From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
Christian Brauner <brauner@kernel.org>,
Carlos Maiolino <cem@kernel.org>,
Tal Zussman <tz2294@columbia.edu>,
Anuj Gupta <anuj20.g@samsung.com>,
linux-block@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 01/22] iomap: add a separate bio_set for iomap_split_ioend
Date: Fri, 24 Jul 2026 08:22:32 +0200 [thread overview]
Message-ID: <20260724062232.GC4953@lst.de> (raw)
In-Reply-To: <20260723164907.GA2901224@frogsfrogsfrogs>
On Thu, Jul 23, 2026 at 09:49:07AM -0700, Darrick J. Wong wrote:
> On Thu, Jul 23, 2026 at 04:49:26PM +0200, Christoph Hellwig wrote:
> > iomap_split_ioend can split bios that already come from
> > iomap_ioend_bioset and thus deadlock when the bioset is exhausted.
> >
> > Add a separate bio_set to avoid this deadlock.
> >
> > Fixes: 5fcbd555d483 ("iomap: split bios to zone append limits in the submission handlers")
> > Signed-off-by: Christoph Hellwig <hch@lst.de>
>
> Cc: <stable@vger.kernel.org> # v6.15
> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Note that this already is queued up in the vfs iomap branch for 7.3.
I've been begging to get іt queued up for 7.2, but so far I've not
even managed to a reply to that.
next prev parent reply other threads:[~2026-07-24 6:22 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-23 14:49 lazy bounce buffering for checksummed reads Christoph Hellwig
2026-07-23 14:49 ` [PATCH 01/22] iomap: add a separate bio_set for iomap_split_ioend Christoph Hellwig
2026-07-23 16:49 ` Darrick J. Wong
2026-07-24 6:22 ` Christoph Hellwig [this message]
2026-07-23 14:49 ` [PATCH 02/22] block: remove bip_should_check Christoph Hellwig
2026-07-23 14:49 ` [PATCH 03/22] block: lift BIP_CHECK_FLAGS to include/linux/bio-integrity.h Christoph Hellwig
2026-07-23 14:49 ` [PATCH 04/22] block: handle nogenerate/noverify properly in fs-integrity Christoph Hellwig
2026-07-23 17:05 ` Anuj gupta
2026-07-23 14:49 ` [PATCH 05/22] iomap: don't free integrity payload that doesn't exist Christoph Hellwig
2026-07-23 16:55 ` Darrick J. Wong
2026-07-23 14:49 ` [PATCH 06/22] block,iomap: fix protection information verification with initial bvec offset Christoph Hellwig
2026-07-23 14:49 ` [PATCH 07/22] block: add task-context bio completion infrastructure Christoph Hellwig
2026-07-23 14:49 ` [PATCH 08/22] block: don't delay bio task completions Christoph Hellwig
2026-07-23 14:49 ` [PATCH 09/22] block: split bio_iov_iter_bounce_write Christoph Hellwig
2026-07-23 14:49 ` [PATCH 10/22] block: export fs_bio_integrity_{alloc,free} Christoph Hellwig
2026-07-23 14:49 ` [PATCH 11/22] block: don't include blk-integrity.h in bdev.c Christoph Hellwig
2026-07-23 14:49 ` [PATCH 12/22] iomap: better read bounce buffering support Christoph Hellwig
2026-07-23 21:10 ` Darrick J. Wong
2026-07-24 6:26 ` Christoph Hellwig
2026-07-23 14:49 ` [PATCH 13/22] iomap: add a iomap_ioend_flags helper Christoph Hellwig
2026-07-23 20:52 ` Darrick J. Wong
2026-07-23 14:49 ` [PATCH 14/22] iomap: add a IOMAP_IOEND_INTEGRITY flag Christoph Hellwig
2026-07-23 20:53 ` Darrick J. Wong
2026-07-23 14:49 ` [PATCH 15/22] iomap,xfs: move T10 PI handling for direct I/O into ->submit_io Christoph Hellwig
2026-07-23 20:55 ` Darrick J. Wong
2026-07-23 14:49 ` [PATCH 16/22] xfs: move PI generation into xfs_zone_alloc_and_submit Christoph Hellwig
2026-07-23 20:55 ` Darrick J. Wong
2026-07-23 14:49 ` [PATCH 17/22] xfs: split ioend handling into a separate source file Christoph Hellwig
2026-07-23 20:55 ` Darrick J. Wong
2026-07-23 14:49 ` [PATCH 18/22] xfs: use BIO_COMPLETE_IN_TASK for bounce buffered read I/Os Christoph Hellwig
2026-07-23 15:58 ` Andrey Albershteyn
2026-07-24 6:21 ` Christoph Hellwig
2026-07-23 20:58 ` Darrick J. Wong
2026-07-24 6:21 ` Christoph Hellwig
2026-07-23 14:49 ` [PATCH 19/22] iomap,xfs: move integrity verification to the file system Christoph Hellwig
2026-07-23 21:02 ` Darrick J. Wong
2026-07-24 6:23 ` Christoph Hellwig
2026-07-23 14:49 ` [PATCH 20/22] xfs: add support for lazy direct read bounce buffering Christoph Hellwig
2026-07-23 21:05 ` Darrick J. Wong
2026-07-24 6:24 ` Christoph Hellwig
2026-07-24 6:33 ` Christoph Hellwig
2026-07-23 14:49 ` [PATCH 21/22] xfs: add error injection for lazy " Christoph Hellwig
2026-07-23 21:06 ` Darrick J. Wong
2026-07-23 14:49 ` [PATCH 22/22] xfs: log a message at mount time when using integrity protection Christoph Hellwig
2026-07-23 21:07 ` Darrick J. Wong
2026-07-24 6:25 ` Christoph Hellwig
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