include/linux/lsm_hooks.h reports the result of the LSM infrastructure to
the callers, not what LSMs should return to the LSM infrastructure.
Clarify that and add that if all LSMs return a positive value
__vm_enough_memory() will be called with cap_sys_admin set. If at least one
LSM returns 0 or negative, it will be called with cap_sys_admin cleared.
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
* Check permissions for allocating a new virtual mapping.
* @mm contains the mm struct it is being added to.
* @pages contains the number of pages.
- * Return 0 if permission is granted.
+ * Return 0 if permission is granted by the LSM infrastructure to the
+ * caller. If all LSMs return a positive value, __vm_enough_memory() will
+ * be called with cap_sys_admin set. If at least one LSM returns 0 or
+ * negative, __vm_enough_memory() will be called with cap_sys_admin
+ * cleared.
*
* @ismaclabel:
* Check if the extended attribute specified by @name