diff options
Diffstat (limited to 'mm-alloc_contig-re-allow-CMA-to-compact-FS-pages.patch')
| -rw-r--r-- | mm-alloc_contig-re-allow-CMA-to-compact-FS-pages.patch | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/mm-alloc_contig-re-allow-CMA-to-compact-FS-pages.patch b/mm-alloc_contig-re-allow-CMA-to-compact-FS-pages.patch deleted file mode 100644 index 0e542dc4f..000000000 --- a/mm-alloc_contig-re-allow-CMA-to-compact-FS-pages.patch +++ /dev/null @@ -1,42 +0,0 @@ -From 424f6c4818bbf1b8ccf58aa012ecc19c0bb9b446 Mon Sep 17 00:00:00 2001 -From: Lucas Stach <l.stach@pengutronix.de> -Date: Tue, 24 Jan 2017 15:18:05 -0800 -Subject: [PATCH 179/273] mm: alloc_contig: re-allow CMA to compact FS pages - -Commit 73e64c51afc5 ("mm, compaction: allow compaction for GFP_NOFS -requests") changed compation to skip FS pages if not explicitly allowed -to touch them, but missed to update the CMA compact_control. - -This leads to a very high isolation failure rate, crippling performance -of CMA even on a lightly loaded system. Re-allow CMA to compact FS -pages by setting the correct GFP flags, restoring CMA behavior and -performance to the kernel 4.9 level. - -Fixes: 73e64c51afc5 (mm, compaction: allow compaction for GFP_NOFS requests) -Link: http://lkml.kernel.org/r/20170113115155.24335-1-l.stach@pengutronix.de -Signed-off-by: Lucas Stach <l.stach@pengutronix.de> -Acked-by: Michal Hocko <mhocko@suse.com> -Acked-by: Vlastimil Babka <vbabka@suse.cz> -Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> -Cc: Mel Gorman <mgorman@techsingularity.net> -Signed-off-by: Andrew Morton <akpm@linux-foundation.org> -Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> ---- - mm/page_alloc.c | 1 + - 1 file changed, 1 insertion(+) - -diff --git a/mm/page_alloc.c b/mm/page_alloc.c -index d604d25..41d5e2e 100644 ---- a/mm/page_alloc.c -+++ b/mm/page_alloc.c -@@ -7248,6 +7248,7 @@ int alloc_contig_range(unsigned long start, unsigned long end, - .zone = page_zone(pfn_to_page(start)), - .mode = MIGRATE_SYNC, - .ignore_skip_hint = true, -+ .gfp_mask = GFP_KERNEL, - }; - INIT_LIST_HEAD(&cc.migratepages); - --- -2.9.3 - |