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authorMel Gorman <mgorman@techsingularity.net>2023-01-13 11:12:14 +0000
committerAndrew Morton <akpm@linux-foundation.org>2023-02-02 22:33:12 -0800
commiteb2e2b425c6984ca8034448a3f2c680622bd3d4d (patch)
treedce2ee2aff64a17bd8d086c6dc2040a8014dff95 /mm/internal.h
parentc988dcbecf3fd5430921eaa3fe9054754f76d185 (diff)
mm/page_alloc: explicitly record high-order atomic allocations in alloc_flags
A high-order ALLOC_HARDER allocation is assumed to be atomic. While that is accurate, it changes later in the series. In preparation, explicitly record high-order atomic allocations in gfp_to_alloc_flags(). Link: https://lkml.kernel.org/r/20230113111217.14134-4-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: NeilBrown <neilb@suse.de> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
-rw-r--r--mm/internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 99eb544fbded..62428467d7cf 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -789,6 +789,7 @@ unsigned int reclaim_clean_pages_from_list(struct zone *zone,
#else
#define ALLOC_NOFRAGMENT 0x0
#endif
+#define ALLOC_HIGHATOMIC 0x200 /* Allows access to MIGRATE_HIGHATOMIC */
#define ALLOC_KSWAPD 0x800 /* allow waking of kswapd, __GFP_KSWAPD_RECLAIM set */
enum ttu_flags;