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author | Alexander Graf <agraf@suse.de> | 2012-10-31 13:36:18 +0100 |
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committer | Alexander Graf <agraf@suse.de> | 2012-10-31 13:36:18 +0100 |
commit | 0588000eac9ba4178cebade437da3b28e8fad48f (patch) | |
tree | 697e514a0a0193f17a54f372dd18c5cd3927e154 /include/linux/genalloc.h | |
parent | KVM: PPC: Book3S HV: Fix thinko in try_lock_hpte() (diff) | |
parent | KVM: do not treat noslot pfn as a error pfn (diff) | |
download | linux-dev-0588000eac9ba4178cebade437da3b28e8fad48f.tar.xz linux-dev-0588000eac9ba4178cebade437da3b28e8fad48f.zip |
Merge commit 'origin/queue' into for-queue
Conflicts:
arch/powerpc/include/asm/Kbuild
arch/powerpc/include/uapi/asm/Kbuild
Diffstat (limited to 'include/linux/genalloc.h')
-rw-r--r-- | include/linux/genalloc.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h index 5e98eeb2af3b..dd7c569aacad 100644 --- a/include/linux/genalloc.h +++ b/include/linux/genalloc.h @@ -29,6 +29,20 @@ #ifndef __GENALLOC_H__ #define __GENALLOC_H__ +/** + * Allocation callback function type definition + * @map: Pointer to bitmap + * @size: The bitmap size in bits + * @start: The bitnumber to start searching at + * @nr: The number of zeroed bits we're looking for + * @data: optional additional data used by @genpool_algo_t + */ +typedef unsigned long (*genpool_algo_t)(unsigned long *map, + unsigned long size, + unsigned long start, + unsigned int nr, + void *data); + /* * General purpose special memory pool descriptor. */ @@ -36,6 +50,9 @@ struct gen_pool { spinlock_t lock; struct list_head chunks; /* list of chunks in this pool */ int min_alloc_order; /* minimum allocation order */ + + genpool_algo_t algo; /* allocation function */ + void *data; }; /* @@ -78,4 +95,14 @@ extern void gen_pool_for_each_chunk(struct gen_pool *, void (*)(struct gen_pool *, struct gen_pool_chunk *, void *), void *); extern size_t gen_pool_avail(struct gen_pool *); extern size_t gen_pool_size(struct gen_pool *); + +extern void gen_pool_set_algo(struct gen_pool *pool, genpool_algo_t algo, + void *data); + +extern unsigned long gen_pool_first_fit(unsigned long *map, unsigned long size, + unsigned long start, unsigned int nr, void *data); + +extern unsigned long gen_pool_best_fit(unsigned long *map, unsigned long size, + unsigned long start, unsigned int nr, void *data); + #endif /* __GENALLOC_H__ */ |