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remove bogus permission check in uvm_map_clean(). fixes mmap/msync

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problem discussed/reported by jonathan and Andreas Wrede <andreas@planix.com>.
This commit is contained in:
chuck 1998-11-15 04:38:19 +00:00
parent 947b194cdf
commit 281eb8b87a
1 changed files with 4 additions and 5 deletions
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9
sys/uvm/uvm_map.c
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@ -1,4 +1,4 @@
/* $NetBSD: uvm_map.c,v 1.32 1998/10/24 13:32:34 mrg Exp $ */
/* $NetBSD: uvm_map.c,v 1.33 1998/11/15 04:38:19 chuck Exp $ */
/*
* XXXCDC: "ROUGH DRAFT" QUALITY UVM PRE-RELEASE FILE!
@ -2150,13 +2150,12 @@ uvm_map_clean(map, start, end, flags)
simple_lock(&object->vmobjlock);
/*
* flush pages if writing is allowed. note that object is
* locked.
* flush pages if we've got a valid backing object.
* note that object is locked.
* XXX should we continue on an error?
*/
if (object && object->pgops &&
(current->protection & VM_PROT_WRITE) != 0) {
if (object && object->pgops) {
if (!object->pgops->pgo_flush(object, offset,
offset+size, flags)) {
simple_unlock(&object->vmobjlock);