diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 21:14:42 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 21:14:42 -0700 |
commit | 33caee39925b887a99a2400dc5c980097c3573f9 (patch) | |
tree | 8e68ad97e1fee88c4a3f31453041f8d139f2027e /mm/util.c | |
parent | 6456a0438b984186a0c9c8ecc9fe3d97b7ac3613 (diff) | |
parent | f84223087402c45179be5e7060c5736c17a7b271 (diff) |
Merge branch 'akpm' (patchbomb from Andrew Morton)
Merge incoming from Andrew Morton:
- Various misc things.
- arch/sh updates.
- Part of ocfs2. Review is slow.
- Slab updates.
- Most of -mm.
- printk updates.
- lib/ updates.
- checkpatch updates.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (226 commits)
checkpatch: update $declaration_macros, add uninitialized_var
checkpatch: warn on missing spaces in broken up quoted
checkpatch: fix false positives for --strict "space after cast" test
checkpatch: fix false positive MISSING_BREAK warnings with --file
checkpatch: add test for native c90 types in unusual order
checkpatch: add signed generic types
checkpatch: add short int to c variable types
checkpatch: add for_each tests to indentation and brace tests
checkpatch: fix brace style misuses of else and while
checkpatch: add --fix option for a couple OPEN_BRACE misuses
checkpatch: use the correct indentation for which()
checkpatch: add fix_insert_line and fix_delete_line helpers
checkpatch: add ability to insert and delete lines to patch/file
checkpatch: add an index variable for fixed lines
checkpatch: warn on break after goto or return with same tab indentation
checkpatch: emit a warning on file add/move/delete
checkpatch: add test for commit id formatting style in commit log
checkpatch: emit fewer kmalloc_array/kcalloc conversion warnings
checkpatch: improve "no space after cast" test
checkpatch: allow multiple const * types
...
Diffstat (limited to 'mm/util.c')
-rw-r--r-- | mm/util.c | 102 |
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); |