diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/block/aoe/aoechr.c | 2 | ||||
| -rw-r--r-- | drivers/block/cciss.c | 86 | ||||
| -rw-r--r-- | drivers/block/cpqarray.c | 2 | ||||
| -rw-r--r-- | drivers/block/nbd.c | 19 | ||||
| -rw-r--r-- | drivers/block/pktcdvd.c | 6 | ||||
| -rw-r--r-- | drivers/block/rd.c | 2 |
7 files changed, 71 insertions, 56 deletions
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 93d94749310b..b5382cedf0c0 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -400,6 +400,16 @@ config BLK_DEV_RAM_SIZE what are you doing. If you are using IBM S/390, then set this to 8192. +config BLK_DEV_RAM_BLOCKSIZE + int "Default RAM disk block size (bytes)" + depends on BLK_DEV_RAM + default "1024" + help + The default value is 1024 kilobytes. PAGE_SIZE is a much more + efficient choice however. The default is kept to ensure initrd + setups function - apparently needed by the rd_load_image routine + that supposes the filesystem in the image uses a 1024 blocksize. + config BLK_DEV_INITRD bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support" depends on BROKEN || !FRV diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index 5327f553b4f5..1bc1cf9603f1 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -162,7 +162,7 @@ aoechr_open(struct inode *inode, struct file *filp) { int n, i; - n = MINOR(inode->i_rdev); + n = iminor(inode); filp->private_data = (void *) (unsigned long) n; for (i = 0; i < ARRAY_SIZE(chardevs); ++i) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 1c4df22dfd2a..7b0eca703a67 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1233,6 +1233,50 @@ static inline void complete_buffers(struct bio *bio, int status) } } +static void cciss_check_queues(ctlr_info_t *h) +{ + int start_queue = h->next_to_run; + int i; + + /* check to see if we have maxed out the number of commands that can + * be placed on the queue. If so then exit. We do this check here + * in case the interrupt we serviced was from an ioctl and did not + * free any new commands. + */ + if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS) + return; + + /* We have room on the queue for more commands. Now we need to queue + * them up. We will also keep track of the next queue to run so + * that every queue gets a chance to be started first. + */ + for (i = 0; i < h->highest_lun + 1; i++) { + int curr_queue = (start_queue + i) % (h->highest_lun + 1); + /* make sure the disk has been added and the drive is real + * because this can be called from the middle of init_one. + */ + if (!(h->drv[curr_queue].queue) || !(h->drv[curr_queue].heads)) + continue; + blk_start_queue(h->gendisk[curr_queue]->queue); + + /* check to see if we have maxed out the number of commands + * that can be placed on the queue. + */ + if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS) { + if (curr_queue == start_queue) { + h->next_to_run = + (start_queue + 1) % (h->highest_lun + 1); + break; + } else { + h->next_to_run = curr_queue; + break; + } + } else { + curr_queue = (curr_queue + 1) % (h->highest_lun + 1); + } + } +} + static void cciss_softirq_done(struct request *rq) { CommandList_struct *cmd = rq->completion_data; @@ -1264,6 +1308,7 @@ static void cciss_softirq_done(struct request *rq) spin_lock_irqsave(&h->lock, flags); end_that_request_last(rq, rq->errors); cmd_free(h, cmd, 1); + cciss_check_queues(h); spin_unlock_irqrestore(&h->lock, flags); } @@ -2528,8 +2573,6 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id, struct pt_regs *regs) CommandList_struct *c; unsigned long flags; __u32 a, a1, a2; - int j; - int start_queue = h->next_to_run; if (interrupt_not_for_us(h)) return IRQ_NONE; @@ -2588,45 +2631,6 @@ static irqreturn_t do_cciss_intr(int irq, void *dev_id, struct pt_regs *regs) } } - /* check to see if we have maxed out the number of commands that can - * be placed on the queue. If so then exit. We do this check here - * in case the interrupt we serviced was from an ioctl and did not - * free any new commands. - */ - if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS) - goto cleanup; - - /* We have room on the queue for more commands. Now we need to queue - * them up. We will also keep track of the next queue to run so - * that every queue gets a chance to be started first. - */ - for (j = 0; j < h->highest_lun + 1; j++) { - int curr_queue = (start_queue + j) % (h->highest_lun + 1); - /* make sure the disk has been added and the drive is real - * because this can be called from the middle of init_one. - */ - if (!(h->drv[curr_queue].queue) || !(h->drv[curr_queue].heads)) - continue; - blk_start_queue(h->gendisk[curr_queue]->queue); - - /* check to see if we have maxed out the number of commands - * that can be placed on the queue. - */ - if ((find_first_zero_bit(h->cmd_pool_bits, NR_CMDS)) == NR_CMDS) { - if (curr_queue == start_queue) { - h->next_to_run = - (start_queue + 1) % (h->highest_lun + 1); - goto cleanup; - } else { - h->next_to_run = curr_queue; - goto cleanup; - } - } else { - curr_queue = (curr_queue + 1) % (h->highest_lun + 1); - } - } - - cleanup: spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags); return IRQ_HANDLED; } diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index 757f42dd8e86..78082edc14b4 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -1739,8 +1739,6 @@ static void getgeometry(int ctlr) (log_index < id_ctlr_buf->nr_drvs) && (log_unit < NWD); log_unit++) { - struct gendisk *disk = ida_gendisk[ctlr][log_unit]; - size = sizeof(sense_log_drv_stat_t); /* diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 0a1b1ea36ddc..bdbade9a5cf5 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -300,6 +300,15 @@ static struct request *nbd_read_stat(struct nbd_device *lo) lo->disk->disk_name, result); goto harderror; } + + if (ntohl(reply.magic) != NBD_REPLY_MAGIC) { + printk(KERN_ERR "%s: Wrong magic (0x%lx)\n", + lo->disk->disk_name, + (unsigned long)ntohl(reply.magic)); + result = -EPROTO; + goto harderror; + } + req = nbd_find_request(lo, reply.handle); if (unlikely(IS_ERR(req))) { result = PTR_ERR(req); @@ -312,13 +321,6 @@ static struct request *nbd_read_stat(struct nbd_device *lo) goto harderror; } - if (ntohl(reply.magic) != NBD_REPLY_MAGIC) { - printk(KERN_ERR "%s: Wrong magic (0x%lx)\n", - lo->disk->disk_name, - (unsigned long)ntohl(reply.magic)); - result = -EPROTO; - goto harderror; - } if (ntohl(reply.error)) { printk(KERN_ERR "%s: Other side returned error (%d)\n", lo->disk->disk_name, ntohl(reply.error)); @@ -339,7 +341,8 @@ static struct request *nbd_read_stat(struct nbd_device *lo) printk(KERN_ERR "%s: Receive data failed (result %d)\n", lo->disk->disk_name, result); - goto harderror; + req->errors++; + return req; } dprintk(DBG_RX, "%s: request %p: got %d bytes data\n", lo->disk->disk_name, req, bvec->bv_len); diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index bde2c64b6346..451b996bba91 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2577,19 +2577,19 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm case PKT_CTRL_CMD_SETUP: if (!capable(CAP_SYS_ADMIN)) return -EPERM; - mutex_lock(&ctl_mutex); + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); ret = pkt_setup_dev(&ctrl_cmd); mutex_unlock(&ctl_mutex); break; case PKT_CTRL_CMD_TEARDOWN: if (!capable(CAP_SYS_ADMIN)) return -EPERM; - mutex_lock(&ctl_mutex); + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); ret = pkt_remove_dev(&ctrl_cmd); mutex_unlock(&ctl_mutex); break; case PKT_CTRL_CMD_STATUS: - mutex_lock(&ctl_mutex); + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); pkt_get_status(&ctrl_cmd); mutex_unlock(&ctl_mutex); break; diff --git a/drivers/block/rd.c b/drivers/block/rd.c index 3cf246abb5ec..a3f64bfe6b58 100644 --- a/drivers/block/rd.c +++ b/drivers/block/rd.c @@ -84,7 +84,7 @@ int rd_size = CONFIG_BLK_DEV_RAM_SIZE; /* Size of the RAM disks */ * behaviour. The default is still BLOCK_SIZE (needed by rd_load_image that * supposes the filesystem in the image uses a BLOCK_SIZE blocksize). */ -static int rd_blocksize = BLOCK_SIZE; /* blocksize of the RAM disks */ +static int rd_blocksize = CONFIG_BLK_DEV_RAM_BLOCKSIZE; /* * Copyright (C) 2000 Linus Torvalds. |
