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Avoid pointless (but harmless) actions on unmanaged pages.

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Reviewed by:	kib
Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
Alan Cox 2014-08-14 15:46:15 +00:00
parent da02ed7331
commit 9f746b66df
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269978
1 changed files with 3 additions and 2 deletions
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5
sys/vm/vm_fault.c
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@ -851,8 +851,9 @@ RetryFault:;
if (hardfault)
fs.entry->next_read = fs.pindex + faultcount - reqpage;
if ((prot & VM_PROT_WRITE) != 0 ||
(fault_flags & VM_FAULT_DIRTY) != 0) {
if (((prot & VM_PROT_WRITE) != 0 ||
(fault_flags & VM_FAULT_DIRTY) != 0) &&
(fs.m->oflags & VPO_UNMANAGED) == 0) {
vm_object_set_writeable_dirty(fs.object);
/*