#include <linux/kernel.h>
#include <linux/slab.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/posix_acl.h>
EXPORT_SYMBOL(posix_acl_init);
EXPORT_SYMBOL(posix_acl_alloc);
-EXPORT_SYMBOL(posix_acl_clone);
EXPORT_SYMBOL(posix_acl_valid);
EXPORT_SYMBOL(posix_acl_equiv_mode);
EXPORT_SYMBOL(posix_acl_from_mode);
-EXPORT_SYMBOL(posix_acl_create_masq);
-EXPORT_SYMBOL(posix_acl_chmod_masq);
-EXPORT_SYMBOL(posix_acl_permission);
/*
* Init a fresh posix_acl
/*
* Clone an ACL.
*/
-struct posix_acl *
+static struct posix_acl *
posix_acl_clone(const struct posix_acl *acl, gfp_t flags)
{
struct posix_acl *clone = NULL;
* system calls. All permissions that are not granted by the acl are removed.
* The permissions in the acl are changed to reflect the mode_p parameter.
*/
-int
-posix_acl_create_masq(struct posix_acl *acl, mode_t *mode_p)
+static int posix_acl_create_masq(struct posix_acl *acl, mode_t *mode_p)
{
struct posix_acl_entry *pa, *pe;
struct posix_acl_entry *group_obj = NULL, *mask_obj = NULL;
/*
* Modify the ACL for the chmod syscall.
*/
-int
-posix_acl_chmod_masq(struct posix_acl *acl, mode_t mode)
+static int posix_acl_chmod_masq(struct posix_acl *acl, mode_t mode)
{
struct posix_acl_entry *group_obj = NULL, *mask_obj = NULL;
struct posix_acl_entry *pa, *pe;
return 0;
}
+
+int
+posix_acl_create(struct posix_acl **acl, gfp_t gfp, mode_t *mode_p)
+{
+ struct posix_acl *clone = posix_acl_clone(*acl, gfp);
+ int err = -ENOMEM;
+ if (clone) {
+ err = posix_acl_create_masq(clone, mode_p);
+ if (err < 0) {
+ posix_acl_release(clone);
+ clone = NULL;
+ }
+ }
+ posix_acl_release(*acl);
+ *acl = clone;
+ return err;
+}
+EXPORT_SYMBOL(posix_acl_create);
+
+int
+posix_acl_chmod(struct posix_acl **acl, gfp_t gfp, mode_t mode)
+{
+ struct posix_acl *clone = posix_acl_clone(*acl, gfp);
+ int err = -ENOMEM;
+ if (clone) {
+ err = posix_acl_chmod_masq(clone, mode);
+ if (err) {
+ posix_acl_release(clone);
+ clone = NULL;
+ }
+ }
+ posix_acl_release(*acl);
+ *acl = clone;
+ return err;
+}
+EXPORT_SYMBOL(posix_acl_chmod);