diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-10-30 12:43:08 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-10-30 12:43:08 +0400 |
| commit | 169ed55bd30305b933f52bfab32a58671d44ab68 (patch) | |
| tree | 32e280957474f458901abfce16fa2a1687ef7497 /drivers/mtd/mtd_blkdevs.c | |
| parent | 3d7851b3cdd43a734e5cc4c643fd886ab28ad4d5 (diff) | |
| parent | 45f81b1c96d9793e47ce925d257ea693ce0b193e (diff) | |
| download | linux-169ed55bd30305b933f52bfab32a58671d44ab68.tar.xz | |
Merge branch 'tip/perf/jump-label-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent
Diffstat (limited to 'drivers/mtd/mtd_blkdevs.c')
| -rw-r--r-- | drivers/mtd/mtd_blkdevs.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 62e68707b07f..50ab431b24eb 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -29,7 +29,6 @@ #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> @@ -38,6 +37,7 @@ #include "mtdcore.h" +static DEFINE_MUTEX(mtd_blkdevs_mutex); static LIST_HEAD(blktrans_majors); static DEFINE_MUTEX(blktrans_ref_mutex); @@ -181,7 +181,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) if (!dev) return -ERESTARTSYS; /* FIXME: busy loop! -arnd*/ - lock_kernel(); + mutex_lock(&mtd_blkdevs_mutex); mutex_lock(&dev->lock); if (!dev->mtd) { @@ -198,7 +198,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode) unlock: mutex_unlock(&dev->lock); blktrans_dev_put(dev); - unlock_kernel(); + mutex_unlock(&mtd_blkdevs_mutex); return ret; } @@ -210,7 +210,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode) if (!dev) return ret; - lock_kernel(); + mutex_lock(&mtd_blkdevs_mutex); mutex_lock(&dev->lock); /* Release one reference, we sure its not the last one here*/ @@ -223,7 +223,7 @@ static int blktrans_release(struct gendisk *disk, fmode_t mode) unlock: mutex_unlock(&dev->lock); blktrans_dev_put(dev); - unlock_kernel(); + mutex_unlock(&mtd_blkdevs_mutex); return ret; } @@ -256,7 +256,7 @@ static int blktrans_ioctl(struct block_device *bdev, fmode_t mode, if (!dev) return ret; - lock_kernel(); + mutex_lock(&mtd_blkdevs_mutex); mutex_lock(&dev->lock); if (!dev->mtd) @@ -271,7 +271,7 @@ static int blktrans_ioctl(struct block_device *bdev, fmode_t mode, } unlock: mutex_unlock(&dev->lock); - unlock_kernel(); + mutex_unlock(&mtd_blkdevs_mutex); blktrans_dev_put(dev); return ret; } |