X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=block%2Fscsi_ioctl.c;h=78199c08ec92fc7c23549ef41c7d5b0862cfb938;hb=2cdf79cafbd11580f5b63cd4993b45c1c4952415;hp=db53b2c268d301f47081626c6393201d117876e5;hpb=337ad41deae1b56e56731246322a93251df86e79;p=safe%2Fjmp%2Flinux-2.6 diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index db53b2c..78199c0 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -33,13 +33,12 @@ #include /* Command group 3 is reserved and should never be used. */ -const unsigned char scsi_command_size[8] = +const unsigned char scsi_command_size_tbl[8] = { 6, 10, 10, 12, 16, 12, 10, 10 }; - -EXPORT_SYMBOL(scsi_command_size); +EXPORT_SYMBOL(scsi_command_size_tbl); #include @@ -49,22 +48,22 @@ static int sg_get_version(int __user *p) return put_user(sg_version_num, p); } -static int scsi_get_idlun(request_queue_t *q, int __user *p) +static int scsi_get_idlun(struct request_queue *q, int __user *p) { return put_user(0, p); } -static int scsi_get_bus(request_queue_t *q, int __user *p) +static int scsi_get_bus(struct request_queue *q, int __user *p) { return put_user(0, p); } -static int sg_get_timeout(request_queue_t *q) +static int sg_get_timeout(struct request_queue *q) { return q->sg_timeout / (HZ / USER_HZ); } -static int sg_set_timeout(request_queue_t *q, int __user *p) +static int sg_set_timeout(struct request_queue *q, int __user *p) { int timeout, err = get_user(timeout, p); @@ -74,14 +73,14 @@ static int sg_set_timeout(request_queue_t *q, int __user *p) return err; } -static int sg_get_reserved_size(request_queue_t *q, int __user *p) +static int sg_get_reserved_size(struct request_queue *q, int __user *p) { unsigned val = min(q->sg_reserved_size, q->max_sectors << 9); return put_user(val, p); } -static int sg_set_reserved_size(request_queue_t *q, int __user *p) +static int sg_set_reserved_size(struct request_queue *q, int __user *p) { int size, err = get_user(size, p); @@ -101,7 +100,7 @@ static int sg_set_reserved_size(request_queue_t *q, int __user *p) * will always return that we are ATAPI even for a real SCSI drive, I'm not * so sure this is worth doing anything about (why would you care??) */ -static int sg_emulated_host(request_queue_t *q, int __user *p) +static int sg_emulated_host(struct request_queue *q, int __user *p) { return put_user(1, p); } @@ -214,11 +213,9 @@ int blk_verify_command(unsigned char *cmd, int has_write_perm) } EXPORT_SYMBOL_GPL(blk_verify_command); -int blk_fill_sghdr_rq(request_queue_t *q, struct request *rq, - struct sg_io_hdr *hdr, int has_write_perm) +static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq, + struct sg_io_hdr *hdr, int has_write_perm) { - memset(rq->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */ - if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len)) return -EFAULT; if (blk_verify_command(rq->cmd, has_write_perm)) @@ -230,7 +227,7 @@ int blk_fill_sghdr_rq(request_queue_t *q, struct request *rq, rq->cmd_len = hdr->cmd_len; rq->cmd_type = REQ_TYPE_BLOCK_PC; - rq->timeout = (hdr->timeout * HZ) / 1000; + rq->timeout = msecs_to_jiffies(hdr->timeout); if (!rq->timeout) rq->timeout = q->sg_timeout; if (!rq->timeout) @@ -238,22 +235,20 @@ int blk_fill_sghdr_rq(request_queue_t *q, struct request *rq, return 0; } -EXPORT_SYMBOL_GPL(blk_fill_sghdr_rq); /* * unmap a request that was previously mapped to this sg_io_hdr. handles * both sg and non-sg sg_io_hdr. */ -int blk_unmap_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr) +static int blk_unmap_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr) { blk_rq_unmap_user(rq->bio); blk_put_request(rq); return 0; } -EXPORT_SYMBOL_GPL(blk_unmap_sghdr_rq); -int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr, - struct bio *bio) +static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr, + struct bio *bio) { int r, ret = 0; @@ -287,9 +282,8 @@ int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr, return r; } -EXPORT_SYMBOL_GPL(blk_complete_sghdr_rq); -static int sg_io(struct file *file, request_queue_t *q, +static int sg_io(struct file *file, struct request_queue *q, struct gendisk *bd_disk, struct sg_io_hdr *hdr) { unsigned long start_time; @@ -369,7 +363,7 @@ static int sg_io(struct file *file, request_queue_t *q, */ blk_execute_rq(q, bd_disk, rq, 0); - hdr->duration = ((jiffies - start_time) * 1000) / HZ; + hdr->duration = jiffies_to_msecs(jiffies - start_time); return blk_complete_sghdr_rq(rq, hdr, bio); out: @@ -436,11 +430,10 @@ int sg_scsi_ioctl(struct file *file, struct request_queue *q, bytes = max(in_len, out_len); if (bytes) { - buffer = kmalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN); + buffer = kzalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN); if (!buffer) return -ENOMEM; - memset(buffer, 0, bytes); } rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_WAIT); @@ -523,7 +516,8 @@ error: EXPORT_SYMBOL_GPL(sg_scsi_ioctl); /* Send basic block requests */ -static int __blk_send_generic(request_queue_t *q, struct gendisk *bd_disk, int cmd, int data) +static int __blk_send_generic(struct request_queue *q, struct gendisk *bd_disk, + int cmd, int data) { struct request *rq; int err; @@ -532,8 +526,8 @@ static int __blk_send_generic(request_queue_t *q, struct gendisk *bd_disk, int c rq->cmd_type = REQ_TYPE_BLOCK_PC; rq->data = NULL; rq->data_len = 0; + rq->extra_len = 0; rq->timeout = BLK_DEFAULT_SG_TIMEOUT; - memset(rq->cmd, 0, sizeof(rq->cmd)); rq->cmd[0] = cmd; rq->cmd[4] = data; rq->cmd_len = 6; @@ -543,21 +537,18 @@ static int __blk_send_generic(request_queue_t *q, struct gendisk *bd_disk, int c return err; } -static inline int blk_send_start_stop(request_queue_t *q, struct gendisk *bd_disk, int data) +static inline int blk_send_start_stop(struct request_queue *q, + struct gendisk *bd_disk, int data) { 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) {