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block: add and use scsi_blk_cmd_ioctl

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Introduce a wrapper around scsi_cmd_ioctl that takes a block device.

The function will then be enhanced to detect partition block devices
and, in that case, subject the ioctls to whitelisting.

Cc: linux-scsi@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paolo Bonzini
2012-01-12 16:01:27 +01:00
committed by Linus Torvalds
parent 81d48f0aee
commit 577ebb374c
8 changed files with 18 additions and 12 deletions
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7
block/scsi_ioctl.c
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@@ -690,6 +690,13 @@ int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mod
}
EXPORT_SYMBOL(scsi_cmd_ioctl);
int scsi_cmd_blk_ioctl(struct block_device *bd, fmode_t mode,
unsigned int cmd, void __user *arg)
{
return scsi_cmd_ioctl(bd->bd_disk->queue, bd->bd_disk, mode, cmd, arg);
}
EXPORT_SYMBOL(scsi_cmd_blk_ioctl);
static int __init blk_scsi_ioctl_init(void)
{
blk_set_cmd_filter_defaults(&blk_default_cmd_filter);