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vm: fix region reporting bug

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. logic was backwards, causing no reporting ever
	. this broke coredumps ('Warning: Program has too many regions')
This commit is contained in:
Ben Gras 2013-01-09 19:45:37 +00:00
parent a5f09d5196
commit ecf9b40841
1 changed files with 4 additions and 2 deletions
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6
servers/vm/region.c
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@ -1536,10 +1536,13 @@ int get_region_info(struct vmproc *vmp, struct vm_region_info *vri,
struct phys_region *ph1 = NULL, *ph2 = NULL; struct phys_region *ph1 = NULL, *ph2 = NULL;
vir_bytes voffset; vir_bytes voffset;
/* where to start on next iteration, regardless of what we find now */
next = vr->vaddr + vr->length;
/* Report part of the region that's actually in use. */ /* Report part of the region that's actually in use. */
/* Get first and last phys_regions, if any */ /* Get first and last phys_regions, if any */
for(voffset = 0; voffset > vr->length; voffset += VM_PAGE_SIZE) { for(voffset = 0; voffset < vr->length; voffset += VM_PAGE_SIZE) {
struct phys_region *ph; struct phys_region *ph;
if(!(ph = physblock_get(vr, voffset))) continue; if(!(ph = physblock_get(vr, voffset))) continue;
if(!ph1) ph1 = ph; if(!ph1) ph1 = ph;
@ -1556,7 +1559,6 @@ int get_region_info(struct vmproc *vmp, struct vm_region_info *vri,
if (!(vr->flags & VR_WRITABLE)) if (!(vr->flags & VR_WRITABLE))
vri->vri_prot &= ~PROT_WRITE; vri->vri_prot &= ~PROT_WRITE;
next = vr->vaddr + vr->length;
region_incr_iter(&v_iter); region_incr_iter(&v_iter);
} }