diff options
author | Jiri Kosina <jkosina@suse.cz> | 2012-10-28 19:28:52 +0100 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2012-10-28 19:29:19 +0100 |
commit | 3bd7bf1f0fe14f591c089ae61bbfa9bd356f178a (patch) | |
tree | 0058693cc9e70b7461dae551f8a19aff2efd13ca /mm/util.c | |
parent | f16f84937d769c893492160b1a8c3672e3992beb (diff) | |
parent | e657e078d3dfa9f96976db7a2b5fd7d7c9f1f1a6 (diff) | |
download | lwn-3bd7bf1f0fe14f591c089ae61bbfa9bd356f178a.tar.gz lwn-3bd7bf1f0fe14f591c089ae61bbfa9bd356f178a.zip |
Merge branch 'master' into for-next
Sync up with Linus' tree to be able to apply Cesar's patch
against newer version of the code.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'mm/util.c')
-rw-r--r-- | mm/util.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/mm/util.c b/mm/util.c index 3a5278c08d76..c55e26b17d93 100644 --- a/mm/util.c +++ b/mm/util.c @@ -105,6 +105,25 @@ void *memdup_user(const void __user *src, size_t len) } EXPORT_SYMBOL(memdup_user); +static __always_inline void *__do_krealloc(const void *p, size_t new_size, + gfp_t flags) +{ + void *ret; + size_t ks = 0; + + if (p) + ks = ksize(p); + + if (ks >= new_size) + return (void *)p; + + ret = kmalloc_track_caller(new_size, flags); + if (ret && p) + memcpy(ret, p, ks); + + return ret; +} + /** * __krealloc - like krealloc() but don't free @p. * @p: object to reallocate memory for. @@ -117,23 +136,11 @@ EXPORT_SYMBOL(memdup_user); */ void *__krealloc(const void *p, size_t new_size, gfp_t flags) { - void *ret; - size_t ks = 0; - if (unlikely(!new_size)) return ZERO_SIZE_PTR; - if (p) - ks = ksize(p); + return __do_krealloc(p, new_size, flags); - if (ks >= new_size) - return (void *)p; - - ret = kmalloc_track_caller(new_size, flags); - if (ret && p) - memcpy(ret, p, ks); - - return ret; } EXPORT_SYMBOL(__krealloc); @@ -157,7 +164,7 @@ void *krealloc(const void *p, size_t new_size, gfp_t flags) return ZERO_SIZE_PTR; } - ret = __krealloc(p, new_size, flags); + ret = __do_krealloc(p, new_size, flags); if (ret && p != ret) kfree(p); |