Author: kib
Date: Thu Jul 11 05:38:39 2013
New Revision: 253188
URL: http://svnweb.freebsd.org/changeset/base/253188
Log:
In the vm_page_set_invalid() function, do not assert that the page is
not busy, since its only caller brelse() can legitimately call it on
busy page. This happens for VOP_PUTPAGES() on filesystems that use
buffers and which VOP_WRITE() method marked the buffer containing page
as non-cacheable.
Reported and tested by: pho
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Modified:
head/sys/vm/vm_page.c
Modified: head/sys/vm/vm_page.c
==============================================================================
--- head/sys/vm/vm_page.c Thu Jul 11 05:36:26 2013 (r253187)
+++ head/sys/vm/vm_page.c Thu Jul 11 05:38:39 2013 (r253188)
@@ -2631,8 +2631,6 @@ vm_page_set_invalid(vm_page_t m, int bas
vm_page_bits_t bits;
VM_OBJECT_ASSERT_WLOCKED(m->object);
- KASSERT((m->oflags & VPO_BUSY) == 0,
- ("vm_page_set_invalid: page %p is busy", m));
bits = vm_page_bits(base, size);
if (m->valid == VM_PAGE_BITS_ALL && bits != 0)
pmap_remove_all(m);
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