From: Rik van Riel <riel@surriel.com>
To: linux-kernel@vger.kernel.org
Cc: kernel-team@fb.com, akpm@linux-foundation.org,
linux-mm@kvack.org, mhocko@kernel.org, vbabka@suse.cz,
mgorman@techsingularity.net, rientjes@google.com,
aarcange@redhat.com, ziy@nvidia.com,
Rik van Riel <riel@surriel.com>
Subject: [PATCH 1/2] mm,compaction,cma: add alloc_contig flag to compact_control
Date: Thu, 27 Feb 2020 16:32:28 -0500 [thread overview]
Message-ID: <20200227213238.1298752-1-riel@surriel.com> (raw)
In-Reply-To: <cover.1582321646.git.riel@surriel.com>
Add information to struct compact_control to indicate that the allocator
would really like to clear out this specific part of memory, used by for
example CMA.
Signed-off-by: Rik van Riel <riel@surriel.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
---
mm/internal.h | 1 +
mm/page_alloc.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/mm/internal.h b/mm/internal.h
index 3cf20ab3ca01..78492d9815b4 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -206,6 +206,7 @@ struct compact_control {
bool whole_zone; /* Whole zone should/has been scanned */
bool contended; /* Signal lock or sched contention */
bool rescan; /* Rescanning the same pageblock */
+ bool alloc_contig; /* alloc_contig_range allocation */
};
/*
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3c4eb750a199..a36736812596 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8402,6 +8402,7 @@ int alloc_contig_range(unsigned long start, unsigned long end,
.ignore_skip_hint = true,
.no_set_skip_hint = true,
.gfp_mask = current_gfp_context(gfp_mask),
+ .alloc_contig = true,
};
INIT_LIST_HEAD(&cc.migratepages);
--
2.24.1
next prev parent reply other threads:[~2020-02-27 21:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-27 21:32 [PATCH v2 0/2] fix THP migration for CMA allocations Rik van Riel
2020-02-27 21:32 ` Rik van Riel [this message]
2020-02-27 21:32 ` [PATCH v2 2/2] mm,thp,compaction,cma: allow " Rik van Riel
2020-02-27 23:41 ` Mike Kravetz
2020-02-28 1:21 ` Rik van Riel
2020-02-28 4:30 ` Mike Kravetz
2020-02-28 8:25 ` Vlastimil Babka
2020-02-28 14:32 ` Rik van Riel
2020-02-28 14:39 ` Vlastimil Babka
2020-02-28 15:47 ` [PATCH] fix mmthpcompactioncma-allow-thp-migration-for-cma-allocations.patch Rik van Riel
2020-03-02 9:32 ` [PATCH v2 2/2] mm,thp,compaction,cma: allow THP migration for CMA allocations Vlastimil Babka
-- strict thread matches above, loose matches on Subject: below --
2020-02-21 21:53 [PATCH 0/2] fix " Rik van Riel
2020-02-21 21:53 ` [PATCH 1/2] mm,compaction,cma: add alloc_contig flag to compact_control Rik van Riel
2020-02-24 15:04 ` Vlastimil Babka
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