diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/rtmutex-tester.c | 6 | ||||
| -rw-r--r-- | kernel/trace/blktrace.c | 14 |
2 files changed, 9 insertions, 11 deletions
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c index a56f629..66cb89b 100644 --- a/kernel/rtmutex-tester.c +++ b/kernel/rtmutex-tester.c @@ -76,7 +76,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) } if (!lockwakeup && td->bkl == 4) { +#ifdef CONFIG_LOCK_KERNEL unlock_kernel(); +#endif td->bkl = 0; } return 0; @@ -133,14 +135,18 @@ static int handle_op(struct test_thread_data *td, int lockwakeup) if (td->bkl) return 0; td->bkl = 1; +#ifdef CONFIG_LOCK_KERNEL lock_kernel(); +#endif td->bkl = 4; return 0; case RTTEST_UNLOCKBKL: if (td->bkl != 4) break; +#ifdef CONFIG_LOCK_KERNEL unlock_kernel(); +#endif td->bkl = 0; return 0; diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 959f8d6..5328e87 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -23,7 +23,6 @@ #include <linux/mutex.h> #include <linux/slab.h> #include <linux/debugfs.h> -#include <linux/smp_lock.h> #include <linux/time.h> #include <linux/uaccess.h> @@ -639,7 +638,6 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg) if (!q) return -ENXIO; - lock_kernel(); mutex_lock(&bdev->bd_mutex); switch (cmd) { @@ -667,7 +665,6 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg) } mutex_unlock(&bdev->bd_mutex); - unlock_kernel(); return ret; } @@ -1652,10 +1649,9 @@ static ssize_t sysfs_blk_trace_attr_show(struct device *dev, struct block_device *bdev; ssize_t ret = -ENXIO; - lock_kernel(); bdev = bdget(part_devt(p)); if (bdev == NULL) - goto out_unlock_kernel; + goto out; q = blk_trace_get_queue(bdev); if (q == NULL) @@ -1683,8 +1679,7 @@ out_unlock_bdev: mutex_unlock(&bdev->bd_mutex); out_bdput: bdput(bdev); -out_unlock_kernel: - unlock_kernel(); +out: return ret; } @@ -1714,11 +1709,10 @@ static ssize_t sysfs_blk_trace_attr_store(struct device *dev, ret = -ENXIO; - lock_kernel(); p = dev_to_part(dev); bdev = bdget(part_devt(p)); if (bdev == NULL) - goto out_unlock_kernel; + goto out; q = blk_trace_get_queue(bdev); if (q == NULL) @@ -1753,8 +1747,6 @@ out_unlock_bdev: mutex_unlock(&bdev->bd_mutex); out_bdput: bdput(bdev); -out_unlock_kernel: - unlock_kernel(); out: return ret ? ret : count; } |
