All of lore.kernel.org
 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
Subject: [PATCH v2 2/8] mm/gup: don't pin migrated cma pages in movable zone
Date: Wed,  9 Dec 2020 19:43:29 -0500	[thread overview]
Message-ID: <20201210004335.64634-3-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20201210004335.64634-1-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 cdb8b9eeb016..3a76c005a3e2 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1610,7 +1610,7 @@ 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


  parent reply	other threads:[~2020-12-10  0:45 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-10  0:43 [PATCH v2 0/8] prohibit pinning pages in ZONE_MOVABLE Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 1/8] mm/gup: perform check_dax_vmas only when FS_DAX is enabled Pavel Tatashin
2020-12-10  6:36   ` Pankaj Gupta
2020-12-10  6:36     ` Pankaj Gupta
2020-12-10 13:30     ` Pavel Tatashin
2020-12-10 13:30       ` Pavel Tatashin
2020-12-10  0:43 ` Pavel Tatashin [this message]
2020-12-10  0:43 ` [PATCH v2 3/8] mm/gup: make __gup_longterm_locked common Pavel Tatashin
2020-12-10  4:06   ` Ira Weiny
2020-12-10 13:30     ` Pavel Tatashin
2020-12-10 13:30       ` Pavel Tatashin
2020-12-10 17:44       ` Ira Weiny
2020-12-10 18:57         ` Pavel Tatashin
2020-12-10 18:57           ` Pavel Tatashin
2020-12-10 19:53           ` Jason Gunthorpe
2020-12-10 19:54             ` Pavel Tatashin
2020-12-10 19:54               ` Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 4/8] mm cma: rename PF_MEMALLOC_NOCMA to PF_MEMALLOC_PIN Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 5/8] mm: apply per-task gfp constraints in fast path Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 6/8] mm: honor PF_MEMALLOC_PIN for all movable pages Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 7/8] mm/gup: migrate pinned pages out of movable zone Pavel Tatashin
2020-12-10  0:43 ` [PATCH v2 8/8] memory-hotplug.rst: add a note about ZONE_MOVABLE and page pinning Pavel Tatashin

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=20201210004335.64634-3-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=jgg@ziepe.ca \
    --cc=jhubbard@nvidia.com \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.