From: Sasha Levin <sashal@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
Mikhail Dmitrichenko <mdmitrichenko@astralinux.ru>,
Kent Overstreet <kent.overstreet@linux.dev>,
linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org,
lvc-project@linuxtesting.org
Subject: Re: [PATCH 6.12] bcachefs: avoid truncating fiemap extent length
Date: Fri, 3 Jul 2026 22:05:22 -0400 [thread overview]
Message-ID: <2026070315-stable-reply-0028@kernel.org> (raw)
In-Reply-To: <20260703114813.113406-1-mdmitrichenko@astralinux.ru>
On Thu, Jul 03, 2026 at 02:48:13PM +0300, Mikhail Dmitrichenko wrote:
> No upstream commit exists for this patch.
>
> bkey sizes are stored in sectors as u32, while fiemap reports byte
> lengths as u64. Shifting k.k->size before widening performs the
> conversion in 32 bits, so an extent of 4 GiB or larger can wrap before
> it is passed to fiemap_fill_next_extent().
Thanks for the patch, happy to take it if we can get an ack from the bcachefs
maintainers.
--
Thanks,
Sasha
next prev parent reply other threads:[~2026-07-04 2:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-03 11:48 [PATCH 6.12] bcachefs: avoid truncating fiemap extent length Mikhail Dmitrichenko
2026-07-04 2:05 ` Sasha Levin [this message]
2026-07-04 14:49 ` Kent Overstreet
2026-07-05 14:33 ` Sasha Levin
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