Messages in this thread Patch in this message | | | From | Paolo Bonzini <> | Subject | [PATCH 3/3] nbd: show read-only state in sysfs | Date | Tue, 12 Feb 2013 17:06:11 +0100 |
| |
Pass the read-only flag to set_device_ro, so that it will be visible to the block layer and in sysfs.
Cc: <nbd-general@lists.sf.net> Cc: Paul Clements <Paul.Clements@steeleye.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- drivers/block/nbd.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index a9c5c7a..ef17c2e 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -703,6 +703,8 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd, mutex_unlock(&nbd->tx_lock); + if (nbd->flags & NBD_FLAG_READ_ONLY) + set_device_ro(bdev, true); if (nbd->flags & NBD_FLAG_SEND_TRIM) queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue); @@ -730,6 +732,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd, dev_warn(disk_to_dev(nbd->disk), "queue cleared\n"); kill_bdev(bdev); queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue); + set_device_ro(bdev, false); if (file) fput(file); nbd->flags = 0; -- 1.7.1
| |