diff options
| author | Xi Wang <xi.wang@gmail.com> | 2012-05-31 16:26:04 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-31 12:54:53 -0700 |
| commit | b06b5c6204bdc7c571feedb6b16188ba62feb9a6 (patch) | |
| tree | 91f752326bfe880af1170cc9a9a55b8af21c7e50 /mm/vmalloc.c | |
| parent | 883ea134ae75eb03c9f08553a81957a808cee96b (diff) | |
introduce SIZE_MAX
commit a3860c1c5dd1137db23d7786d284939c5761d517 upstream.
ULONG_MAX is often used to check for integer overflow when calculating
allocation size. While ULONG_MAX happens to work on most systems, there
is no guarantee that `size_t' must be the same size as `long'.
This patch introduces SIZE_MAX, the maximum value of `size_t', to improve
portability and readability for allocation size validation.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Acked-by: Alex Elder <elder@dreamhost.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Qiang Huang <h.huangqiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/vmalloc.c')
0 files changed, 0 insertions, 0 deletions