diff options
Diffstat (limited to 'sys/kern/vfs_bio.c')
| -rw-r--r-- | sys/kern/vfs_bio.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 58481a8..317a81a 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -2716,7 +2716,7 @@ vfs_vmio_extend(struct buf *bp, int desiredpages, int size) */ obj = bp->b_bufobj->bo_object; VM_OBJECT_WLOCK(obj); - while (bp->b_npages < desiredpages) { + if (bp->b_npages < desiredpages) { /* * We must allocate system pages since blocking * here could interfere with paging I/O, no @@ -2727,14 +2727,12 @@ vfs_vmio_extend(struct buf *bp, int desiredpages, int size) * deadlocks once allocbuf() is called after * pages are vfs_busy_pages(). */ - m = vm_page_grab(obj, OFF_TO_IDX(bp->b_offset) + bp->b_npages, - VM_ALLOC_NOBUSY | VM_ALLOC_SYSTEM | - VM_ALLOC_WIRED | VM_ALLOC_IGN_SBUSY | - VM_ALLOC_COUNT(desiredpages - bp->b_npages)); - if (m->valid == 0) - bp->b_flags &= ~B_CACHE; - bp->b_pages[bp->b_npages] = m; - ++bp->b_npages; + vm_page_grab_pages(obj, + OFF_TO_IDX(bp->b_offset) + bp->b_npages, + VM_ALLOC_SYSTEM | VM_ALLOC_IGN_SBUSY | + VM_ALLOC_NOBUSY | VM_ALLOC_WIRED, + &bp->b_pages[bp->b_npages], desiredpages - bp->b_npages); + bp->b_npages = desiredpages; } /* |
