linux-kernel - Re: [f2fs-dev] [PATCH v3] loop: avoid EAGAIN, if offset or block

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Message-ID: <898950e4-3759-c78e-dd5d-422af9f8c507@acm.org>
Date:   Wed, 27 Nov 2019 10:54:40 -0800
From:   Bart Van Assche <bvanassche@....org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [f2fs-dev] [PATCH v3] loop: avoid EAGAIN, if offset or block_size
 are changed

On 11/27/19 10:18 AM, Jaegeuk Kim wrote:
> Previously, there was a bug where user could see stale buffer cache (e.g, 512B)
> attached in the 4KB-sized pager cache, when the block size was changed from
> 512B to 4KB. That was fixed by:
> commit 5db470e229e2 ("loop: drop caches if offset or block_size are changed")

[ ... ]

Reviewed-by: Bart Van Assche <bvanassche@....org>