From aaae3f00d3f67f681a1f3cb7af999e976e8a24ce Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 20 Aug 2015 18:56:07 -0500 Subject: [PATCH] NFSv4: Force a post-op attribute update when holding a delegation If the ctime or mtime or change attribute have changed because of an operation we initiated, we should make sure that we force an attribute update. However we do not want to mark the page cache for revalidation. Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org # v4.0+ --- fs/nfs/inode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 2744d48bbbfe..e2cc0031decb 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1477,6 +1477,13 @@ static int nfs_post_op_update_inode_locked(struct inode *inode, struct nfs_fattr { unsigned long invalid = NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; + /* + * Don't revalidate the pagecache if we hold a delegation, but do + * force an attribute update + */ + if (NFS_PROTO(inode)->have_delegation(inode, FMODE_READ)) + invalid = NFS_INO_INVALID_ATTR|NFS_INO_REVAL_FORCED; + if (S_ISDIR(inode->i_mode)) invalid |= NFS_INO_INVALID_DATA; nfs_set_cache_invalid(inode, invalid); -- 2.20.1