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| author | alc <alc@FreeBSD.org> | 2003-04-20 00:17:05 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2003-04-20 00:17:05 +0000 |
| commit | c9e51c9b11aa77bdcbfe459b0d81939b170d54e7 (patch) | |
| tree | 55c966545fe49db5177a26ac9faf0a3d2324b669 /sys/kern/vfs_bio.c | |
| parent | 3214ca63eafd5a8ddcc943aa3208168b767c77ba (diff) | |
| download | FreeBSD-src-c9e51c9b11aa77bdcbfe459b0d81939b170d54e7.zip FreeBSD-src-c9e51c9b11aa77bdcbfe459b0d81939b170d54e7.tar.gz | |
Lock the vm_object in vfs_busy_pages().
Diffstat (limited to 'sys/kern/vfs_bio.c')
| -rw-r--r-- | sys/kern/vfs_bio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 6fba76f..00d3c0a 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -3322,6 +3322,8 @@ vfs_busy_pages(struct buf * bp, int clear_modify) KASSERT(bp->b_offset != NOOFFSET, ("vfs_busy_pages: no buffer offset")); vfs_setdirty(bp); + if (obj != NULL) + VM_OBJECT_LOCK(obj); retry: vm_page_lock_queues(); for (i = 0; i < bp->b_npages; i++) { @@ -3365,6 +3367,8 @@ retry: foff = (foff + PAGE_SIZE) & ~(off_t)PAGE_MASK; } vm_page_unlock_queues(); + if (obj != NULL) + VM_OBJECT_UNLOCK(obj); if (bogus) pmap_qenter(trunc_page((vm_offset_t)bp->b_data), bp->b_pages, bp->b_npages); } |
