diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/block/cciss.c | 88 | ||||
-rw-r--r-- | drivers/block/cciss.h | 4 | ||||
-rw-r--r-- | drivers/block/cciss_cmd.h | 3 | ||||
-rw-r--r-- | drivers/block/loop.c | 39 | ||||
-rw-r--r-- | drivers/block/nbd.c | 10 | ||||
-rw-r--r-- | drivers/block/virtio_blk.c | 2 | ||||
-rw-r--r-- | drivers/block/xen-blkfront.c | 8 | ||||
-rw-r--r-- | drivers/cdrom/cdrom.c | 703 | ||||
-rw-r--r-- | drivers/md/dm-crypt.c | 2 | ||||
-rw-r--r-- | drivers/md/dm-io.c | 2 | ||||
-rw-r--r-- | drivers/md/dm.c | 2 |
11 files changed, 491 insertions, 372 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 9f7c543cc04..01e69383d9c 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -164,7 +164,7 @@ static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo); static int cciss_revalidate(struct gendisk *disk); static int rebuild_lun_table(ctlr_info_t *h, int first_time); -static int deregister_disk(struct gendisk *disk, drive_info_struct *drv, +static int deregister_disk(ctlr_info_t *h, int drv_index, int clear_all); static void cciss_read_capacity(int ctlr, int logvol, int withirq, @@ -215,31 +215,17 @@ static struct block_device_operations cciss_fops = { /* * Enqueuing and dequeuing functions for cmdlists. */ -static inline void addQ(CommandList_struct **Qptr, CommandList_struct *c) +static inline void addQ(struct hlist_head *list, CommandList_struct *c) { - if (*Qptr == NULL) { - *Qptr = c; - c->next = c->prev = c; - } else { - c->prev = (*Qptr)->prev; - c->next = (*Qptr); - (*Qptr)->prev->next = c; - (*Qptr)->prev = c; - } + hlist_add_head(&c->list, list); } -static inline CommandList_struct *removeQ(CommandList_struct **Qptr, - CommandList_struct *c) +static inline void removeQ(CommandList_struct *c) { - if (c && c->next != c) { - if (*Qptr == c) - *Qptr = c->next; - c->prev->next = c->next; - c->next->prev = c->prev; - } else { - *Qptr = NULL; - } - return c; + if (WARN_ON(hlist_unhashed(&c->list))) + return; + + hlist_del_init(&c->list); } #include "cciss_scsi.c" /* For SCSI tape support */ @@ -506,6 +492,7 @@ static CommandList_struct *cmd_alloc(ctlr_info_t *h, int get_from_pool) c->cmdindex = i; } + INIT_HLIST_NODE(&c->list); c->busaddr = (__u32) cmd_dma_handle; temp64.val = (__u64) err_dma_handle; c->ErrDesc.Addr.lower = temp64.val32.lower; @@ -1492,8 +1479,7 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time) * which keeps the interrupt handler from starting * the queue. */ - ret = deregister_disk(h->gendisk[drv_index], - &h->drv[drv_index], 0); + ret = deregister_disk(h, drv_index, 0); h->drv[drv_index].busy_configuring = 0; } @@ -1711,8 +1697,7 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time) spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags); h->drv[i].busy_configuring = 1; spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); - return_code = deregister_disk(h->gendisk[i], - &h->drv[i], 1); + return_code = deregister_disk(h, i, 1); h->drv[i].busy_configuring = 0; } } @@ -1782,15 +1767,19 @@ mem_msg: * the highest_lun should be left unchanged and the LunID * should not be cleared. */ -static int deregister_disk(struct gendisk *disk, drive_info_struct *drv, +static int deregister_disk(ctlr_info_t *h, int drv_index, int clear_all) { int i; - ctlr_info_t *h = get_host(disk); + struct gendisk *disk; + drive_info_struct *drv; if (!capable(CAP_SYS_RAWIO)) return -EPERM; + drv = &h->drv[drv_index]; + disk = h->gendisk[drv_index]; + /* make sure logical volume is NOT is use */ if (clear_all || (h->gendisk[0] == disk)) { if (drv->usage_count > 1) @@ -2548,7 +2537,8 @@ static void start_io(ctlr_info_t *h) { CommandList_struct *c; - while ((c = h->reqQ) != NULL) { + while (!hlist_empty(&h->reqQ)) { + c = hlist_entry(h->reqQ.first, CommandList_struct, list); /* can't do anything if fifo is full */ if ((h->access.fifo_full(h))) { printk(KERN_WARNING "cciss: fifo full\n"); @@ -2556,14 +2546,14 @@ static void start_io(ctlr_info_t *h) } /* Get the first entry from the Request Q */ - removeQ(&(h->reqQ), c); + removeQ(c); h->Qdepth--; /* Tell the controller execute command */ h->access.submit_command(h, c); /* Put job onto the completed Q */ - addQ(&(h->cmpQ), c); + addQ(&h->cmpQ, c); } } @@ -2576,7 +2566,7 @@ static inline void resend_cciss_cmd(ctlr_info_t *h, CommandList_struct *c) memset(c->err_info, 0, sizeof(ErrorInfo_struct)); /* add it to software queue and then send it to the controller */ - addQ(&(h->reqQ), c); + addQ(&h->reqQ, c); h->Qdepth++; if (h->Qdepth > h->maxQsinceinit) h->maxQsinceinit = h->Qdepth; @@ -2897,7 +2887,7 @@ static void do_cciss_request(struct request_queue *q) spin_lock_irq(q->queue_lock); - addQ(&(h->reqQ), c); + addQ(&h->reqQ, c); h->Qdepth++; if (h->Qdepth > h->maxQsinceinit) h->maxQsinceinit = h->Qdepth; @@ -2985,16 +2975,12 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id) a = c->busaddr; } else { + struct hlist_node *tmp; + a &= ~3; - if ((c = h->cmpQ) == NULL) { - printk(KERN_WARNING - "cciss: Completion of %08x ignored\n", - a1); - continue; - } - while (c->busaddr != a) { - c = c->next; - if (c == h->cmpQ) + c = NULL; + hlist_for_each_entry(c, tmp, &h->cmpQ, list) { + if (c->busaddr == a) break; } } @@ -3002,8 +2988,8 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id) * If we've found the command, take it off the * completion Q and free it */ - if (c->busaddr == a) { - removeQ(&h->cmpQ, c); + if (c && c->busaddr == a) { + removeQ(c); if (c->cmd_type == CMD_RWREQ) { complete_command(h, c, 0); } else if (c->cmd_type == CMD_IOCTL_PEND) { @@ -3423,6 +3409,8 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, return -1; hba[i]->busy_initializing = 1; + INIT_HLIST_HEAD(&hba[i]->cmpQ); + INIT_HLIST_HEAD(&hba[i]->reqQ); if (cciss_pci_init(hba[i], pdev) != 0) goto clean1; @@ -3730,15 +3718,17 @@ static void fail_all_cmds(unsigned long ctlr) pci_disable_device(h->pdev); /* Make sure it is really dead. */ /* move everything off the request queue onto the completed queue */ - while ((c = h->reqQ) != NULL) { - removeQ(&(h->reqQ), c); + while (!hlist_empty(&h->reqQ)) { + c = hlist_entry(h->reqQ.first, CommandList_struct, list); + removeQ(c); h->Qdepth--; - addQ(&(h->cmpQ), c); + addQ(&h->cmpQ, c); } /* Now, fail everything on the completed queue with a HW error */ - while ((c = h->cmpQ) != NULL) { - removeQ(&h->cmpQ, c); + while (!hlist_empty(&h->cmpQ)) { + c = hlist_entry(h->cmpQ.first, CommandList_struct, list); + removeQ(c); c->err_info->CommandStatus = CMD_HARDWARE_ERR; if (c->cmd_type == CMD_RWREQ) { complete_command(h, c, 0); diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index 24a7efa993a..15e2b84734e 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -89,8 +89,8 @@ struct ctlr_info struct access_method access; /* queue and queue Info */ - CommandList_struct *reqQ; - CommandList_struct *cmpQ; + struct hlist_head reqQ; + struct hlist_head cmpQ; unsigned int Qdepth; unsigned int maxQsinceinit; unsigned int maxSG; diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h index 43bf5593b59..24e22dea1a9 100644 --- a/drivers/block/cciss_cmd.h +++ b/drivers/block/cciss_cmd.h @@ -265,8 +265,7 @@ typedef struct _CommandList_struct { int ctlr; int cmd_type; long cmdindex; - struct _CommandList_struct *prev; - struct _CommandList_struct *next; + struct hlist_node list; struct request * rq; struct completion *waiting; int retry_count; diff --git a/drivers/block/loop.c b/drivers/block/loop.c index fb06ed65921..edbaac6c057 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -624,20 +624,38 @@ static int loop_switch(struct loop_device *lo, struct file *file) } /* + * Helper to flush the IOs in loop, but keeping loop thread running + */ +static int loop_flush(struct loop_device *lo) +{ + /* loop not yet configured, no running thread, nothing to flush */ + if (!lo->lo_thread) + return 0; + + return loop_switch(lo, NULL); +} + +/* * Do the actual switch; called from the BIO completion routine */ static void do_loop_switch(struct loop_device *lo, struct switch_request *p) { struct file *file = p->file; struct file *old_file = lo->lo_backing_file; - struct address_space *mapping = file->f_mapping; + struct address_space *mapping; + + /* if no new file, only flush of queued bios requested */ + if (!file) + goto out; + mapping = file->f_mapping; mapping_set_gfp_mask(old_file->f_mapping, lo->old_gfp_mask); lo->lo_backing_file = file; lo->lo_blocksize = S_ISBLK(mapping->host->i_mode) ? mapping->host->i_bdev->bd_block_size : PAGE_SIZE; lo->old_gfp_mask = mapping_gfp_mask(mapping); mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS)); +out: complete(&p->wait); } @@ -901,6 +919,7 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev) kthread_stop(lo->lo_thread); + lo->lo_queue->unplug_fn = NULL; lo->lo_backing_file = NULL; loop_release_xfer(lo); @@ -1345,11 +1364,25 @@ static int lo_release(struct gendisk *disk, fmode_t mode) struct loop_device *lo = disk->private_data; mutex_lock(&lo->lo_ctl_mutex); - --lo->lo_refcnt; - if ((lo->lo_flags & LO_FLAGS_AUTOCLEAR) && !lo->lo_refcnt) + if (--lo->lo_refcnt) + goto out; + + if (lo->lo_flags & LO_FLAGS_AUTOCLEAR) { + /* + * In autoclear mode, stop the loop thread + * and remove configuration after last close. + */ loop_clr_fd(lo, NULL); + } else { + /* + * Otherwise keep thread (if running) and config, + * but flush possible ongoing bios in thread. + */ + loop_flush(lo); + } +out: mutex_unlock(&lo->lo_ctl_mutex); return 0; diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index d3a91cacee8..7bcc1d8bc96 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -722,7 +722,6 @@ static int __init nbd_init(void) for (i = 0; i < nbds_max; i++) { struct gendisk *disk = alloc_disk(1 << part_shift); - elevator_t *old_e; if (!disk) goto out; nbd_dev[i].disk = disk; @@ -736,11 +735,10 @@ static int __init nbd_init(void) put_disk(disk); goto out; } - old_e = disk->queue->elevator; - if (elevator_init(disk->queue, "deadline") == 0 || - elevator_init(disk->queue, "noop") == 0) { - elevator_exit(old_e); - } + /* + * Tell the block layer that we are not a rotational device + */ + queue_flag_set_unlocked(QUEUE_FLAG_NONROT, disk->queue); } if (register_blkdev(NBD_MAJOR, "nbd")) { diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 85d79a02d48..f151592ecf7 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -237,6 +237,8 @@ static int virtblk_probe(struct virtio_device *vdev) goto out_put_disk; } + queue_flag_set_unlocked(QUEUE_FLAG_VIRT, vblk->disk->queue); + if (index < 26) { sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26); } else if (index < (26 + 1) * 26) { diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 2d19f0cc47f..918ef725de4 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -338,18 +338,12 @@ wait: static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size) { struct request_queue *rq; - elevator_t *old_e; rq = blk_init_queue(do_blkif_request, &blkif_io_lock); if (rq == NULL) return -1; - old_e = rq->elevator; - if (IS_ERR_VALUE(elevator_init(rq, "noop"))) - printk(KERN_WARNING - "blkfront: Switch elevator failed, use default\n"); - else - elevator_exit(old_e); + queue_flag_set_unlocked(QUEUE_FLAG_VIRT, rq); /* Hard sector size and max sectors impersonate the equiv. hardware. */ blk_queue_hardsect_size(rq, sector_size); diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 7d2e91cccb1..cceace61ef2 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -1712,29 +1712,30 @@ static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai) return 0; } -static int dvd_read_physical(struct cdrom_device_info *cdi, dvd_struct *s) +static int dvd_read_physical(struct cdrom_device_info *cdi, dvd_struct *s, + struct packet_command *cgc) { unsigned char buf[21], *base; struct dvd_layer *layer; - struct packet_command cgc; struct cdrom_device_ops *cdo = cdi->ops; int ret, layer_num = s->physical.layer_num; if (layer_num >= DVD_LAYERS) return -EINVAL; - init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ); - cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE; - cgc.cmd[6] = layer_num; - cgc.cmd[7] = s->type; - cgc.cmd[9] = cgc.buflen & 0xff; + init_cdrom_command(cgc, buf, sizeof(buf), CGC_DATA_READ); + cgc->cmd[0] = GPCMD_READ_DVD_STRUCTURE; + cgc->cmd[6] = layer_num; + cgc->cmd[7] = s->type; + cgc->cmd[9] = cgc->buflen & 0xff; /* * refrain from reporting errors on non-existing layers (mainly) */ - cgc.quiet = 1; + cgc->quiet = 1; - if ((ret = cdo->generic_packet(cdi, &cgc))) + ret = cdo->generic_packet(cdi, cgc); + if (ret) return ret; base = &buf[4]; @@ -1762,21 +1763,22 @@ static int dvd_read_physical(struct cdrom_device_info *cdi, dvd_struct *s) return 0; } -static int dvd_read_copyright(struct cdrom_device_info *cdi, dvd_struct *s) +static int dvd_read_copyright(struct cdrom_device_info *cdi, dvd_struct *s, + struct packet_command *cgc) { int ret; u_char buf[8]; - struct packet_command cgc; struct cdrom_device_ops *cdo = cdi->ops; - init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ); - cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE; - cgc.cmd[6] = s->copyright.layer_num; - cgc.cmd[7] = s->type; - cgc.cmd[8] = cgc.buflen >> 8; - cgc.cmd[9] = cgc.buflen & 0xff; + init_cdrom_command(cgc, buf, sizeof(buf), CGC_DATA_READ); + cgc->cmd[0] = GPCMD_READ_DVD_STRUCTURE; + cgc->cmd[6] = s->copyright.layer_num; + cgc->cmd[7] = s->type; + cgc->cmd[8] = cgc->buflen >> 8; + cgc->cmd[9] = cgc->buflen & 0xff; - if ((ret = cdo->generic_packet(cdi, &cgc))) + ret = cdo->generic_packet(cdi, cgc); + if (ret) return ret; s->copyright.cpst = buf[4]; @@ -1785,79 +1787,89 @@ static int dvd_read_copyright(struct cdrom_device_info *cdi, dvd_struct *s) return 0; } -static int dvd_read_disckey(struct cdrom_device_info *cdi, dvd_struct *s) +static int dvd_read_disckey(struct cdrom_device_info *cdi, dvd_struct *s, + struct packet_command *cgc) { int ret, size; u_char *buf; - struct packet_command cgc; struct cdrom_device_ops *cdo = cdi->ops; size = sizeof(s->disckey.value) + 4; - if ((buf = kmalloc(size, GFP_KERNEL)) == NULL) + buf = kmalloc(size, GFP_KERNEL); + if (!buf) return -ENOMEM; - init_cdrom_command(&cgc, buf, size, CGC_DATA_READ); - cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE; - cgc.cmd[7] = s->type; - cgc.cmd[8] = size >> 8; - cgc.cmd[9] = size & 0xff; - cgc.cmd[10] = s->disckey.agid << 6; + init_cdrom_command(cgc, buf, size, CGC_DATA_READ); + cgc->cmd[0] = GPCMD_READ_DVD_STRUCTURE; + cgc->cmd[7] = s->type; + cgc->cmd[8] = size >> 8; + cgc->cmd[9] = size & 0xff; + cgc->cmd[10] = s->disckey.agid << 6; - if (!(ret = cdo->generic_packet(cdi, &cgc))) + ret = cdo->generic_packet(cdi, cgc); + if (!ret) memcpy(s->disckey.value, &buf[4], sizeof(s->disckey.value)); kfree(buf); return ret; } -static int dvd_read_bca(struct cdrom_device_info *cdi, dvd_struct *s) +static int dvd_read_bca(struct cdrom_device_info *cdi, dvd_struct *s, + struct packet_command *cgc) { - int ret; - u_char buf[4 + 188]; - struct packet_command cgc; + int ret, size = 4 + 188; + u_char *buf; struct cdrom_device_ops *cdo = cdi->ops; - init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ); - cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE; - cgc.cmd[7] = s->type; - cgc.cmd[9] = cgc.buflen & 0xff; + buf = kmalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; - if ((ret = cdo->generic_packet(cdi, &cgc))) - return ret; + init_cdrom_command(cgc, buf, size, CGC_DATA_READ); + cgc->cmd[0] = GPCMD_READ_DVD_STRUCTURE; + cgc->cmd[7] = s->type; + cgc->cmd[9] = cgc->buflen & 0xff; + + ret = cdo->generic_packet(cdi, cgc); + if (ret) + goto out; s->bca.len = buf[0] << 8 | buf[1]; if (s->bca.len < 12 || s->bca.len > 188) { cdinfo(CD_WARNING, "Received invalid BCA length (%d)\n", s->bca.len); - return -EIO; + ret = -EIO; + goto out; } memcpy(s->bca.value, &buf[4], s->bca.len); - - return 0; + ret = 0; +out: + kfree(buf); + return ret; } -static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s) +static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s, + struct packet_command *cgc) { int ret = 0, size; u_char *buf; - struct packet_command cgc; struct cdrom_device_ops *cdo = cdi->ops; size = sizeof(s->manufact.value) + 4; - if ((buf = kmalloc(size, GFP_KERNEL)) == NULL) + buf = kmalloc(size, GFP_KERNEL); + if (!buf) return -ENOMEM; - init_cdrom_command(&cgc, buf, size, CGC_DATA_READ); - cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE; - cgc.cmd[7] = s->type; - cgc.cmd[8] = size >> 8; - cgc.cmd[9] = size & 0xff; + init_cdrom_command(cgc, buf, size, CGC_DATA_READ); + cgc->cmd[0] = GPCMD_READ_DVD_STRUCTURE; + cgc->cmd[7] = s->type; + cgc->cmd[8] = size >> 8; + cgc->cmd[9] = size & 0xff; - if ((ret = cdo->generic_packet(cdi, &cgc))) { - kfree(buf); - return ret; - } + ret = cdo->generic_packet(cdi, cgc); + if (ret) + goto out; s->manufact.len = buf[0] << 8 | buf[1]; if (s->manufact.len < 0 || s->manufact.len > 2048) { @@ -1868,27 +1880,29 @@ static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s) memcpy(s->manufact.value, &buf[4], s->manufact.len); } +out: kfree(buf); return ret; } -static int dvd_read_struct(struct cdrom_device_info *cdi, dvd_struct *s) +static int dvd_read_struct(struct cdrom_device_info *cdi, dvd_struct *s, + struct packet_command *cgc) { switch (s->type) { case DVD_STRUCT_PHYSICAL: - return dvd_read_physical(cdi, s); + return dvd_read_physical(cdi, s, cgc); case DVD_STRUCT_COPYRIGHT: - return dvd_read_copyright(cdi, s); + return dvd_read_copyright(cdi, s, cgc); case DVD_STRUCT_DISCKEY: - return dvd_read_disckey(cdi, s); + return dvd_read_disckey(cdi, s, cgc); case DVD_STRUCT_BCA: - return dvd_read_bca(cdi, s); + return dvd_read_bca(cdi, s, cgc); case DVD_STRUCT_MANUFACT: - return dvd_read_manufact(cdi, s); + return dvd_read_manufact(cdi, s, cgc); default: cdinfo(CD_WARNING, ": Invalid DVD structure read requested (%d)\n", @@ -2787,271 +2801,360 @@ static int cdrom_switch_blocksize(struct cdrom_device_info *cdi, int size) return cdo->generic_packet(cdi, &cgc); } -static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd, - unsigned long arg) -{ - struct cdrom_device_ops *cdo = cdi->ops; - struct packet_command cgc; +static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi, + void __user *arg, + struct packet_command *cgc, + int cmd) +{ struct request_sense sense; - unsigned char buffer[32]; - int ret = 0; - - memset(&cgc, 0, sizeof(cgc)); + struct cdrom_msf msf; + int blocksize = 0, format = 0, lba; + int ret; - /* build a unified command and queue it through - cdo->generic_packet() */ switch (cmd) { case CDROMREADRAW: + blocksize = CD_FRAMESIZE_RAW; + break; case CDROMREADMODE1: - case CDROMREADMODE2: { - struct cdrom_msf msf; - int blocksize = 0, format = 0, lba; - - switch (cmd) { - case CDROMREADRAW: - blocksize = CD_FRAMESIZE_RAW; - break; - case CDROMREADMODE1: - blocksize = CD_FRAMESIZE; - format = 2; - break; - case CDROMREADMODE2: - blocksize = CD_FRAMESIZE_RAW0; - break; - } - IOCTL_IN(arg, struct cdrom_msf, msf); - lba = msf_to_lba(msf.cdmsf_min0,msf.cdmsf_sec0,msf.cdmsf_frame0); - /* FIXME: we need upper bound checking, too!! */ - if (lba < 0) - return -EINVAL; - cgc.buffer = kmalloc(blocksize, GFP_KERNEL); - if (cgc.buffer == NULL) - return -ENOMEM; - memset(&sense, 0, sizeof(sense)); - cgc.sense = &sense; - cgc.data_direction = CGC_DATA_READ; - ret = cdrom_read_block(cdi, &cgc, lba, 1, format, blocksize); - if (ret && sense.sense_key==0x05 && sense.asc==0x20 && sense.ascq==0x00) { - /* - * SCSI-II devices are not required to support - * READ_CD, so let's try switching block size - */ - /* FIXME: switch back again... */ - if ((ret = cdrom_switch_blocksize(cdi, blocksize))) { - kfree(cgc.buffer); - return ret; - } - cgc.sense = NULL; - ret = cdrom_read_cd(cdi, &cgc, lba, blocksize, 1); - ret |= cdrom_switch_blocksize(cdi, blocksize); - } - if (!ret && copy_to_user((char __user *)arg, cgc.buffer, blocksize)) - ret = -EFAULT; - kfree(cgc.buffer); + blocksize = CD_FRAMESIZE; + format = 2; + break; + case CDROMREADMODE2: + blocksize = CD_FRAMESIZE_RAW0; + break; + } + IOCTL_IN(arg, struct cdrom_msf, msf); + lba = msf_to_lba(msf.cdmsf_min0, msf.cdmsf_sec0, msf.cdmsf_frame0); + /* FIXME: we need upper bound checking, too!! */ + if (lba < 0) + return -EINVAL; + + cgc->buffer = kmalloc(blocksize, GFP_KERNEL); + if (cgc->buffer == NULL) + return -ENOMEM; + + memset(&sense, 0, sizeof(sense)); + cgc->sense = &sense; + cgc->data_direction = CGC_DATA_READ; + ret = cdrom_read_block(cdi, cgc, lba, 1, format, blocksize); + if (ret && sense.sense_key == 0x05 && + sense.asc == 0x20 && + sense.ascq == 0x00) { + /* + * SCSI-II devices are not required to support + * READ_CD, so let's try switching block size + */ + /* FIXME: switch back again... */ + ret = cdrom_switch_blocksize(cdi, blocksize); + if (ret) + goto out; + cgc->sense = NULL; + ret = cdrom_read_cd(cdi, cgc, lba, blocksize, 1); + ret |= cdrom_switch_blocksize(cdi, blocksize); + } + if (!ret && copy_to_user(arg, cgc->buffer, blocksize)) + ret = -EFAULT; +out: + kfree(cgc->buffer); + return ret; +} + +static noinline int mmc_ioctl_cdrom_read_audio(struct cdrom_device_info *cdi, + void __user *arg) +{ + struct cdrom_read_audio ra; + int lba; + + IOCTL_IN(arg, struct cdrom_read_audio, ra); + + if (ra.addr_format == CDROM_MSF) + lba = msf_to_lba(ra.addr.msf.minute, + ra.addr.msf.second, + ra.addr.msf.frame); + else if (ra.addr_format == CDROM_LBA) + lba = ra.addr.lba; + else + return -EINVAL; + + /* FIXME: we need upper bound checking, too!! */ + if (lba < 0 || ra.nframes <= 0 || ra.nframes > CD_FRAMES) + return -EINVAL; + + return cdrom_read_cdda(cdi, ra.buf, lba, ra.nframes); +} + +static noinline int mmc_ioctl_cdrom_subchannel(struct cdrom_device_info *cdi, + void __user *arg) +{ + int ret; + struct cdrom_subchnl q; + u_char requested, back; + IOCTL_IN(arg, struct cdrom_subchnl, q); + requested = q.cdsc_format; + if (!((requested == CDROM_MSF) || + (requested == CDROM_LBA))) + return -EINVAL; + q.cdsc_format = CDROM_MSF; + ret = cdrom_read_subchannel(cdi, &q, 0); + if (ret) return ret; - } - case CDROMREADAUDIO: { - struct cdrom_read_audio ra; - int lba; - - IOCTL_IN(arg, struct cdrom_read_audio, ra); - - if (ra.addr_format == CDROM_MSF) - lba = msf_to_lba(ra.addr.msf.minute, - ra.addr.msf.second, - ra.addr.msf.frame); - else if (ra.addr_format == CDROM_LBA) - lba = ra.addr.lba; - else - return -EINVAL; + back = q.cdsc_format; /* local copy */ + sanitize_format(&q.cdsc_absaddr, &back, requested); + sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested); + IOCTL_OUT(arg, struct cdrom_subchnl, q); + /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */ + return 0; +} - /* FIXME: we need upper bound checking, too!! */ - if (lba < 0 || ra.nframes <= 0 || ra.nframes > CD_FRAMES) - return -EINVAL; +static noinline int mmc_ioctl_cdrom_play_msf(struct cdrom_device_info *cdi, + void __user *arg, + struct packet_command *cgc) +{ + struct cdrom_device_ops *cdo = cdi->ops; + struct cdrom_msf msf; + cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n"); + IOCTL_IN(arg, struct cdrom_msf, msf); + cgc->cmd[0] = GPCMD_PLAY_AUDIO_MSF; + cgc->cmd[3] = msf.cdmsf_min0; + cgc->cmd[4] = msf.cdmsf_sec0; + cgc->cmd[5] = msf.cdmsf_frame0; + cgc->cmd[6] = msf.cdmsf_min1; + cgc->cmd[7] = msf.cdmsf_sec1; + cgc->cmd[8] = msf.cdmsf_frame1; + cgc->data_direction = CGC_DATA_NONE; + return cdo->generic_packet(cdi, cgc); +} - return cdrom_read_cdda(cdi, ra.buf, lba, ra.nframes); - } - case CDROMSUBCHNL: { - struct cdrom_subchnl q; - u_char requested, back; - IOCTL_IN(arg, struct cdrom_subchnl, q); - requested = q.cdsc_format; - if (!((requested == CDROM_MSF) || - (requested == CDROM_LBA))) - return -EINVAL; - q.cdsc_format = CDROM_MSF; - if ((ret = cdrom_read_subchannel(cdi, &q, 0))) - return ret; - back = q.cdsc_format; /* local copy */ - sanitize_format(&q.cdsc_absaddr, &back, requested); - sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested); - IOCTL_OUT(arg, struct cdrom_subchnl, q); - /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */ - return 0; - } - case CDROMPLAYMSF: { - struct cdrom_msf msf; - cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n"); - IOCTL_IN(arg, struct cdrom_msf, msf); - cgc.cmd[0] = GPCMD_PLAY_AUDIO_MSF; - cgc.cmd[3] = msf.cdmsf_min0; - cgc.cmd[4] = msf.cdmsf_sec0; - cgc.cmd[5] = msf.cdmsf_frame0; - cgc.cmd[6] = msf.cdmsf_min1; - cgc.cmd[7] = msf.cdmsf_sec1; - cgc.cmd[8] = msf.cdmsf_frame1; - cgc.data_direction = CGC_DATA_NONE; - return cdo->generic_packet(cdi, &cgc); - } - case CDROMPLAYBLK: { - struct cdrom_blk blk; - cdinfo(CD_DO_IOCTL, "entering CDROMPLAYBLK\n"); - IOCTL_IN(arg, struct cdrom_blk, blk); - cgc.cmd[0] = GPCMD_PLAY_AUDIO_10; - cgc.cmd[2] = (blk.from >> 24) & 0xff; - cgc.cmd[3] = (blk.from >> 16) & 0xff; - cgc.cmd[4] = (blk.from >> 8) & 0xff; - cgc.cmd[5] = blk.from & 0xff; - cgc.cmd[7] = (blk.len >> 8) & 0xff; - cgc.cmd[8] = blk.len & 0xff; - cgc.data_direction = CGC_DATA_NONE; - return cdo->generic_packet(cdi, &cgc); - } - case CDROMVOLCTRL: - case CDROMVOLREAD: { - struct cdrom_volctrl volctrl; - char mask[sizeof(buffer)]; - unsigned short offset; +static noinline int mmc_ioctl_cdrom_play_blk(struct cdrom_device_info *cdi, + void __user *arg, + struct packet_command *cgc) +{ + struct cdrom_device_ops *cdo = cdi->ops; + struct cdrom_blk blk; + cdinfo(CD_DO_IOCTL, "entering CDROMPLAYBLK\n"); + IOCTL_IN(arg, struct cdrom_blk, blk); + cgc->cmd[0] = GPCMD_PLAY_AUDIO_10; + cgc->cmd[2] = (blk.from >> 24) & 0xff; + cgc->cmd[3] = (blk.from >> 16) & 0xff; + cgc->cmd[4] = (blk.from >> 8) & 0xff; + cgc->cmd[5] = blk.from & 0xff; + cgc->cmd[7] = (blk.len >> 8) & 0xff; + cgc->cmd[8] = blk.len & 0xff; + cgc->data_direction = CGC_DATA_NONE; + return cdo->generic_packet(cdi, cgc); +} + +static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, + void __user *arg, + struct packet_command *cgc, + unsigned int cmd) +{ + struct cdrom_volctrl volctrl; + unsigned char buffer[32]; + char mask[sizeof(buffer)]; + unsigned short offset; + int ret; - cdinfo(CD_DO_IOCTL, "entering CDROMVOLUME\n"); + cdinfo(CD_DO_IOCTL, "entering CDROMVOLUME\n"); - IOCTL_IN(arg, struct cdrom_volctrl, volctrl); + IOCTL_IN(arg, struct cdrom_volctrl, volctrl); - cgc.buffer = buffer; - cgc.buflen = 24; - if ((ret = cdrom_mode_sense(cdi, &cgc, GPMODE_AUDIO_CTL_PAGE, 0))) - return ret; + cgc->buffer = buffer; + cgc->buflen = 24; + ret = cdrom_mode_sense(cdi, cgc, GPMODE_AUDIO_CTL_PAGE, 0); + if (ret) + return ret; - /* originally the code depended on buffer[1] to determine - how much data is available for transfer. buffer[1] is - unfortunately ambigious and the only reliable way seem - to be to simply skip over the block descriptor... */ - offset = 8 + be16_to_cpu(*(__be16 *)(buffer+6)); - - if (offset + 16 > sizeof(buffer)) - return -E2BIG; - - if (offset + 16 > cgc.buflen) { - cgc.buflen = offset+16; - ret = cdrom_mode_sense(cdi, &cgc, - GPMODE_AUDIO_CTL_PAGE, 0); - if (ret) - return ret; - } + /* originally the code depended on buffer[1] to determine + how much data is available for transfer. buffer[1] is + unfortunately ambigious and the only reliable way seem + to be to simply skip over the block descriptor... */ + offset = 8 + be16_to_cpu(*(__be16 *)(buffer + 6)); + + if (offset + 16 > sizeof(buffer)) + return -E2BIG; + + if (offset + 16 > cgc->buflen) { + cgc->buflen = offset + 16; + ret = cdrom_mode_sense(cdi, cgc, + GPMODE_AUDIO_CTL_PAGE, 0); + if (ret) + return ret; + } - /* sanity check */ - if ((buffer[offset] & 0x3f) != GPMODE_AUDIO_CTL_PAGE || - buffer[offset+1] < 14) - return -EINVAL; + /* sanity check */ + if ((buffer[offset] & 0x3f) != GPMODE_AUDIO_CTL_PAGE || + buffer[offset + 1] < 14) + return -EINVAL; - /* now we have the current volume settings. if it was only - a CDROMVOLREAD, return these values */ - if (cmd == CDROMVOLREAD) { - volctrl.channel0 = buffer[offset+9]; - volctrl.channel1 = buffer[offset+11]; - volctrl.channel2 = buffer[offset+13]; - volctrl.channel3 = buffer[offset+15]; - IOCTL_OUT(arg, struct cdrom_volctrl, volctrl); - return 0; - } + /* now we have the current volume settings. if it was only + a CDROMVOLREAD, return these values */ + if (cmd == CDROMVOLREAD) { + volctrl.channel0 = buffer[offset+9]; + volctrl.channel1 = buffer[offset+11]; + volctrl.channel2 = buffer[offset+13]; + volctrl.channel3 = buffer[offset+15]; + IOCTL_OUT(arg, struct cdrom_volctrl, volctrl); + return 0; + } - /* get the volume mask */ - cgc.buffer = mask; - if ((ret = cdrom_mode_sense(cdi, &cgc, - GPMODE_AUDIO_CTL_PAGE, 1))) - return ret; + /* get the volume mask */ + cgc->buffer = mask; + ret = cdrom_mode_sense(cdi, cgc, GPMODE_AUDIO_CTL_PAGE, 1); + if (ret) + return ret; - buffer[offset+9] = volctrl.channel0 & mask[offset+9]; - buffer[offset+11] = volctrl.channel1 & mask[offset+11]; - buffer[offset+13] = volctrl.channel2 & mask[offset+13]; - buffer[offset+15] = volctrl.channel3 & mask[offset+15]; + buffer[offset + 9] = volctrl.channel0 & mask[offset + 9]; + buffer[offset + 11] = volctrl.channel1 & mask[offset + 11]; + buffer[offset + 13] = volctrl.channel2 & mask[offset + 13]; + buffer[offset + 15] = volctrl.channel3 & mask[offset + 15]; - /* set volume */ - cgc.buffer = buffer + offset - 8; - memset(cgc.buffer, 0, 8); - return cdrom_mode_select(cdi, &cgc); - } + /* set volume */ + cgc->buffer = buffer + offset - 8; + memset(cgc->buffer, 0, 8); + return cdrom_mode_select(cdi, cgc); +} - case CDROMSTART: - case CDROMSTOP: { - cdinfo(CD_DO_IOCTL, "entering CDROMSTART/CDROMSTOP\n"); - cgc.cmd[0] = GPCMD_START_STOP_UNIT; - cgc.cmd[1] = 1; - cgc.cmd[4] = (cmd == CDROMSTART) ? 1 : 0; - cgc.data_direction = CGC_DATA_NONE; - return cdo->generic_packet(cdi, &cgc); - } +static noinline int mmc_ioctl_cdrom_start_stop(struct cdrom_device_info *cdi, + struct packet_command *cgc, + int cmd) +{ + struct cdrom_device_ops *cdo = cdi->ops; + cdinfo(CD_DO_IOCTL, "entering CDROMSTART/CDROMSTOP\n"); + cgc->cmd[0] = GPCMD_START_STOP_UNIT; + cgc->cmd[1] = 1; + cgc->cmd[4] = (cmd == CDROMSTART) ? 1 : 0; + cgc->data_direction = CGC_DATA_NONE; + return cdo->generic_packet(cdi, cgc); +} - case CDROMPAUSE: - case CDROMRESUME: { - cdinfo(CD_DO_IOCTL, "entering CDROMPAUSE/CDROMRESUME\n"); - cgc.cmd[0] = GPCMD_PAUSE_RESUME; - cgc.cmd[8] = (cmd == CDROMRESUME) ? 1 : 0; - cgc.data_direction = CGC_DATA_NONE; - return cdo->generic_packet(cdi, &cgc); - } +static noinline int mmc_ioctl_cdrom_pause_resume(struct cdrom_device_info *cdi, + struct packet_command *cgc, + int cmd) +{ + struct cdrom_device_ops *cdo = cdi->ops; + cdinfo(CD_DO_IOCTL, "entering CDROMPAUSE/CDROMRESUME\n"); + cgc->cmd[0] = GPCMD_PAUSE_RESUME; + cgc->cmd[8] = (cmd == CDROMRESUME) ? 1 : 0; + cgc->data_direction = CGC_DATA_NONE; + return cdo->generic_packet(cdi, cgc); +} - case DVD_READ_STRUCT: { - dvd_struct *s; - int size = sizeof(dvd_struct); - if (!CDROM_CAN(CDC_DVD)) - return -ENOSYS; - if ((s = kmalloc(size, GFP_KERNEL)) == NULL) - return -ENOMEM; - cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); - if (copy_from_user(s, (dvd_struct __user *)arg, size)) { - kfree(s); - return -EFAULT; - } - if ((ret = dvd_read_struct(cdi, s))) { - kfree(s); - return ret; - } - if (copy_to_user((dvd_struct __user *)arg, s, size)) - ret = -EFAULT; +static noinline int mmc_ioctl_dvd_read_struct(struct cdrom_device_info *cdi, + void __user *arg, + struct packet_command *cgc) +{ + int ret; + dvd_struct *s; + int size = sizeof(dvd_struct); + + if (!CDROM_CAN(CDC_DVD)) + return -ENOSYS; + + s = kmalloc(size, GFP_KERNEL); + if (!s) + return -ENOMEM; + + cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); + if (copy_from_user(s, arg, size)) { kfree(s); + return -EFAULT; + } + + ret = dvd_read_struct(cdi, s, cgc); + if (ret) + goto out; + + if (copy_to_user(arg, s, size)) + ret = -EFAULT; +out: + kfree(s); + return ret; +} + +static noinline int mmc_ioctl_dvd_auth(struct cdrom_device_info *cdi, + void __user *arg) +{ + int ret; + dvd_authinfo ai; + if (!CDROM_CAN(CDC_DVD)) + return -ENOSYS; + cdinfo(CD_DO_IOCTL, "entering DVD_AUTH\n"); + IOCTL_IN(arg, dvd_authinfo, ai); + ret = dvd_do_auth(cdi, &ai); + if (ret) return ret; - } + IOCTL_OUT(arg, dvd_authinfo, ai); + return 0; +} - case DVD_AUTH: { - dvd_authinfo ai; - if (!CDROM_CAN(CDC_DVD)) - return -ENOSYS; - cdinfo(CD_DO_IOCTL, "entering DVD_AUTH\n"); - IOCTL_IN(arg, dvd_authinfo, ai); - if ((ret = dvd_do_auth (cdi, &ai))) - return ret; - IOCTL_OUT(arg, dvd_authinfo, ai); - return 0; - } +static noinline int mmc_ioctl_cdrom_next_writable(struct cdrom_device_info *cdi, + void __user *arg) +{ + int ret; + long next = 0; + cdinfo(CD_DO_IOCTL, "entering CDROM_NEXT_WRITABLE\n"); + ret = cdrom_get_next_writable(cdi, &next); + if (ret) + return ret; + IOCTL_OUT(arg, long, next); + return 0; +} - case CDROM_NEXT_WRITABLE: { - long next = 0; - cdinfo(CD_DO_IOCTL, "entering CDROM_NEXT_WRITABLE\n"); - if ((ret = cdrom_get_next_writable(cdi, &next))) - return ret; - IOCTL_OUT(arg, long, next); - return 0; - } - case CDROM_LAST_WRITTEN: { - long last = 0; - cdinfo(CD_DO_IOCTL, "entering CDROM_LAST_WRITTEN\n"); - if ((ret = cdrom_get_last_written(cdi, &last))) - return ret; - IOCTL_OUT(arg, long, last); - return 0; - } - } /* switch */ +static noinline int mmc_ioctl_cdrom_last_written(struct cdrom_device_info *cdi, + void __user *arg) +{ + int ret; + long last = 0; + cdinfo(CD_DO_IOCTL, "entering CDROM_LAST_WRITTEN\n"); + ret = cdrom_get_last_written(cdi, &last); + if (ret) + return ret; + IOCTL_OUT(arg, long, last); + return 0; +} + +static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd, + unsigned long arg) +{ + struct packet_command cgc; + void __user *userptr = (void __user *)arg; + + memset(&cgc, 0, sizeof(cgc)); + + /* build a unified command and queue it through + cdo->generic_packet() */ + switch (cmd) { + case CDROMREADRAW: + case CDROMREADMODE1: + case CDROMREADMODE2: + return mmc_ioctl_cdrom_read_data(cdi, userptr, &cgc, cmd); + case CDROMREADAUDIO: + return mmc_ioctl_cdrom_read_audio(cdi, userptr); + case CDROMSUBCHNL: + return mmc_ioctl_cdrom_subchannel(cdi, userptr); + case CDROMPLAYMSF: + return mmc_ioctl_cdrom_play_msf(cdi, userptr, &cgc); + case CDROMPLAYBLK: + return mmc_ioctl_cdrom_play_blk(cdi, userptr, &cgc); + case CDROMVOLCTRL: + case CDROMVOLREAD: + return mmc_ioctl_cdrom_volume(cdi, userptr, &cgc, cmd); + case CDROMSTART: + case CDROMSTOP: + return mmc_ioctl_cdrom_start_stop(cdi, &cgc, cmd); + case CDROMPAUSE: + case CDROMRESUME: + return mmc_ioctl_cdrom_pause_resume(cdi, &cgc, cmd); + case DVD_READ_STRUCT: + return mmc_ioctl_dvd_read_struct(cdi, userptr, &cgc); + case DVD_AUTH: + return mmc_ioctl_dvd_auth(cdi, userptr); + case CDROM_NEXT_WRITABLE: + return mmc_ioctl_cdrom_next_writable(cdi, userptr); + case CDROM_LAST_WRITTEN: + return mmc_ioctl_cdrom_last_written(cdi, userptr); + } return -ENOTTY; } diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index ce26c84af06..3326750ec02 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -1060,7 +1060,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad_page_pool; } - cc->bs = bioset_create(MIN_IOS, MIN_IOS); + cc->bs = bioset_create(MIN_IOS, 0); if (!cc->bs) { ti->error = "Cannot allocate crypt bioset"; goto bad_bs; diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 2fd6d445063..a34338567a2 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -56,7 +56,7 @@ struct dm_io_client *dm_io_client_create(unsigned num_pages) if (!client->pool) goto bad; - client->bios = bioset_create(16, 16); + client->bios = bioset_create(16, 0); if (!client->bios) goto bad; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 343094c3fee..421c9f02d8c 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1093,7 +1093,7 @@ static struct mapped_device *alloc_dev(int minor) if (!md->tio_pool) goto bad_tio_pool; - md->bs = bioset_create(16, 16); + md->bs = bioset_create(16, 0); if (!md->bs) goto bad_no_bioset; |