linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Pavel Tatashin <pasha.tatashin@soleen.com>
To: pasha.tatashin@soleen.com, 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,
	jgg@ziepe.ca, peterz@infradead.org, mgorman@suse.de,
	willy@infradead.org, rientjes@google.com, jhubbard@nvidia.com,
	linux-doc@vger.kernel.org, ira.weiny@intel.com,
	linux-kselftest@vger.kernel.org
Subject: [PATCH v4 01/10] mm/gup: don't pin migrated cma pages in movable zone
Date: Thu, 17 Dec 2020 13:52:34 -0500	[thread overview]
Message-ID: <20201217185243.3288048-2-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20201217185243.3288048-1-pasha.tatashin@soleen.com>

In order not to fragment CMA the pinned pages are migrated. However,
they are migrated to ZONE_MOVABLE, which also should not have pinned pages.

Remove __GFP_MOVABLE, so pages can be migrated to zones where pinning
is allowed.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Michal Hocko <mhocko@suse.com>
---
 mm/gup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/gup.c b/mm/gup.c
index 4f3cf14ac958..f2e50cdd7d67 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1565,7 +1565,7 @@ static long check_and_migrate_cma_pages(struct mm_struct *mm,
 	long ret = nr_pages;
 	struct migration_target_control mtc = {
 		.nid = NUMA_NO_NODE,
-		.gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_NOWARN,
+		.gfp_mask = GFP_USER | __GFP_NOWARN,
 	};
 
 check_again:
-- 
2.25.1



  reply	other threads:[~2020-12-17 18:52 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-17 18:52 [PATCH v4 00/10] prohibit pinning pages in ZONE_MOVABLE Pavel Tatashin
2020-12-17 18:52 ` Pavel Tatashin [this message]
2020-12-17 18:52 ` [PATCH v4 02/10] mm cma: rename PF_MEMALLOC_NOCMA to PF_MEMALLOC_PIN Pavel Tatashin
2020-12-17 18:52 ` [PATCH v4 03/10] mm: apply per-task gfp constraints in fast path Pavel Tatashin
2020-12-18  9:36   ` Michal Hocko
2020-12-18 12:23     ` Pavel Tatashin
2020-12-17 18:52 ` [PATCH v4 04/10] mm: honor PF_MEMALLOC_PIN for all movable pages Pavel Tatashin
2020-12-17 18:52 ` [PATCH v4 05/10] mm/gup: migrate pinned pages out of movable zone Pavel Tatashin
2020-12-18  9:43   ` Michal Hocko
2020-12-18 12:24     ` Pavel Tatashin
2020-12-18 13:08       ` Michal Hocko
2021-01-13 19:14         ` Pavel Tatashin
2020-12-17 18:52 ` [PATCH v4 06/10] memory-hotplug.rst: add a note about ZONE_MOVABLE and page pinning Pavel Tatashin
2020-12-18  9:44   ` Michal Hocko
2020-12-17 18:52 ` [PATCH v4 07/10] mm/gup: change index type to long as it counts pages Pavel Tatashin
2020-12-18  9:50   ` Michal Hocko
2020-12-18 12:32     ` Pavel Tatashin
2020-12-17 18:52 ` [PATCH v4 08/10] mm/gup: limit number of gup migration failures, honor failures Pavel Tatashin
2020-12-17 20:50   ` Jason Gunthorpe
2020-12-17 22:02     ` Pavel Tatashin
2020-12-18 14:19       ` Jason Gunthorpe
2021-01-13 19:43         ` Pavel Tatashin
2021-01-13 19:55           ` Jason Gunthorpe
2021-01-13 20:05             ` Pavel Tatashin
2021-01-13 23:40               ` Jason Gunthorpe
2021-01-15 18:10               ` Pavel Tatashin
2021-01-15 18:40                 ` Jason Gunthorpe
2020-12-18 10:46   ` Michal Hocko
2020-12-18 12:43     ` Pavel Tatashin
2020-12-18 13:04       ` David Hildenbrand
2020-12-18 13:14       ` Michal Hocko
2021-01-13 19:49         ` Pavel Tatashin
2020-12-17 18:52 ` [PATCH v4 09/10] selftests/vm: test flag is broken Pavel Tatashin
2020-12-18  9:06   ` John Hubbard
2020-12-18  9:11     ` John Hubbard
2020-12-17 18:52 ` [PATCH v4 10/10] selftests/vm: test faulting in kernel, and verify pinnable pages Pavel Tatashin
2020-12-19  5:57   ` John Hubbard
2020-12-19 15:22     ` Pavel Tatashin
2020-12-19 23:51       ` John Hubbard

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20201217185243.3288048-2-pasha.tatashin@soleen.com \
    --to=pasha.tatashin@soleen.com \
    --cc=akpm@linux-foundation.org \
    --cc=dan.j.williams@intel.com \
    --cc=david@redhat.com \
    --cc=iamjoonsoo.kim@lge.com \
    --cc=ira.weiny@intel.com \
    --cc=jgg@ziepe.ca \
    --cc=jhubbard@nvidia.com \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mgorman@suse.de \
    --cc=mhocko@suse.com \
    --cc=mike.kravetz@oracle.com \
    --cc=mingo@redhat.com \
    --cc=osalvador@suse.de \
    --cc=peterz@infradead.org \
    --cc=rientjes@google.com \
    --cc=rostedt@goodmis.org \
    --cc=sashal@kernel.org \
    --cc=tyhicks@linux.microsoft.com \
    --cc=vbabka@suse.cz \
    --cc=willy@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox