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| author | Michal Nazarewicz <mina86@mina86.com> | 2012-04-03 15:06:15 +0200 |
|---|---|---|
| committer | Ziyan <jaraidaniel@gmail.com> | 2016-04-03 14:56:03 +0200 |
| commit | 22b8f6206ba6da14a2e6ccbf45a3836e37a2be27 (patch) | |
| tree | fc8dfa1ceaf48affcf306939f028b78827487667 /include | |
| parent | 75a5a06cb8ebe6d32ba1556348cdaa70d28f1b62 (diff) | |
| download | kernel_samsung_tuna-22b8f6206ba6da14a2e6ccbf45a3836e37a2be27.zip kernel_samsung_tuna-22b8f6206ba6da14a2e6ccbf45a3836e37a2be27.tar.gz kernel_samsung_tuna-22b8f6206ba6da14a2e6ccbf45a3836e37a2be27.tar.bz2 | |
mm: page_isolation: MIGRATE_CMA isolation functions added
This commit changes various functions that change pages and
pageblocks migrate type between MIGRATE_ISOLATE and
MIGRATE_MOVABLE in such a way as to allow to work with
MIGRATE_CMA migrate type.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Tested-by: Rob Clark <rob.clark@linaro.org>
Tested-by: Ohad Ben-Cohen <ohad@wizery.com>
Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Tested-by: Robert Nelson <robertcnelson@gmail.com>
Tested-by: Barry Song <Baohua.Song@csr.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/gfp.h | 3 | ||||
| -rw-r--r-- | include/linux/page-isolation.h | 18 |
2 files changed, 11 insertions, 10 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index ecde812..24433c8 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -375,7 +375,8 @@ extern void pm_restore_gfp_mask(void); #ifdef CONFIG_CMA /* The below functions must be run on a range from a single zone. */ -extern int alloc_contig_range(unsigned long start, unsigned long end); +extern int alloc_contig_range(unsigned long start, unsigned long end, + unsigned migratetype); extern void free_contig_range(unsigned long pfn, unsigned nr_pages); #endif diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h index 051c1b1..3bdcab3 100644 --- a/include/linux/page-isolation.h +++ b/include/linux/page-isolation.h @@ -3,7 +3,7 @@ /* * Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE. - * If specified range includes migrate types other than MOVABLE, + * If specified range includes migrate types other than MOVABLE or CMA, * this will fail with -EBUSY. * * For isolating all pages in the range finally, the caller have to @@ -11,27 +11,27 @@ * test it. */ extern int -start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn); +start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, + unsigned migratetype); /* * Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE. * target range is [start_pfn, end_pfn) */ extern int -undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn); +undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, + unsigned migratetype); /* - * test all pages in [start_pfn, end_pfn)are isolated or not. + * Test all pages in [start_pfn, end_pfn) are isolated or not. */ -extern int -test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn); +int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn); /* - * Internal funcs.Changes pageblock's migrate type. - * Please use make_pagetype_isolated()/make_pagetype_movable(). + * Internal functions. Changes pageblock's migrate type. */ extern int set_migratetype_isolate(struct page *page); -extern void unset_migratetype_isolate(struct page *page); +extern void unset_migratetype_isolate(struct page *page, unsigned migratetype); #endif |