From: Jason Gunthorpe <jgg@ziepe.ca>
To: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
akpm@linux-foundation.org, vbabka@suse.cz, mhocko@suse.com,
david@redhat.com, osalvador@suse.de, dan.j.williams@intel.com,
sashal@kernel.org, tyhicks@linux.microsoft.com,
iamjoonsoo.kim@lge.com, mike.kravetz@oracle.com,
rostedt@goodmis.org, mingo@redhat.com, peterz@infradead.org,
mgorman@suse.de, willy@infradead.org, rientjes@google.com,
jhubbard@nvidia.com, linux-doc@vger.kernel.org
Subject: Re: [PATCH v3 5/6] mm/gup: migrate pinned pages out of movable zone
Date: Fri, 11 Dec 2020 16:23:54 -0400 [thread overview]
Message-ID: <20201211202354.GA2225686@ziepe.ca> (raw)
In-Reply-To: <20201211202140.396852-6-pasha.tatashin@soleen.com>
On Fri, Dec 11, 2020 at 03:21:39PM -0500, Pavel Tatashin wrote:
> @@ -1593,7 +1592,7 @@ static long check_and_migrate_cma_pages(struct mm_struct *mm,
> }
>
> if (!isolate_lru_page(head)) {
> - list_add_tail(&head->lru, &cma_page_list);
> + list_add_tail(&head->lru, &movable_page_list);
> mod_node_page_state(page_pgdat(head),
> NR_ISOLATED_ANON +
> page_is_file_lru(head),
> @@ -1605,7 +1604,7 @@ static long check_and_migrate_cma_pages(struct mm_struct *mm,
> i += step;
> }
>
> - if (!list_empty(&cma_page_list)) {
> + if (!list_empty(&movable_page_list)) {
You didn't answer my earlier question, is it OK that ZONE_MOVABLE
pages leak out here if ioslate_lru_page() fails but the
moval_page_list is empty?
I think the answer is no, right?
Jason
next prev parent reply other threads:[~2020-12-11 21:30 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-11 20:21 [PATCH v3 0/6] prohibit pinning pages in ZONE_MOVABLE Pavel Tatashin
2020-12-11 20:21 ` [PATCH v3 1/6] mm/gup: don't pin migrated cma pages in movable zone Pavel Tatashin
2020-12-11 20:21 ` [PATCH v3 2/6] mm cma: rename PF_MEMALLOC_NOCMA to PF_MEMALLOC_PIN Pavel Tatashin
2020-12-14 14:03 ` Michal Hocko
2020-12-15 4:37 ` Pavel Tatashin
2020-12-11 20:21 ` [PATCH v3 3/6] mm: apply per-task gfp constraints in fast path Pavel Tatashin
2020-12-14 14:09 ` Michal Hocko
2020-12-15 5:20 ` Pavel Tatashin
2020-12-15 8:25 ` Michal Hocko
2020-12-15 17:35 ` Pavel Tatashin
2020-12-11 20:21 ` [PATCH v3 4/6] mm: honor PF_MEMALLOC_PIN for all movable pages Pavel Tatashin
2020-12-14 14:17 ` Michal Hocko
2020-12-15 5:24 ` Pavel Tatashin
2020-12-15 8:27 ` Michal Hocko
2020-12-15 17:28 ` Pavel Tatashin
2020-12-11 20:21 ` [PATCH v3 5/6] mm/gup: migrate pinned pages out of movable zone Pavel Tatashin
2020-12-11 20:23 ` Jason Gunthorpe [this message]
2020-12-11 20:40 ` Pavel Tatashin
2020-12-11 20:46 ` Jason Gunthorpe
2020-12-11 21:09 ` Pavel Tatashin
2020-12-11 21:29 ` David Hildenbrand
2020-12-11 21:35 ` Pavel Tatashin
2020-12-11 21:53 ` David Hildenbrand
2020-12-11 23:00 ` Pavel Tatashin
2020-12-12 0:07 ` John Hubbard
2020-12-11 23:50 ` Jason Gunthorpe
2020-12-12 7:29 ` David Hildenbrand
2020-12-14 13:36 ` Jason Gunthorpe
2020-12-14 14:21 ` David Hildenbrand
2020-12-14 14:30 ` Michal Hocko
2020-12-14 14:19 ` Michal Hocko
2020-12-11 20:21 ` [PATCH v3 6/6] memory-hotplug.rst: add a note about ZONE_MOVABLE and page pinning Pavel Tatashin
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