From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: stable@vger.kernel.org
Cc: Minchan Kim <minchan@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Kyeongdon Kim <kyeongdon.kim@lge.com>,
linux-kernel@vger.kernel.org,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Subject: [stable] upstream 3d5fe03a3ea01 -stable backport request
Date: Mon, 25 Jan 2016 21:46:54 +0900 [thread overview]
Message-ID: <20160125124654.GA526@swordfish> (raw)
Hello,
Please add upstream 'commit 3d5fe03a3ea01 ("zram/zcomp: use
GFP_NOIO to allocate streams")' to stable releases.
:commit 3d5fe03a3ea013060ebba2a811aeb0f23f56aefa
:Author: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
:
: zram/zcomp: use GFP_NOIO to allocate streams
:
: We can end up allocating a new compression stream with GFP_KERNEL from
: within the IO path, which may result is nested (recursive) IO
: operations. That can introduce problems if the IO path in question is a
: reclaimer, holding some locks that will deadlock nested IOs.
:
: Allocate streams and working memory using GFP_NOIO flag, forbidding
: recursive IO and FS operations.
-ss
next reply other threads:[~2016-01-25 12:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 12:46 Sergey Senozhatsky [this message]
2016-01-25 13:01 ` [stable] upstream 3d5fe03a3ea01 -stable backport request Sergey Senozhatsky
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