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From: Michal Hocko <mhocko@suse.com>
To: "Huang, Ying" <ying.huang@intel.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Donet Tom <donettom@linux.ibm.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Mel Gorman <mgorman@suse.de>,
	Ben Widawsky <ben.widawsky@intel.com>,
	Feng Tang <feng.tang@intel.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>, Rik van Riel <riel@surriel.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Matthew Wilcox <willy@infradead.org>,
	Mike Kravetz <mike.kravetz@oracle.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Dan Williams <dan.j.williams@intel.com>,
	Hugh Dickins <hughd@google.com>,
	Kefeng Wang <wangkefeng.wang@huawei.com>,
	Suren Baghdasaryan <surenb@google.com>
Subject: Re: [PATCH 1/3] mm/mempolicy: Use the already fetched local variable
Date: Tue, 20 Feb 2024 10:03:48 +0100	[thread overview]
Message-ID: <ZdRq9EM1mDFXBiiO@tiehlicka> (raw)
In-Reply-To: <8734tnppls.fsf@yhuang6-desk2.ccr.corp.intel.com>

On Tue 20-02-24 15:22:07, Huang, Ying wrote:
[...]
> This isn't an issue now, because mpol_misplaced() are always called with
> PTL held.  And, we can still keep thiscpu local variable.

yes, this is the case but it would be better if we made that assumption
official by lockdep_assert_held

-- 
Michal Hocko
SUSE Labs


  reply	other threads:[~2024-02-20  9:03 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-17  7:31 Donet Tom
2024-02-17  7:31 ` [PATCH 3/3] mm/numa_balancing:Allow migrate on protnone reference with MPOL_PREFERRED_MANY policy Donet Tom
2024-02-19 12:07   ` Michal Hocko
2024-02-19 13:44     ` Donet Tom
2024-02-20  6:36       ` Huang, Ying
2024-02-20  6:44         ` Aneesh Kumar K.V
2024-02-20  7:23           ` Huang, Ying
2024-02-20  7:46             ` Aneesh Kumar K.V
2024-02-20  8:01               ` Huang, Ying
2024-02-19 14:20   ` Michal Hocko
2024-02-19 15:07     ` Donet Tom
2024-02-19 19:12       ` Michal Hocko
2024-02-20  3:57         ` Aneesh Kumar K.V
2024-02-20  8:48           ` Michal Hocko
2024-02-26 13:09             ` Donet Tom
2024-02-20  7:18   ` Huang, Ying
2024-02-20  7:53     ` Aneesh Kumar K.V
2024-02-20  7:58       ` Huang, Ying
2024-03-03  6:16         ` Aneesh Kumar K.V
2024-03-04  1:59           ` Huang, Ying
2024-02-18 21:38 ` [PATCH 1/3] mm/mempolicy: Use the already fetched local variable Andrew Morton
2024-02-19  8:34   ` Donet Tom
2024-02-20  1:21     ` Andrew Morton
2024-02-20  4:10       ` Aneesh Kumar K.V
2024-02-20  6:25         ` Huang, Ying
2024-02-20  6:32           ` Aneesh Kumar K.V
2024-02-20  7:03             ` Aneesh Kumar K.V
2024-02-20  7:22               ` Huang, Ying
2024-02-20  9:03                 ` Michal Hocko [this message]
2024-03-03  6:17                   ` Aneesh Kumar K.V
2024-03-04  1:49                     ` Huang, Ying
     [not found] ` <bf7e6779f842fb65cf7bb9b2c617feb2af271cb7.1708097962.git.donettom@linux.ibm.com>
2024-02-19 12:02   ` [PATCH 2/3] mm/mempolicy: Avoid the fallthrough with MPOLD_BIND in mpol_misplaced Michal Hocko
2024-02-19 15:18     ` Donet Tom

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