From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Minchan Kim <minchan@kernel.org>,
Brian Geffon <bgeffon@google.com>,
linux-block@vger.kernel.org, linux-mm@kvack.org,
Qu Wenruo <wqu@suse.com>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2] zram: do not forget to endio for partial discard requests
Date: Tue, 31 Mar 2026 16:40:22 +0900 [thread overview]
Message-ID: <act6COjXXZecVwQM@google.com> (raw)
In-Reply-To: <20260331073737.774503-1-senozhatsky@chromium.org>
On (26/03/31 16:35), Sergey Senozhatsky wrote:
> As reported by Qu Wenruo, the following
>
> getconf PAGESIZE
> 65536
> blkdiscard -p 4k /dev/zram0
>
> takes literally forever to complete. zram doesn't support
> partial discards and just returns immediately w/o doing any
> discard work in such cases. The problem is that we forget
> to endio on our way out, so blkdiscard sleeps forever in
> submit_bio_wait(). Fix this by adding a missing bio_endio()
> call.
The last sentence should be something like "Fix this by jumping to endio
label which calls bio_endio()"
prev parent reply other threads:[~2026-03-31 7:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-31 7:35 [PATCH v2] zram: do not forget to endio for partial discard requests Sergey Senozhatsky
2026-03-31 7:40 ` Qu Wenruo
2026-03-31 7:43 ` Sergey Senozhatsky
2026-03-31 7:40 ` Sergey Senozhatsky [this message]
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