diff options
author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2010-05-06 12:40:02 +0900 |
---|---|---|
committer | James Morris <jmorris@namei.org> | 2010-05-10 17:59:02 +1000 |
commit | 9e4b50e93786d00c703f16ed46e6a4029c0dfdd1 (patch) | |
tree | 51bf6072802888592ae98b9a6c8a26fcb2e1988f /security/tomoyo/realpath.c | |
parent | 83c36ccfe4d849f482ea0a62402c7624f4e59f0e (diff) | |
download | linux-9e4b50e93786d00c703f16ed46e6a4029c0dfdd1.tar.bz2 |
TOMOYO: Use stack memory for pending entry.
Use stack memory for pending entry to reduce kmalloc() which will be kfree()d.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/realpath.c')
-rw-r--r-- | security/tomoyo/realpath.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c index 62062a68525a..d1b96f019621 100644 --- a/security/tomoyo/realpath.c +++ b/security/tomoyo/realpath.c @@ -223,6 +223,25 @@ bool tomoyo_memory_ok(void *ptr) } /** + * tomoyo_commit_ok - Check memory quota. + * + * @data: Data to copy from. + * @size: Size in byte. + * + * Returns pointer to allocated memory on success, NULL otherwise. + */ +void *tomoyo_commit_ok(void *data, const unsigned int size) +{ + void *ptr = kzalloc(size, GFP_NOFS); + if (tomoyo_memory_ok(ptr)) { + memmove(ptr, data, size); + memset(data, 0, size); + return ptr; + } + return NULL; +} + +/** * tomoyo_memory_free - Free memory for elements. * * @ptr: Pointer to allocated memory. |