diff options
| -rw-r--r-- | sys/kern/vfs_bio.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index e9d8858..628938a 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -2135,6 +2135,7 @@ flushbufqueues(int flushdeps) { struct thread *td = curthread; struct vnode *vp; + struct mount *mp; struct buf *bp; int hasdeps; @@ -2176,12 +2177,16 @@ flushbufqueues(int flushdeps) * of vnode followed by buf lock. This is ok because * the NOWAIT will prevent deadlock. */ - if ((vp = bp->b_vp) == NULL || - vn_lock(vp, LK_EXCLUSIVE | LK_NOWAIT, td) == 0) { + vp = bp->b_vp; + if (vn_start_write(vp, &mp, V_NOWAIT) != 0) { + BUF_UNLOCK(bp); + continue; + } + if (vn_lock(vp, LK_EXCLUSIVE | LK_NOWAIT, td) == 0) { mtx_unlock(&bqlock); vfs_bio_awrite(bp); - if (vp != NULL) - VOP_UNLOCK(vp, 0, td); + vn_finished_write(mp); + VOP_UNLOCK(vp, 0, td); flushwithdeps += hasdeps; return (1); } |
