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authoralc <alc@FreeBSD.org>2003-04-24 04:31:25 +0000
committeralc <alc@FreeBSD.org>2003-04-24 04:31:25 +0000
commit87da2c3cf37429dd7554a13d8b70a046ccc3edcf (patch)
tree524c091529a13b4f30095fe4af93a54b4cd973f6 /sys/security/mac/mac_pipe.c
parent51f01cb3f731c451c22c07d8bb6a6e9ecffb72d1 (diff)
downloadFreeBSD-src-87da2c3cf37429dd7554a13d8b70a046ccc3edcf.zip
FreeBSD-src-87da2c3cf37429dd7554a13d8b70a046ccc3edcf.tar.gz
- Acquire the vm_object's lock when performing vm_object_page_clean().
- Add a parameter to vm_pageout_flush() that tells vm_pageout_flush() whether its caller has locked the vm_object. (This is a temporary measure to bootstrap vm_object locking.)
Diffstat (limited to 'sys/security/mac/mac_pipe.c')
-rw-r--r--sys/security/mac/mac_pipe.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/security/mac/mac_pipe.c b/sys/security/mac/mac_pipe.c
index 9289d7f..15c95a0 100644
--- a/sys/security/mac/mac_pipe.c
+++ b/sys/security/mac/mac_pipe.c
@@ -2093,11 +2093,13 @@ mac_cred_mmapped_drop_perms_recurse(struct thread *td, struct ucred *cred,
*/
vm_object_reference(object);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
+ VM_OBJECT_LOCK(object);
vm_object_page_clean(object,
OFF_TO_IDX(offset),
OFF_TO_IDX(offset + vme->end - vme->start +
PAGE_MASK),
OBJPC_SYNC);
+ VM_OBJECT_UNLOCK(object);
VOP_UNLOCK(vp, 0, td);
vm_object_deallocate(object);
/*
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