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authorDmitry Kasatkin <dmitry.kasatkin@gmail.com>2014-10-01 21:43:10 +0300
committerMimi Zohar <zohar@linux.vnet.ibm.com>2014-10-07 14:32:54 -0400
commit456f5fd3f6017f10d04d459159ac7bd9e3815c5e (patch)
tree304de71a234e3c302f7b372f72affd5661f30221 /security
parentc2baec7ffaf6a2c15e03028ed9ef82a92cc49a94 (diff)
downloadop-kernel-dev-456f5fd3f6017f10d04d459159ac7bd9e3815c5e.zip
op-kernel-dev-456f5fd3f6017f10d04d459159ac7bd9e3815c5e.tar.gz
ima: use path names cache
__getname() uses slab allocation which is faster than kmalloc. Make use of it. Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security')
-rw-r--r--security/integrity/ima/ima_api.c4
-rw-r--r--security/integrity/ima/ima_main.c3
2 files changed, 4 insertions, 3 deletions
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 8688597..a99eb6d 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -325,11 +325,11 @@ const char *ima_d_path(struct path *path, char **pathbuf)
{
char *pathname = NULL;
- *pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
+ *pathbuf = __getname();
if (*pathbuf) {
pathname = d_absolute_path(path, *pathbuf, PATH_MAX);
if (IS_ERR(pathname)) {
- kfree(*pathbuf);
+ __putname(*pathbuf);
*pathbuf = NULL;
pathname = NULL;
}
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 72faf0b..eeee00dc 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -246,7 +246,8 @@ out_digsig:
rc = -EACCES;
kfree(xattr_value);
out_free:
- kfree(pathbuf);
+ if (pathbuf)
+ __putname(pathbuf);
out:
mutex_unlock(&inode->i_mutex);
if ((rc && must_appraise) && (ima_appraise & IMA_APPRAISE_ENFORCE))
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