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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 01:44:51 -0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 01:44:51 -0400
commit43d2548bb2ef7e6d753f91468a746784041e522d (patch)
tree77d13fcd48fd998393abb825ec36e2b732684a73 /drivers/block/pktcdvd.c
parent585583d95c5660973bc0cf64add517b040acd8a4 (diff)
parent85082fd7cbe3173198aac0eb5e85ab1edcc6352c (diff)
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of: arch/powerpc/Kconfig
Diffstat (limited to 'drivers/block/pktcdvd.c')
-rw-r--r--drivers/block/pktcdvd.c46
1 files changed, 30 insertions, 16 deletions
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 3ba1df93e9e3..45bee918c46a 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -49,6 +49,7 @@
49#include <linux/types.h> 49#include <linux/types.h>
50#include <linux/kernel.h> 50#include <linux/kernel.h>
51#include <linux/kthread.h> 51#include <linux/kthread.h>
52#include <linux/smp_lock.h>
52#include <linux/errno.h> 53#include <linux/errno.h>
53#include <linux/spinlock.h> 54#include <linux/spinlock.h>
54#include <linux/file.h> 55#include <linux/file.h>
@@ -2079,7 +2080,6 @@ static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd,
2079 unsigned char buf[64]; 2080 unsigned char buf[64];
2080 int ret; 2081 int ret;
2081 2082
2082 memset(buf, 0, sizeof(buf));
2083 init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ); 2083 init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
2084 cgc.sense = &sense; 2084 cgc.sense = &sense;
2085 cgc.buflen = pd->mode_offset + 12; 2085 cgc.buflen = pd->mode_offset + 12;
@@ -2126,7 +2126,6 @@ static noinline_for_stack int pkt_get_max_speed(struct pktcdvd_device *pd,
2126 unsigned char *cap_buf; 2126 unsigned char *cap_buf;
2127 int ret, offset; 2127 int ret, offset;
2128 2128
2129 memset(buf, 0, sizeof(buf));
2130 cap_buf = &buf[sizeof(struct mode_page_header) + pd->mode_offset]; 2129 cap_buf = &buf[sizeof(struct mode_page_header) + pd->mode_offset];
2131 init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_UNKNOWN); 2130 init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_UNKNOWN);
2132 cgc.sense = &sense; 2131 cgc.sense = &sense;
@@ -2633,11 +2632,12 @@ end_io:
2633 2632
2634 2633
2635 2634
2636static int pkt_merge_bvec(struct request_queue *q, struct bio *bio, struct bio_vec *bvec) 2635static int pkt_merge_bvec(struct request_queue *q, struct bvec_merge_data *bmd,
2636 struct bio_vec *bvec)
2637{ 2637{
2638 struct pktcdvd_device *pd = q->queuedata; 2638 struct pktcdvd_device *pd = q->queuedata;
2639 sector_t zone = ZONE(bio->bi_sector, pd); 2639 sector_t zone = ZONE(bmd->bi_sector, pd);
2640 int used = ((bio->bi_sector - zone) << 9) + bio->bi_size; 2640 int used = ((bmd->bi_sector - zone) << 9) + bmd->bi_size;
2641 int remaining = (pd->settings.size << 9) - used; 2641 int remaining = (pd->settings.size << 9) - used;
2642 int remaining2; 2642 int remaining2;
2643 2643
@@ -2645,7 +2645,7 @@ static int pkt_merge_bvec(struct request_queue *q, struct bio *bio, struct bio_v
2645 * A bio <= PAGE_SIZE must be allowed. If it crosses a packet 2645 * A bio <= PAGE_SIZE must be allowed. If it crosses a packet
2646 * boundary, pkt_make_request() will split the bio. 2646 * boundary, pkt_make_request() will split the bio.
2647 */ 2647 */
2648 remaining2 = PAGE_SIZE - bio->bi_size; 2648 remaining2 = PAGE_SIZE - bmd->bi_size;
2649 remaining = max(remaining, remaining2); 2649 remaining = max(remaining, remaining2);
2650 2650
2651 BUG_ON(remaining < 0); 2651 BUG_ON(remaining < 0);
@@ -2796,9 +2796,14 @@ out_mem:
2796 return ret; 2796 return ret;
2797} 2797}
2798 2798
2799static int pkt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) 2799static long pkt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2800{ 2800{
2801 struct pktcdvd_device *pd = inode->i_bdev->bd_disk->private_data; 2801 struct inode *inode = file->f_path.dentry->d_inode;
2802 struct pktcdvd_device *pd;
2803 long ret;
2804
2805 lock_kernel();
2806 pd = inode->i_bdev->bd_disk->private_data;
2802 2807
2803 VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd, imajor(inode), iminor(inode)); 2808 VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd, imajor(inode), iminor(inode));
2804 2809
@@ -2811,7 +2816,8 @@ static int pkt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, u
2811 case CDROM_LAST_WRITTEN: 2816 case CDROM_LAST_WRITTEN:
2812 case CDROM_SEND_PACKET: 2817 case CDROM_SEND_PACKET:
2813 case SCSI_IOCTL_SEND_COMMAND: 2818 case SCSI_IOCTL_SEND_COMMAND:
2814 return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); 2819 ret = blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg);
2820 break;
2815 2821
2816 case CDROMEJECT: 2822 case CDROMEJECT:
2817 /* 2823 /*
@@ -2820,14 +2826,15 @@ static int pkt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, u
2820 */ 2826 */
2821 if (pd->refcnt == 1) 2827 if (pd->refcnt == 1)
2822 pkt_lock_door(pd, 0); 2828 pkt_lock_door(pd, 0);
2823 return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); 2829 ret = blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg);
2830 break;
2824 2831
2825 default: 2832 default:
2826 VPRINTK(DRIVER_NAME": Unknown ioctl for %s (%x)\n", pd->name, cmd); 2833 VPRINTK(DRIVER_NAME": Unknown ioctl for %s (%x)\n", pd->name, cmd);
2827 return -ENOTTY; 2834 ret = -ENOTTY;
2828 } 2835 }
2829 2836 unlock_kernel();
2830 return 0; 2837 return ret;
2831} 2838}
2832 2839
2833static int pkt_media_changed(struct gendisk *disk) 2840static int pkt_media_changed(struct gendisk *disk)
@@ -2849,7 +2856,7 @@ static struct block_device_operations pktcdvd_ops = {
2849 .owner = THIS_MODULE, 2856 .owner = THIS_MODULE,
2850 .open = pkt_open, 2857 .open = pkt_open,
2851 .release = pkt_close, 2858 .release = pkt_close,
2852 .ioctl = pkt_ioctl, 2859 .unlocked_ioctl = pkt_ioctl,
2853 .media_changed = pkt_media_changed, 2860 .media_changed = pkt_media_changed,
2854}; 2861};
2855 2862
@@ -3014,7 +3021,8 @@ static void pkt_get_status(struct pkt_ctrl_command *ctrl_cmd)
3014 mutex_unlock(&ctl_mutex); 3021 mutex_unlock(&ctl_mutex);
3015} 3022}
3016 3023
3017static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) 3024static long pkt_ctl_ioctl(struct file *file, unsigned int cmd,
3025 unsigned long arg)
3018{ 3026{
3019 void __user *argp = (void __user *)arg; 3027 void __user *argp = (void __user *)arg;
3020 struct pkt_ctrl_command ctrl_cmd; 3028 struct pkt_ctrl_command ctrl_cmd;
@@ -3031,16 +3039,22 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm
3031 case PKT_CTRL_CMD_SETUP: 3039 case PKT_CTRL_CMD_SETUP:
3032 if (!capable(CAP_SYS_ADMIN)) 3040 if (!capable(CAP_SYS_ADMIN))
3033 return -EPERM; 3041 return -EPERM;
3042 lock_kernel();
3034 ret = pkt_setup_dev(new_decode_dev(ctrl_cmd.dev), &pkt_dev); 3043 ret = pkt_setup_dev(new_decode_dev(ctrl_cmd.dev), &pkt_dev);
3035 ctrl_cmd.pkt_dev = new_encode_dev(pkt_dev); 3044 ctrl_cmd.pkt_dev = new_encode_dev(pkt_dev);
3045 unlock_kernel();
3036 break; 3046 break;
3037 case PKT_CTRL_CMD_TEARDOWN: 3047 case PKT_CTRL_CMD_TEARDOWN:
3038 if (!capable(CAP_SYS_ADMIN)) 3048 if (!capable(CAP_SYS_ADMIN))
3039 return -EPERM; 3049 return -EPERM;
3050 lock_kernel();
3040 ret = pkt_remove_dev(new_decode_dev(ctrl_cmd.pkt_dev)); 3051 ret = pkt_remove_dev(new_decode_dev(ctrl_cmd.pkt_dev));
3052 unlock_kernel();
3041 break; 3053 break;
3042 case PKT_CTRL_CMD_STATUS: 3054 case PKT_CTRL_CMD_STATUS:
3055 lock_kernel();
3043 pkt_get_status(&ctrl_cmd); 3056 pkt_get_status(&ctrl_cmd);
3057 unlock_kernel();
3044 break; 3058 break;
3045 default: 3059 default:
3046 return -ENOTTY; 3060 return -ENOTTY;
@@ -3053,7 +3067,7 @@ static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cm
3053 3067
3054 3068
3055static const struct file_operations pkt_ctl_fops = { 3069static const struct file_operations pkt_ctl_fops = {
3056 .ioctl = pkt_ctl_ioctl, 3070 .unlocked_ioctl = pkt_ctl_ioctl,
3057 .owner = THIS_MODULE, 3071 .owner = THIS_MODULE,
3058}; 3072};
3059 3073