diff options
| author | Christoph Hellwig <hch@infradead.org> | 2010-01-20 21:55:30 +0000 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2010-01-21 13:44:56 -0600 |
| commit | bdfb04301fa5fdd95f219539a9a5b9663b1e5fc2 (patch) | |
| tree | 6d50b1c71d1f227cf1800ee0531a475266ef6da8 /fs/xfs/linux-2.6/kmem.h | |
| parent | a14a348bff2f99471a28e5928eb6801224c053d8 (diff) | |
| download | op-kernel-dev-bdfb04301fa5fdd95f219539a9a5b9663b1e5fc2.zip op-kernel-dev-bdfb04301fa5fdd95f219539a9a5b9663b1e5fc2.tar.gz | |
xfs: replace KM_LARGE with explicit vmalloc use
We use the KM_LARGE flag to make kmem_alloc and friends use vmalloc
if necessary. As we only need this for a few boot/mount time
allocations just switch to explicit vmalloc calls there.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/kmem.h')
| -rw-r--r-- | fs/xfs/linux-2.6/kmem.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h index 179cbd6..f7c8f7a 100644 --- a/fs/xfs/linux-2.6/kmem.h +++ b/fs/xfs/linux-2.6/kmem.h @@ -21,6 +21,7 @@ #include <linux/slab.h> #include <linux/sched.h> #include <linux/mm.h> +#include <linux/vmalloc.h> /* * General memory allocation interfaces @@ -30,7 +31,6 @@ #define KM_NOSLEEP 0x0002u #define KM_NOFS 0x0004u #define KM_MAYFAIL 0x0008u -#define KM_LARGE 0x0010u /* * We use a special process flag to avoid recursive callbacks into @@ -42,7 +42,7 @@ kmem_flags_convert(unsigned int __nocast flags) { gfp_t lflags; - BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL|KM_LARGE)); + BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL)); if (flags & KM_NOSLEEP) { lflags = GFP_ATOMIC | __GFP_NOWARN; @@ -56,10 +56,25 @@ kmem_flags_convert(unsigned int __nocast flags) extern void *kmem_alloc(size_t, unsigned int __nocast); extern void *kmem_zalloc(size_t, unsigned int __nocast); -extern void *kmem_zalloc_greedy(size_t *, size_t, size_t, unsigned int __nocast); extern void *kmem_realloc(const void *, size_t, size_t, unsigned int __nocast); extern void kmem_free(const void *); +static inline void *kmem_zalloc_large(size_t size) +{ + void *ptr; + + ptr = vmalloc(size); + if (ptr) + memset(ptr, 0, size); + return ptr; +} +static inline void kmem_free_large(void *ptr) +{ + vfree(ptr); +} + +extern void *kmem_zalloc_greedy(size_t *, size_t, size_t); + /* * Zone interfaces */ |
