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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-06-24 08:41:41 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-06-24 13:07:53 -0400 |
| commit | 816724e65c72a90a44fbad0ef0b59b186c85fa90 (patch) | |
| tree | 421fa29aedff988e392f92780637553e275d37a0 /include/linux/slab.h | |
| parent | 70ac4385a13f78bc478f26d317511893741b05bd (diff) | |
| parent | d384ea691fe4ea8c2dd5b9b8d9042eb181776f18 (diff) | |
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/
Conflicts:
fs/nfs/inode.c
fs/super.c
Fix conflicts between patch 'NFS: Split fs/nfs/inode.c' and patch
'VFS: Permit filesystem to override root dentry on mount'
Diffstat (limited to 'include/linux/slab.h')
| -rw-r--r-- | include/linux/slab.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h index 9dc93163e065..45ad55b70d1c 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h | |||
| @@ -86,6 +86,51 @@ extern void *__kmalloc_track_caller(size_t, gfp_t, void*); | |||
| 86 | __kmalloc_track_caller(size, flags, __builtin_return_address(0)) | 86 | __kmalloc_track_caller(size, flags, __builtin_return_address(0)) |
| 87 | #endif | 87 | #endif |
| 88 | 88 | ||
| 89 | /** | ||
| 90 | * kmalloc - allocate memory | ||
| 91 | * @size: how many bytes of memory are required. | ||
| 92 | * @flags: the type of memory to allocate. | ||
| 93 | * | ||
| 94 | * kmalloc is the normal method of allocating memory | ||
| 95 | * in the kernel. | ||
| 96 | * | ||
| 97 | * The @flags argument may be one of: | ||
| 98 | * | ||
| 99 | * %GFP_USER - Allocate memory on behalf of user. May sleep. | ||
| 100 | * | ||
| 101 | * %GFP_KERNEL - Allocate normal kernel ram. May sleep. | ||
| 102 | * | ||
| 103 | * %GFP_ATOMIC - Allocation will not sleep. | ||
| 104 | * For example, use this inside interrupt handlers. | ||
| 105 | * | ||
| 106 | * %GFP_HIGHUSER - Allocate pages from high memory. | ||
| 107 | * | ||
| 108 | * %GFP_NOIO - Do not do any I/O at all while trying to get memory. | ||
| 109 | * | ||
| 110 | * %GFP_NOFS - Do not make any fs calls while trying to get memory. | ||
| 111 | * | ||
| 112 | * Also it is possible to set different flags by OR'ing | ||
| 113 | * in one or more of the following additional @flags: | ||
| 114 | * | ||
| 115 | * %__GFP_COLD - Request cache-cold pages instead of | ||
| 116 | * trying to return cache-warm pages. | ||
| 117 | * | ||
| 118 | * %__GFP_DMA - Request memory from the DMA-capable zone. | ||
| 119 | * | ||
| 120 | * %__GFP_HIGH - This allocation has high priority and may use emergency pools. | ||
| 121 | * | ||
| 122 | * %__GFP_HIGHMEM - Allocated memory may be from highmem. | ||
| 123 | * | ||
| 124 | * %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail | ||
| 125 | * (think twice before using). | ||
| 126 | * | ||
| 127 | * %__GFP_NORETRY - If memory is not immediately available, | ||
| 128 | * then give up at once. | ||
| 129 | * | ||
| 130 | * %__GFP_NOWARN - If allocation fails, don't issue any warnings. | ||
| 131 | * | ||
| 132 | * %__GFP_REPEAT - If allocation fails initially, try once more before failing. | ||
| 133 | */ | ||
| 89 | static inline void *kmalloc(size_t size, gfp_t flags) | 134 | static inline void *kmalloc(size_t size, gfp_t flags) |
| 90 | { | 135 | { |
| 91 | if (__builtin_constant_p(size)) { | 136 | if (__builtin_constant_p(size)) { |
| @@ -111,6 +156,11 @@ found: | |||
| 111 | 156 | ||
| 112 | extern void *__kzalloc(size_t, gfp_t); | 157 | extern void *__kzalloc(size_t, gfp_t); |
| 113 | 158 | ||
| 159 | /** | ||
| 160 | * kzalloc - allocate memory. The memory is set to zero. | ||
| 161 | * @size: how many bytes of memory are required. | ||
| 162 | * @flags: the type of memory to allocate (see kmalloc). | ||
| 163 | */ | ||
| 114 | static inline void *kzalloc(size_t size, gfp_t flags) | 164 | static inline void *kzalloc(size_t size, gfp_t flags) |
| 115 | { | 165 | { |
| 116 | if (__builtin_constant_p(size)) { | 166 | if (__builtin_constant_p(size)) { |
