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Message-ID: <CAB9dFdt0haftd1LPo=_GmtcZvFR84w81eaARfUKW2KMSM5gxqg@mail.gmail.com>
Date: Tue, 9 Jan 2024 13:11:39 -0400
From: Marc Dionne <marc.dionne@...istor.com>
To: David Howells <dhowells@...hat.com>
Cc: Christian Brauner <christian@...uner.io>, Jeff Layton <jlayton@...nel.org>,
Gao Xiang <hsiangkao@...ux.alibaba.com>, Dominique Martinet <asmadeus@...ewreck.org>,
Steve French <smfrench@...il.com>, Matthew Wilcox <willy@...radead.org>,
Paulo Alcantara <pc@...guebit.com>, Shyam Prasad N <sprasad@...rosoft.com>, Tom Talpey <tom@...pey.com>,
Eric Van Hensbergen <ericvh@...nel.org>, Ilya Dryomov <idryomov@...il.com>, linux-cachefs@...hat.com,
linux-afs@...ts.infradead.org, linux-cifs@...r.kernel.org,
linux-nfs@...r.kernel.org, ceph-devel@...r.kernel.org, v9fs@...ts.linux.dev,
linux-erofs@...ts.ozlabs.org, linux-fsdevel@...r.kernel.org,
linux-mm@...ck.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] netfs, cachefiles: More additional patches
On Tue, Jan 9, 2024 at 7:20 AM David Howells <dhowells@...hat.com> wrote:
>
> Hi Christian, Jeff, Gao,
>
> Here are some additional patches for my netfs-lib tree:
>
> (1) Mark netfs_unbuffered_write_iter_locked() static as it's only used in
> the file in which it is defined.
>
> (2) Display a counter for DIO writes in /proc/fs/netfs/stats.
>
> (3) Fix the interaction between write-streaming (dirty data in
> non-uptodate pages) and the culling of a cache file trying to write
> that to the cache.
>
> (4) Fix the loop that unmarks folios after writing to the cache. The
> xarray iterator only advances the index by 1, so if we unmarked a
> multipage folio and that got split before we advance to the next
> folio, we see a repeat of a fragment of the folio.
>
> (5) Fix a mixup with signed/unsigned offsets when prepping for writing to
> the cache that leads to missing error detection.
>
> (6) Fix a wrong ifdef hiding a wait.
>
> David
>
> The netfslib postings:
> Link: https://lore.kernel.org/r/20231013160423.2218093-1-dhowells@redhat.com/ # v1
> Link: https://lore.kernel.org/r/20231117211544.1740466-1-dhowells@redhat.com/ # v2
> Link: https://lore.kernel.org/r/20231207212206.1379128-1-dhowells@redhat.com/ # v3
> Link: https://lore.kernel.org/r/20231213152350.431591-1-dhowells@redhat.com/ # v4
> Link: https://lore.kernel.org/r/20231221132400.1601991-1-dhowells@redhat.com/ # v5
> Link: https://lore.kernel.org/r/20240103145935.384404-1-dhowells@redhat.com/ # added patches
>
> David Howells (6):
> netfs: Mark netfs_unbuffered_write_iter_locked() static
> netfs: Count DIO writes
> netfs: Fix interaction between write-streaming and cachefiles culling
> netfs: Fix the loop that unmarks folios after writing to the cache
> cachefiles: Fix signed/unsigned mixup
> netfs: Fix wrong #ifdef hiding wait
>
> fs/cachefiles/io.c | 18 +++++++++---------
> fs/netfs/buffered_write.c | 27 ++++++++++++++++++++++-----
> fs/netfs/direct_write.c | 5 +++--
> fs/netfs/fscache_stats.c | 9 ++++++---
> fs/netfs/internal.h | 8 ++------
> fs/netfs/io.c | 2 +-
> fs/netfs/stats.c | 13 +++++++++----
> include/linux/fscache-cache.h | 3 +++
> include/linux/netfs.h | 1 +
> 9 files changed, 56 insertions(+), 30 deletions(-)
>
> --
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This passes our kafs tests where a few of the issues fixed here had been seen.
I made the framework use 9p and no related issues were seen there either.
Tested-by: Marc Dionne <marc.dionne@...istor.com>
Marc
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