Author: jhibbits
Date: Mon Oct 7 02:36:42 2019
New Revision: 353158
URL: https://svnweb.freebsd.org/changeset/base/353158
Log:
powerpc64/pmap: Fix release order to match lock order in moea64_enter()
Page PV lock is always taken first, so should be released last. This also
(trivially) shortens the hold time of the pmap lock.
Submitted by: mjg
Modified:
head/sys/powerpc/aim/mmu_oea64.c
Modified: head/sys/powerpc/aim/mmu_oea64.c
==============================================================================
--- head/sys/powerpc/aim/mmu_oea64.c Mon Oct 7 01:03:14 2019
(r353157)
+++ head/sys/powerpc/aim/mmu_oea64.c Mon Oct 7 02:36:42 2019
(r353158)
@@ -1453,8 +1453,8 @@ moea64_enter(mmu_t mmu, pmap_t pmap, vm_offset_t va, v
moea64_pvo_enter(mmu, pvo, pvo_head, NULL);
}
}
- PV_PAGE_UNLOCK(m);
PMAP_UNLOCK(pmap);
+ PV_PAGE_UNLOCK(m);
/* Free any dead pages */
if (error == EEXIST) {
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