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Add page queues locking to vunmapbuf().

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Obtained from: sparc64
Approved by:  benno
This commit is contained in:
Peter Grehan 2003-01-08 12:29:59 +00:00
parent d2e30522fe
commit 7d13e76928
2 changed files with 4 additions and 0 deletions
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2
sys/powerpc/aim/vm_machdep.c
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@ -296,8 +296,10 @@ vunmapbuf(struct buf *bp)
npages = bp->b_npages; npages = bp->b_npages;
pmap_qremove(trunc_page((vm_offset_t)bp->b_data), pmap_qremove(trunc_page((vm_offset_t)bp->b_data),
npages); npages);
vm_page_lock_queues();
for (pidx = 0; pidx < npages; pidx++) for (pidx = 0; pidx < npages; pidx++)
vm_page_unhold(bp->b_pages[pidx]); vm_page_unhold(bp->b_pages[pidx]);
vm_page_unlock_queues();
bp->b_data = bp->b_saveaddr; bp->b_data = bp->b_saveaddr;
} }

2
sys/powerpc/powerpc/vm_machdep.c
View File

@ -296,8 +296,10 @@ vunmapbuf(struct buf *bp)
npages = bp->b_npages; npages = bp->b_npages;
pmap_qremove(trunc_page((vm_offset_t)bp->b_data), pmap_qremove(trunc_page((vm_offset_t)bp->b_data),
npages); npages);
vm_page_lock_queues();
for (pidx = 0; pidx < npages; pidx++) for (pidx = 0; pidx < npages; pidx++)
vm_page_unhold(bp->b_pages[pidx]); vm_page_unhold(bp->b_pages[pidx]);
vm_page_unlock_queues();
bp->b_data = bp->b_saveaddr; bp->b_data = bp->b_saveaddr;
} }