale metadata. Fix is to use nfs_refresh_inode() instead of nfs_update_inode(). Signed-off-by: Trond Myklebust --- fs/nfs/inode.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 610d022fc7a5..697157c1fdd1 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -724,16 +724,13 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) goto out; } - spin_lock(&inode->i_lock); - status = nfs_update_inode(inode, &fattr); + status = nfs_refresh_inode(inode, &fattr); if (status) { - spin_unlock(&inode->i_lock); dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) refresh failed, error=%d\n", inode->i_sb->s_id, (long long)NFS_FILEID(inode), status); goto out; } - spin_unlock(&inode->i_lock); if (nfsi->cache_validity & NFS_INO_INVALID_ACL) nfs_zap_acl_cache(inode); -- 2.20.1