diff options
Diffstat (limited to 'sys/security/mac/mac_process.c')
| -rw-r--r-- | sys/security/mac/mac_process.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/sys/security/mac/mac_process.c b/sys/security/mac/mac_process.c index 214e748..8e5e5bc 100644 --- a/sys/security/mac/mac_process.c +++ b/sys/security/mac/mac_process.c @@ -254,7 +254,7 @@ mac_proc_vm_revoke_recurse(struct thread *td, struct ucred *cred, struct vm_map *map) { vm_map_entry_t vme; - int vfslocked, result; + int result; vm_prot_t revokeperms; vm_object_t backing_object, object; vm_ooffset_t offset; @@ -300,7 +300,6 @@ mac_proc_vm_revoke_recurse(struct thread *td, struct ucred *cred, if (object->type != OBJT_VNODE) continue; vp = (struct vnode *)object->handle; - vfslocked = VFS_LOCK_GIANT(vp->v_mount); vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); result = vme->max_protection; mac_vnode_check_mmap_downgrade(cred, vp, &result); @@ -310,10 +309,8 @@ mac_proc_vm_revoke_recurse(struct thread *td, struct ucred *cred, * but a policy needs to get removed. */ revokeperms = vme->max_protection & ~result; - if (!revokeperms) { - VFS_UNLOCK_GIANT(vfslocked); + if (!revokeperms) continue; - } printf("pid %ld: revoking %s perms from %#lx:%ld " "(max %s/cur %s)\n", (long)td->td_proc->p_pid, prot2str(revokeperms), (u_long)vme->start, @@ -369,7 +366,6 @@ mac_proc_vm_revoke_recurse(struct thread *td, struct ucred *cred, vme->protection & ~revokeperms); vm_map_simplify_entry(map, vme); } - VFS_UNLOCK_GIANT(vfslocked); } vm_map_unlock(map); } |
