From: trondmy@kernel.org
To: linux-nfs@vger.kernel.org
Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org
Subject: [RFC PATCH 0/3] Initial NFS client support for RWF_DONTCACHE
Date: Wed, 23 Apr 2025 00:25:29 -0400 [thread overview]
Message-ID: <cover.1745381692.git.trond.myklebust@hammerspace.com> (raw)
From: Trond Myklebust <trond.myklebust@hammerspace.com>
The following patch set attempts to add support for the RWF_DONTCACHE
flag in preadv2() and pwritev2() on NFS filesystems.
The main issue is allowing support on 2 stage writes (i.e. unstable
WRITE followed by a COMMIT) since those don't follow the current
assumption that the 'dropbehind' flag can be fulfilled as soon as the
writeback lock is dropped.
Trond Myklebust (3):
filemap: Add a helper for filesystems implementing dropbehind
filemap: Mark folios as dropbehind in generic_perform_write()
NFS: Enable the RWF_DONTCACHE flag for the NFS client
fs/nfs/file.c | 2 ++
fs/nfs/nfs4file.c | 2 ++
fs/nfs/write.c | 12 +++++++++++-
include/linux/nfs_page.h | 1 +
include/linux/pagemap.h | 1 +
mm/filemap.c | 21 +++++++++++++++++++++
6 files changed, 38 insertions(+), 1 deletion(-)
--
2.49.0
next reply other threads:[~2025-04-23 4:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-23 4:25 trondmy [this message]
2025-04-23 4:25 ` [RFC PATCH 1/3] filemap: Add a helper for filesystems implementing dropbehind trondmy
2025-04-24 21:30 ` Mike Snitzer
2025-04-23 4:25 ` [RFC PATCH 2/3] filemap: Mark folios as dropbehind in generic_perform_write() trondmy
2025-04-24 21:30 ` Mike Snitzer
2025-04-23 4:25 ` [RFC PATCH 3/3] NFS: Enable the RWF_DONTCACHE flag for the NFS client trondmy
2025-04-24 21:31 ` Mike Snitzer
2025-04-23 14:38 ` [RFC PATCH 0/3] Initial NFS client support for RWF_DONTCACHE Chuck Lever
2025-04-23 15:22 ` Matthew Wilcox
2025-04-23 15:30 ` Chuck Lever
2025-04-24 16:51 ` Mike Snitzer
2025-04-24 16:59 ` Chuck Lever
2025-04-24 21:29 ` [PATCH 4/3] NFS: add RWF_DONTCACHE support to LOCALIO Mike Snitzer
2025-07-14 6:22 ` [RFC PATCH 0/3] Initial NFS client support for RWF_DONTCACHE Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cover.1745381692.git.trond.myklebust@hammerspace.com \
--to=trondmy@kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-nfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).