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Change VM object lock assertion to match locking higher in the call

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chain. This repairs a panic observed during pageout on some 64-bit
PowerPC systems.

Submitted by:	grehan
Approved by:	re (kib)
MFC after:	2 weeks
Revisit after:	10.0
This commit is contained in:
Nathan Whitehorn 2013-09-13 01:12:45 +00:00
parent cd04f04fb5
commit 1330c354c5
1 changed files with 1 additions and 1 deletions
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2
sys/powerpc/aim/mmu_oea64.c
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@ -1523,7 +1523,7 @@ moea64_is_modified(mmu_t mmu, vm_page_t m)
* concurrently set while the object is locked. Thus, if PGA_WRITEABLE
* is clear, no PTEs can have LPTE_CHG set.
*/
VM_OBJECT_ASSERT_WLOCKED(m->object);
VM_OBJECT_ASSERT_LOCKED(m->object);
if (!vm_page_xbusied(m) && (m->aflags & PGA_WRITEABLE) == 0)
return (FALSE);
return (moea64_query_bit(mmu, m, LPTE_CHG));