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authorRussell King <rmk+kernel@arm.linux.org.uk>2012-10-11 10:55:04 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-10-11 10:55:04 +0100
commita0f0dd57f4a85310d9936f1770a0424b49fef876 (patch)
tree2f85b8b67dda13d19b02ca39e0fbef921cb1cf8b /mm/util.c
parent2a552d5e63d7fa602c9a9a0717008737f55625a6 (diff)
parent846a136881b8f73c1f74250bf6acfaa309cab1f2 (diff)
Merge branch 'fixes' into for-linus
Conflicts: arch/arm/kernel/smp.c
Diffstat (limited to 'mm/util.c')
-rw-r--r--mm/util.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/mm/util.c b/mm/util.c
index 8c7265afa29..dc3036cdcc6 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);