diff options
| author | Laura Abbott <[email protected]> | 2014-10-09 15:26:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2014-10-09 22:25:52 -0400 |
| commit | 9efb3a421d55d30b65fb0dbee05108d15c6c55f7 (patch) | |
| tree | 33cbfa3460617e1ae29ab0e239f9f427f83b4a11 /include/linux | |
| parent | 505e3be6c082489a32a88e042f930d047b6415bc (diff) | |
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 <[email protected]>
Acked-by: Will Deacon <[email protected]>
Reviewed-by: Olof Johansson <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: David Riley <[email protected]>
Cc: Ritesh Harjain <[email protected]>
Cc: Russell King <[email protected]>
Cc: Thierry Reding <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
| -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); |