diff options
Diffstat (limited to 'sys/geom/geom_disk.c')
| -rw-r--r-- | sys/geom/geom_disk.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sys/geom/geom_disk.c b/sys/geom/geom_disk.c index 6115106..1a65d89 100644 --- a/sys/geom/geom_disk.c +++ b/sys/geom/geom_disk.c @@ -202,8 +202,10 @@ g_disk_done(struct bio *bp) if (bp2->bio_error == 0) bp2->bio_error = bp->bio_error; bp2->bio_completed += bp->bio_completed; - if ((dp = bp2->bio_to->geom->softc)) + if ((bp->bio_cmd & (BIO_READ|BIO_WRITE|BIO_DELETE)) && + (dp = bp2->bio_to->geom->softc)) { devstat_end_transaction_bio(dp->d_devstat, bp); + } g_destroy_bio(bp); bp2->bio_inbed++; if (bp2->bio_children == bp2->bio_inbed) { @@ -304,6 +306,24 @@ g_disk_start(struct bio *bp) else error = ENOIOCTL; break; + case BIO_FLUSH: + g_trace(G_T_TOPOLOGY, "g_disk_flushcache(%s)", + bp->bio_to->name); + if (!(dp->d_flags & DISKFLAG_CANFLUSHCACHE)) { + g_io_deliver(bp, ENODEV); + return; + } + bp2 = g_clone_bio(bp); + if (bp2 == NULL) { + g_io_deliver(bp, ENOMEM); + return; + } + bp2->bio_done = g_disk_done; + bp2->bio_disk = dp; + g_disk_lock_giant(dp); + dp->d_strategy(bp2); + g_disk_unlock_giant(dp); + break; default: error = EOPNOTSUPP; break; |
