Date: Sat, 2 Aug 2014 17:58:20 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r269438 - head/sys/vm Message-ID: <201408021758.s72HwKQ8091657@svn.freebsd.org>
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Author: alc Date: Sat Aug 2 17:58:20 2014 New Revision: 269438 URL: http://svnweb.freebsd.org/changeset/base/269438 Log: Rewrite a loop in vm_map_wire() so that gcc doesn't think that the variable "rv" is uninitialized. Reported by: bz Modified: head/sys/vm/vm_map.c Modified: head/sys/vm/vm_map.c ============================================================================== --- head/sys/vm/vm_map.c Sat Aug 2 17:45:08 2014 (r269437) +++ head/sys/vm/vm_map.c Sat Aug 2 17:58:20 2014 (r269438) @@ -2569,8 +2569,8 @@ vm_map_wire(vm_map_t map, vm_offset_t st vm_map_busy(map); vm_map_unlock(map); - for (faddr = saved_start; faddr < saved_end; faddr += - PAGE_SIZE) { + faddr = saved_start; + do { /* * Simulate a fault to get the page and enter * it into the physical map. @@ -2578,7 +2578,7 @@ vm_map_wire(vm_map_t map, vm_offset_t st if ((rv = vm_fault(map, faddr, VM_PROT_NONE, VM_FAULT_CHANGE_WIRING)) != KERN_SUCCESS) break; - } + } while ((faddr += PAGE_SIZE) < saved_end); vm_map_lock(map); vm_map_unbusy(map); if (last_timestamp + 1 != map->timestamp) {
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