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[v2,10/19] NFSv4: Enable attribute delegations

Message ID 20240617012137.674046-11-trondmy@kernel.org (mailing list archive)
State New
Headers show
Series OPEN optimisations and Attribute delegations | expand

Commit Message

Trond Myklebust June 17, 2024, 1:21 a.m. UTC 
From: Trond Myklebust <trond.myklebust@primarydata.com>

If we see that the server supports attribute delegations, then request
them by setting the appropriate OPEN arguments.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Lance Shelton <lance.shelton@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
 fs/nfs/nfs4proc.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 03835c8a180f..1209ce22158e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1339,8 +1339,13 @@  nfs4_map_atomic_open_share(struct nfs_server *server,
 	if (!(server->caps & NFS_CAP_ATOMIC_OPEN_V1))
 		goto out;
 	/* Want no delegation if we're using O_DIRECT */
-	if (openflags & O_DIRECT)
+	if (openflags & O_DIRECT) {
 		res |= NFS4_SHARE_WANT_NO_DELEG;
+		goto out;
+	}
+	/* res |= NFS4_SHARE_WANT_NO_PREFERENCE; */
+	if (server->caps & NFS_CAP_DELEGTIME)
+		res |= NFS4_SHARE_WANT_DELEG_TIMESTAMPS;
 out:
 	return res;
 }