summaryrefslogtreecommitdiffstats
path: root/mm/util.c
diff options
context:
space:
mode:
authorAndrey Ryabinin <a.ryabinin@samsung.com>2014-08-06 16:04:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 18:01:15 -0700
commit928cec9cd6db53a68f54bc9ef1c54c674ba1c6bb (patch)
tree109222d5f88dda34aafe9e2946b426da5331c368 /mm/util.c
parent54266640709a24c9844245d0d9f36b9cb1f31326 (diff)
downloadlinux-stable-928cec9cd6db53a68f54bc9ef1c54c674ba1c6bb.tar.gz
linux-stable-928cec9cd6db53a68f54bc9ef1c54c674ba1c6bb.tar.bz2
linux-stable-928cec9cd6db53a68f54bc9ef1c54c674ba1c6bb.zip
mm: move slab related stuff from util.c to slab_common.c
Functions krealloc(), __krealloc(), kzfree() belongs to slab API, so should be placed in slab_common.c Also move slab allocator's tracepoints defenitions to slab_common.c No functional changes here. Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com> Acked-by: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/util.c')
-rw-r--r--mm/util.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/mm/util.c b/mm/util.c
index d5ea733c5082..7b6608df2ee8 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -16,9 +16,6 @@
#include "internal.h"
-#define CREATE_TRACE_POINTS
-#include <trace/events/kmem.h>
-
/**
* kstrdup - allocate space for and copy an existing string
* @s: the string to duplicate
@@ -112,97 +109,6 @@ 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.
- * @new_size: how many bytes of memory are required.
- * @flags: the type of memory to allocate.
- *
- * This function is like krealloc() except it never frees the originally
- * allocated buffer. Use this if you don't want to free the buffer immediately
- * like, for example, with RCU.
- */
-void *__krealloc(const void *p, size_t new_size, gfp_t flags)
-{
- if (unlikely(!new_size))
- return ZERO_SIZE_PTR;
-
- return __do_krealloc(p, new_size, flags);
-
-}
-EXPORT_SYMBOL(__krealloc);
-
-/**
- * krealloc - reallocate memory. The contents will remain unchanged.
- * @p: object to reallocate memory for.
- * @new_size: how many bytes of memory are required.
- * @flags: the type of memory to allocate.
- *
- * The contents of the object pointed to are preserved up to the
- * lesser of the new and old sizes. If @p is %NULL, krealloc()
- * behaves exactly like kmalloc(). If @new_size is 0 and @p is not a
- * %NULL pointer, the object pointed to is freed.
- */
-void *krealloc(const void *p, size_t new_size, gfp_t flags)
-{
- void *ret;
-
- if (unlikely(!new_size)) {
- kfree(p);
- return ZERO_SIZE_PTR;
- }
-
- ret = __do_krealloc(p, new_size, flags);
- if (ret && p != ret)
- kfree(p);
-
- return ret;
-}
-EXPORT_SYMBOL(krealloc);
-
-/**
- * kzfree - like kfree but zero memory
- * @p: object to free memory of
- *
- * The memory of the object @p points to is zeroed before freed.
- * If @p is %NULL, kzfree() does nothing.
- *
- * Note: this function zeroes the whole allocated buffer which can be a good
- * deal bigger than the requested buffer size passed to kmalloc(). So be
- * careful when using this function in performance sensitive code.
- */
-void kzfree(const void *p)
-{
- size_t ks;
- void *mem = (void *)p;
-
- if (unlikely(ZERO_OR_NULL_PTR(mem)))
- return;
- ks = ksize(mem);
- memset(mem, 0, ks);
- kfree(mem);
-}
-EXPORT_SYMBOL(kzfree);
-
/*
* strndup_user - duplicate an existing string from user space
* @s: The string to duplicate
@@ -504,11 +410,3 @@ out_mm:
out:
return res;
}
-
-/* Tracepoints definitions. */
-EXPORT_TRACEPOINT_SYMBOL(kmalloc);
-EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc);
-EXPORT_TRACEPOINT_SYMBOL(kmalloc_node);
-EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc_node);
-EXPORT_TRACEPOINT_SYMBOL(kfree);
-EXPORT_TRACEPOINT_SYMBOL(kmem_cache_free);