diff options
-rw-r--r-- | include/linux/gfp.h | 3 | ||||
-rw-r--r-- | include/linux/pagemap.h | 4 | ||||
-rw-r--r-- | mm/page_alloc.c | 2 |
3 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index af7407e8cfc5..208535fd4832 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h | |||
@@ -39,6 +39,7 @@ struct vm_area_struct; | |||
39 | #define __GFP_COMP 0x4000u /* Add compound page metadata */ | 39 | #define __GFP_COMP 0x4000u /* Add compound page metadata */ |
40 | #define __GFP_ZERO 0x8000u /* Return zeroed page on success */ | 40 | #define __GFP_ZERO 0x8000u /* Return zeroed page on success */ |
41 | #define __GFP_NOMEMALLOC 0x10000u /* Don't use emergency reserves */ | 41 | #define __GFP_NOMEMALLOC 0x10000u /* Don't use emergency reserves */ |
42 | #define __GFP_NORECLAIM 0x20000u /* No realy zone reclaim during allocation */ | ||
42 | 43 | ||
43 | #define __GFP_BITS_SHIFT 20 /* Room for 20 __GFP_FOO bits */ | 44 | #define __GFP_BITS_SHIFT 20 /* Room for 20 __GFP_FOO bits */ |
44 | #define __GFP_BITS_MASK ((1 << __GFP_BITS_SHIFT) - 1) | 45 | #define __GFP_BITS_MASK ((1 << __GFP_BITS_SHIFT) - 1) |
@@ -47,7 +48,7 @@ struct vm_area_struct; | |||
47 | #define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \ | 48 | #define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \ |
48 | __GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \ | 49 | __GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \ |
49 | __GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \ | 50 | __GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \ |
50 | __GFP_NOMEMALLOC) | 51 | __GFP_NOMEMALLOC|__GFP_NORECLAIM) |
51 | 52 | ||
52 | #define GFP_ATOMIC (__GFP_HIGH) | 53 | #define GFP_ATOMIC (__GFP_HIGH) |
53 | #define GFP_NOIO (__GFP_WAIT) | 54 | #define GFP_NOIO (__GFP_WAIT) |
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 0422031161ba..d9a25647a295 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h | |||
@@ -52,12 +52,12 @@ void release_pages(struct page **pages, int nr, int cold); | |||
52 | 52 | ||
53 | static inline struct page *page_cache_alloc(struct address_space *x) | 53 | static inline struct page *page_cache_alloc(struct address_space *x) |
54 | { | 54 | { |
55 | return alloc_pages(mapping_gfp_mask(x), 0); | 55 | return alloc_pages(mapping_gfp_mask(x)|__GFP_NORECLAIM, 0); |
56 | } | 56 | } |
57 | 57 | ||
58 | static inline struct page *page_cache_alloc_cold(struct address_space *x) | 58 | static inline struct page *page_cache_alloc_cold(struct address_space *x) |
59 | { | 59 | { |
60 | return alloc_pages(mapping_gfp_mask(x)|__GFP_COLD, 0); | 60 | return alloc_pages(mapping_gfp_mask(x)|__GFP_COLD|__GFP_NORECLAIM, 0); |
61 | } | 61 | } |
62 | 62 | ||
63 | typedef int filler_t(void *, struct page *); | 63 | typedef int filler_t(void *, struct page *); |
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 3c0f69ded6b5..a9da20bc2ed0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c | |||
@@ -729,6 +729,8 @@ should_reclaim_zone(struct zone *z, unsigned int gfp_mask) | |||
729 | { | 729 | { |
730 | if (!z->reclaim_pages) | 730 | if (!z->reclaim_pages) |
731 | return 0; | 731 | return 0; |
732 | if (gfp_mask & __GFP_NORECLAIM) | ||
733 | return 0; | ||
732 | return 1; | 734 | return 1; |
733 | } | 735 | } |
734 | 736 | ||