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authorArnd Bergmann <arnd@arndb.de>2010-07-08 10:18:46 +0200
committerJens Axboe <jaxboe@fusionio.com>2010-08-07 18:25:00 +0200
commit8a6cfeb6deca3a8fefd639d898b0d163c0b5d368 (patch)
tree9a633ad48c3b1ada0519ee7bade0602f940037f6 /drivers/cdrom
parent34484062445fe905bf02c72f87ddda21881acda3 (diff)
downloadlinaro-lsk-8a6cfeb6deca3a8fefd639d898b0d163c0b5d368.tar.gz
block: push down BKL into .locked_ioctl
As a preparation for the removal of the big kernel lock in the block layer, this removes the BKL from the common ioctl handling code, moving it into every single driver still using it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/cdrom')
-rw-r--r--drivers/cdrom/gdrom.c11
-rw-r--r--drivers/cdrom/viocd.c11
2 files changed, 18 insertions, 4 deletions
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 5219b57deb3..1772fd914fb 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -34,6 +34,7 @@
#include <linux/blkdev.h>
#include <linux/interrupt.h>
#include <linux/device.h>
+#include <linux/smp_lock.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
@@ -509,7 +510,13 @@ static int gdrom_bdops_mediachanged(struct gendisk *disk)
static int gdrom_bdops_ioctl(struct block_device *bdev, fmode_t mode,
unsigned cmd, unsigned long arg)
{
- return cdrom_ioctl(gd.cd_info, bdev, mode, cmd, arg);
+ int ret;
+
+ lock_kernel();
+ ret = cdrom_ioctl(gd.cd_info, bdev, mode, cmd, arg);
+ unlock_kernel();
+
+ return ret;
}
static const struct block_device_operations gdrom_bdops = {
@@ -517,7 +524,7 @@ static const struct block_device_operations gdrom_bdops = {
.open = gdrom_bdops_open,
.release = gdrom_bdops_release,
.media_changed = gdrom_bdops_mediachanged,
- .locked_ioctl = gdrom_bdops_ioctl,
+ .ioctl = gdrom_bdops_ioctl,
};
static irqreturn_t gdrom_command_interrupt(int irq, void *dev_id)
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 1fa6628d150..16dada0627e 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -42,6 +42,7 @@
#include <linux/module.h>
#include <linux/completion.h>
#include <linux/proc_fs.h>
+#include <linux/smp_lock.h>
#include <linux/seq_file.h>
#include <linux/scatterlist.h>
@@ -167,7 +168,13 @@ static int viocd_blk_ioctl(struct block_device *bdev, fmode_t mode,
unsigned cmd, unsigned long arg)
{
struct disk_info *di = bdev->bd_disk->private_data;
- return cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
+ int ret;
+
+ lock_kernel();
+ ret = cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
+ unlock_kernel();
+
+ return ret;
}
static int viocd_blk_media_changed(struct gendisk *disk)
@@ -180,7 +187,7 @@ static const struct block_device_operations viocd_fops = {
.owner = THIS_MODULE,
.open = viocd_blk_open,
.release = viocd_blk_release,
- .locked_ioctl = viocd_blk_ioctl,
+ .ioctl = viocd_blk_ioctl,
.media_changed = viocd_blk_media_changed,
};