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vm_reserv: fix zero-boundary error

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Handle specially the boundary==0 case of vm_reserv_reclaim_config,
by turning off boundary adjustment in that case.

Reviewed by:	alc
Tested by:	pho, madpilot
This commit is contained in:
Doug Moore 2021-12-26 11:40:27 -06:00
parent 2e59c9c7f0
commit 49fd2d51f0
1 changed files with 3 additions and 2 deletions
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5
sys/vm/vm_reserv.c
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@ -1333,7 +1333,7 @@ vm_reserv_reclaim_contig(int domain, u_long npages, vm_paddr_t low,
* doesn't include a boundary-multiple within it. Otherwise,
* no boundary-constrained allocation is possible.
*/
if (size > boundary)
if (size > boundary && boundary > 0)
return (NULL);
marker = &vm_rvd[domain].marker;
queue = &vm_rvd[domain].partpop;
@ -1344,7 +1344,8 @@ vm_reserv_reclaim_contig(int domain, u_long npages, vm_paddr_t low,
*/
ppn_align = (int)(ulmin(ulmax(PAGE_SIZE, alignment),
VM_LEVEL_0_SIZE) >> PAGE_SHIFT);
ppn_bound = (int)(MIN(MAX(PAGE_SIZE, boundary),
ppn_bound = boundary == 0 ? VM_LEVEL_0_NPAGES :
(int)(MIN(MAX(PAGE_SIZE, boundary),
VM_LEVEL_0_SIZE) >> PAGE_SHIFT);
vm_reserv_domain_scan_lock(domain);