diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2010-06-15 10:59:53 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2010-06-15 10:59:53 +0000 |
| commit | 3d704e2bf3afb439438b757addbb18ab6d7f131b (patch) | |
| tree | 9aff5eb371c32ec0671a6ada140a6eac50c55f17 /sys/dev/softraid.c | |
| parent | bfb81df74dd2ca5e81b9f42a6f846bf0d18bb188 (diff) | |
softraid doesnt provide disk cache settings to tweak, mark those ioctls as
not supported.
this prevents a panic caused by recursively entering the ioctl handler that
now happens on boot when sd tries to enable write cache on all disks.
found by ckeuthe@
tested by todd@
Diffstat (limited to 'sys/dev/softraid.c')
| -rw-r--r-- | sys/dev/softraid.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/dev/softraid.c b/sys/dev/softraid.c index c679eb27ce0..44ac757c6c0 100644 --- a/sys/dev/softraid.c +++ b/sys/dev/softraid.c @@ -1,4 +1,4 @@ -/* $OpenBSD: softraid.c,v 1.205 2010/06/15 04:11:34 dlg Exp $ */ +/* $OpenBSD: softraid.c,v 1.206 2010/06/15 10:59:52 dlg Exp $ */ /* * Copyright (c) 2007, 2008, 2009 Marco Peereboom <marco@peereboom.us> * Copyright (c) 2008 Chris Kuethe <ckuethe@openbsd.org> @@ -1967,7 +1967,13 @@ sr_scsi_ioctl(struct scsi_link *link, u_long cmd, caddr_t addr, int flag) DNPRINTF(SR_D_IOCTL, "%s: sr_scsi_ioctl cmd: %#x\n", DEVNAME((struct sr_softc *)link->adapter_softc), cmd); - return (sr_ioctl(link->adapter_softc, cmd, addr)); + switch (cmd) { + case DIOCGCACHE: + case DIOCSCACHE: + return (EOPNOTSUPP); + default: + return (sr_ioctl(link->adapter_softc, cmd, addr)); + } } int |