diff options
| author | Laura Abbott <lauraa@codeaurora.org> | 2014-10-10 02:26:38 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-10 06:25:52 +0400 |
| commit | 9efb3a421d55d30b65fb0dbee05108d15c6c55f7 (patch) | |
| tree | 33cbfa3460617e1ae29ab0e239f9f427f83b4a11 /include | |
| parent | 505e3be6c082489a32a88e042f930d047b6415bc (diff) | |
| download | linux-9efb3a421d55d30b65fb0dbee05108d15c6c55f7.tar.xz | |
lib/genalloc.c: add genpool range check function
After allocating an address from a particular genpool, there is no good
way to verify if that address actually belongs to a genpool. Introduce
addr_in_gen_pool which will return if an address plus size falls
completely within the genpool range.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Riley <davidriley@chromium.org>
Cc: Ritesh Harjain <ritesh.harjani@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/genalloc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h index 3cd0934d62ba..1ccaab44abcc 100644 --- a/include/linux/genalloc.h +++ b/include/linux/genalloc.h @@ -121,6 +121,9 @@ extern struct gen_pool *devm_gen_pool_create(struct device *dev, int min_alloc_order, int nid); extern struct gen_pool *dev_get_gen_pool(struct device *dev); +bool addr_in_gen_pool(struct gen_pool *pool, unsigned long start, + size_t size); + #ifdef CONFIG_OF extern struct gen_pool *of_get_named_gen_pool(struct device_node *np, const char *propname, int index); |