From: Matthew Wilcox <willy@infradead.org>
To: yangshiguang1011@163.com
Cc: harry.yoo@oracle.com, vbabka@suse.cz, akpm@linux-foundation.org,
cl@gentwo.org, rientjes@google.com, roman.gushchin@linux.dev,
glittao@gmail.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
yangshiguang <yangshiguang@xiaomi.com>,
stable@vger.kernel.org
Subject: Re: [PATCH v3] mm: slub: avoid wake up kswapd in set_track_prepare
Date: Mon, 25 Aug 2025 13:40:07 +0100 [thread overview]
Message-ID: <aKxZp_GgYVzp8Uvt@casper.infradead.org> (raw)
In-Reply-To: <20250825121737.2535732-1-yangshiguang1011@163.com>
On Mon, Aug 25, 2025 at 08:17:37PM +0800, yangshiguang1011@163.com wrote:
> Avoid deadlock caused by implicitly waking up kswapd by
> passing in allocation flags.
[...]
> + /* Preemption is disabled in ___slab_alloc() */
> + gfp_flags &= ~(__GFP_DIRECT_RECLAIM);
If you don't mean __GFP_KSWAPD_RECLAIM here, the explanation needs to
be better.
next prev parent reply other threads:[~2025-08-25 12:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-25 12:17 [PATCH v3] mm: slub: avoid wake up kswapd in set_track_prepare yangshiguang1011
2025-08-25 12:40 ` Matthew Wilcox [this message]
2025-08-25 15:42 ` Vlastimil Babka
2025-08-27 5:17 ` Harry Yoo
2025-08-27 7:45 ` yangshiguang
2025-08-27 8:40 ` Vlastimil Babka
[not found] ` <4d271e7e.6bea.198f596bd15.Coremail.yangshiguang1011@163.com>
2025-08-29 13:08 ` Vlastimil Babka
2025-08-30 1:48 ` yangshiguang
2025-08-27 8:00 ` Vlastimil Babka
2025-08-27 8:44 ` Vlastimil Babka
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