diff options
Diffstat (limited to 'drivers/mtd/mtd_blkdevs.c')
| -rw-r--r-- | drivers/mtd/mtd_blkdevs.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 1d2144d77470..62e68707b07f 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -29,6 +29,7 @@ #include <linux/blkdev.h> #include <linux/blkpg.h> #include <linux/spinlock.h> +#include <linux/smp_lock.h> #include <linux/hdreg.h> #include <linux/init.h> #include <linux/mutex.h> @@ -87,14 +88,14 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, buf = req->buffer; - if (!blk_fs_request(req)) + if (req->cmd_type != REQ_TYPE_FS) return -EIO; if (blk_rq_pos(req) + blk_rq_cur_sectors(req) > get_capacity(req->rq_disk)) return -EIO; - if (blk_discard_rq(req)) + if (req->cmd_flags & REQ_DISCARD) return tr->discard(dev, block, nsect); switch(rq_data_dir(req)) { @@ -178,8 +179,9 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) int ret; if (!dev) - return -ERESTARTSYS; + return -ERESTARTSYS; /* FIXME: busy loop! -arnd*/ + lock_kernel(); mutex_lock(&dev->lock); if (!dev->mtd) { @@ -196,6 +198,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) unlock: mutex_unlock(&dev->lock); blktrans_dev_put(dev); + unlock_kernel(); return ret; } @@ -207,6 +210,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode) if (!dev) return ret; + lock_kernel(); mutex_lock(&dev->lock); /* Release one reference, we sure its not the last one here*/ @@ -219,6 +223,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode) unlock: mutex_unlock(&dev->lock); blktrans_dev_put(dev); + unlock_kernel(); return ret; } @@ -251,6 +256,7 @@ static int blktrans_ioctl(struct block_device *bdev, fmode_t mode, if (!dev) return ret; + lock_kernel(); mutex_lock(&dev->lock); if (!dev->mtd) @@ -265,6 +271,7 @@ static int blktrans_ioctl(struct block_device *bdev, fmode_t mode, } unlock: mutex_unlock(&dev->lock); + unlock_kernel(); blktrans_dev_put(dev); return ret; } @@ -273,7 +280,7 @@ static const struct block_device_operations mtd_blktrans_ops = { .owner = THIS_MODULE, .open = blktrans_open, .release = blktrans_release, - .locked_ioctl = blktrans_ioctl, + .ioctl = blktrans_ioctl, .getgeo = blktrans_getgeo, }; |