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Allow upper layers to discover than BIO_DELETE and/or BIO_FLUSH is not

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supported by returning EOPNOTSUPP instead of 0 or ENODEV.

MFC after:	3 days
This commit is contained in:
pjd 2011-10-25 14:07:17 +00:00
parent 2536f7a375
commit 2f532a77b7
1 changed files with 3 additions and 3 deletions
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6
sys/geom/geom_disk.c
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@ -305,7 +305,7 @@ g_disk_start(struct bio *bp)
switch(bp->bio_cmd) {
case BIO_DELETE:
if (!(dp->d_flags & DISKFLAG_CANDELETE)) {
error = 0;
error = EOPNOTSUPP;
break;
}
/* fall-through */
@ -394,8 +394,8 @@ g_disk_start(struct bio *bp)
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;
error = EOPNOTSUPP;
break;
}
bp2 = g_clone_bio(bp);
if (bp2 == NULL) {