The patch titled
Subject: mm: rename allocflags_to_migratetype for clarity
has been added to the -mm tree. Its filename is
mm-rename-allocflags_to_migratetype-for-clarity.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-rename-allocflags_to_migratetype-for-clarity.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-rename-allocflags_to_migratetype-for-clarity.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm: rename allocflags_to_migratetype for clarity
The page allocator has gfp flags (like __GFP_WAIT) and alloc flags (like
ALLOC_CPUSET) that have separate semantics.
The function allocflags_to_migratetype() actually takes gfp flags, not
alloc flags, and returns a migratetype. Rename it to
gfpflags_to_migratetype().
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
Reviewed-by: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>
Acked-by: Mel Gorman <mgorman@xxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Michal Nazarewicz <mina86@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/gfp.h | 2 +-
mm/compaction.c | 4 ++--
mm/page_alloc.c | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)
diff -puN include/linux/gfp.h~mm-rename-allocflags_to_migratetype-for-clarity include/linux/gfp.h
--- a/include/linux/gfp.h~mm-rename-allocflags_to_migratetype-for-clarity
+++ a/include/linux/gfp.h
@@ -156,7 +156,7 @@ struct vm_area_struct;
#define GFP_DMA32 __GFP_DMA32
/* Convert GFP flags to their corresponding migrate type */
-static inline int allocflags_to_migratetype(gfp_t gfp_flags)
+static inline int gfpflags_to_migratetype(const gfp_t gfp_flags)
{
WARN_ON((gfp_flags & GFP_MOVABLE_MASK) == GFP_MOVABLE_MASK);
diff -puN mm/compaction.c~mm-rename-allocflags_to_migratetype-for-clarity mm/compaction.c
--- a/mm/compaction.c~mm-rename-allocflags_to_migratetype-for-clarity
+++ a/mm/compaction.c
@@ -1245,7 +1245,7 @@ static unsigned long compact_zone_order(
.nr_freepages = 0,
.nr_migratepages = 0,
.order = order,
- .migratetype = allocflags_to_migratetype(gfp_mask),
+ .migratetype = gfpflags_to_migratetype(gfp_mask),
.zone = zone,
.mode = mode,
};
@@ -1297,7 +1297,7 @@ unsigned long try_to_compact_pages(struc
return COMPACT_SKIPPED;
#ifdef CONFIG_CMA
- if (allocflags_to_migratetype(gfp_mask) == MIGRATE_MOVABLE)
+ if (gfpflags_to_migratetype(gfp_mask) == MIGRATE_MOVABLE)
alloc_flags |= ALLOC_CMA;
#endif
/* Compact each zone in the list */
diff -puN mm/page_alloc.c~mm-rename-allocflags_to_migratetype-for-clarity mm/page_alloc.c
--- a/mm/page_alloc.c~mm-rename-allocflags_to_migratetype-for-clarity
+++ a/mm/page_alloc.c
@@ -2523,7 +2523,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask)
alloc_flags |= ALLOC_NO_WATERMARKS;
}
#ifdef CONFIG_CMA
- if (allocflags_to_migratetype(gfp_mask) == MIGRATE_MOVABLE)
+ if (gfpflags_to_migratetype(gfp_mask) == MIGRATE_MOVABLE)
alloc_flags |= ALLOC_CMA;
#endif
return alloc_flags;
@@ -2786,7 +2786,7 @@ __alloc_pages_nodemask(gfp_t gfp_mask, u
struct zone *preferred_zone;
struct zoneref *preferred_zoneref;
struct page *page = NULL;
- int migratetype = allocflags_to_migratetype(gfp_mask);
+ int migratetype = gfpflags_to_migratetype(gfp_mask);
unsigned int cpuset_mems_cookie;
int alloc_flags = ALLOC_WMARK_LOW|ALLOC_CPUSET|ALLOC_FAIR;
int classzone_idx;
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
x86-numa-setup_node_data-drop-dead-code-and-rename-function.patch
memory-hotplug-add-sysfs-zones_online_to-attribute.patch
mm-page_alloc-determine-migratetype-only-once.patch
mm-thp-dont-hold-mmap_sem-in-khugepaged-when-allocating-thp.patch
mm-compaction-defer-each-zone-individually-instead-of-preferred-zone.patch
mm-compaction-do-not-count-compact_stall-if-all-zones-skipped-compaction.patch
mm-compaction-do-not-recheck-suitable_migration_target-under-lock.patch
mm-compaction-move-pageblock-checks-up-from-isolate_migratepages_range.patch
mm-compaction-reduce-zone-checking-frequency-in-the-migration-scanner.patch
mm-compaction-khugepaged-should-not-give-up-due-to-need_resched.patch
mm-compaction-periodically-drop-lock-and-restore-irqs-in-scanners.patch
mm-compaction-skip-rechecks-when-lock-was-already-held.patch
mm-compaction-remember-position-within-pageblock-in-free-pages-scanner.patch
mm-compaction-skip-buddy-pages-by-their-order-in-the-migrate-scanner.patch
mm-rename-allocflags_to_migratetype-for-clarity.patch
mm-compaction-pass-gfp-mask-to-compact_control.patch
include-kernelh-rewrite-min3-max3-and-clamp-using-min-and-max.patch
mm-utilc-add-kstrimdup.patch
linux-next.patch
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