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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2007-07-09 12:39:20 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2007-07-16 08:52:45 +0200 |
| commit | 45e79a3acdcf54113b3d7b23e9e64e6541dbfeb5 (patch) | |
| tree | b8e7598b26ce446577e162189e635f6b87b10a5b /block | |
| parent | 7e75d73080d822d2bbbd5b0f7f293719dd1f9109 (diff) | |
| download | lwn-45e79a3acdcf54113b3d7b23e9e64e6541dbfeb5.tar.gz lwn-45e79a3acdcf54113b3d7b23e9e64e6541dbfeb5.zip | |
bsg: add a request_queue argument to scsi_cmd_ioctl()
bsg uses scsi_cmd_ioctl() for some SCSI/sg ioctl
commands. scsi_cmd_ioctl() gets a request queue from a gendisk
arguement. This prevents bsg being bound to SCSI devices that don't
have a gendisk (like OSD). This adds a request_queue argument to
scsi_cmd_ioctl(). The SCSI/sg ioctl commands doesn't use a gendisk so
it's safe for any SCSI devices to use scsi_cmd_ioctl().
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bsg.c | 2 | ||||
| -rw-r--r-- | block/scsi_ioctl.c | 10 |
2 files changed, 4 insertions, 8 deletions
diff --git a/block/bsg.c b/block/bsg.c index c85d961ee41e..0427ece9b6d8 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -900,7 +900,7 @@ bsg_ioctl(struct inode *inode, struct file *file, unsigned int cmd, case SG_EMULATED_HOST: case SCSI_IOCTL_SEND_COMMAND: { void __user *uarg = (void __user *) arg; - return scsi_cmd_ioctl(file, bd->disk, cmd, uarg); + return scsi_cmd_ioctl(file, bd->queue, bd->disk, cmd, uarg); } case SG_IO: { struct request *rq; diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index db53b2c268d3..a26ba07955fe 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -548,16 +548,12 @@ static inline int blk_send_start_stop(request_queue_t *q, struct gendisk *bd_dis return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data); } -int scsi_cmd_ioctl(struct file *file, struct gendisk *bd_disk, unsigned int cmd, void __user *arg) +int scsi_cmd_ioctl(struct file *file, struct request_queue *q, + struct gendisk *bd_disk, unsigned int cmd, void __user *arg) { - request_queue_t *q; int err; - q = bd_disk->queue; - if (!q) - return -ENXIO; - - if (blk_get_queue(q)) + if (!q || blk_get_queue(q)) return -ENXIO; switch (cmd) { |