From: Christoph Hellwig <hch@infradead.org>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v3] f2fs: do not support mmap write for large folio
Date: Wed, 8 Apr 2026 22:40:26 -0700 [thread overview]
Message-ID: <adc7yo1_sr_eeV33@infradead.org> (raw)
In-Reply-To: <adaasm42rLxRY2GN@google.com>
[adding back fsdevel and mm to the discussion]
On Wed, Apr 08, 2026 at 06:13:06PM +0000, Jaegeuk Kim wrote:
> Let's check mmap writes onto the large folio, since we don't support writing
> large folios.
What does this fix? As state in the previous round of discussion f2fs
only support large folios for immutable files, how do you get ->mkwrite
called for them.
The only way I can think of that is when clearing the immutable flag,
but simply rejecting writes with SIGBUS after that seems like it's
breaking the expected API, and I don't see handling for normal writes
after that either.
parent reply other threads:[~2026-04-09 5:40 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <adaasm42rLxRY2GN@google.com>]
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