diff options
| author | Jens Axboe <axboe@suse.de> | 2006-03-23 20:00:26 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-03-23 20:00:26 +0100 |
| commit | 2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4 (patch) | |
| tree | d4fe59a7ca0c110690937085548936a4535c39db /block/ioctl.c | |
| parent | 6dac40a7ce2483a47b54af07afebeb84131c7228 (diff) | |
| download | lwn-2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4.tar.gz lwn-2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4.zip | |
[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'block/ioctl.c')
| -rw-r--r-- | block/ioctl.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index 35fdb7dc6512..9cfa2e1ecb24 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -5,6 +5,7 @@ #include <linux/backing-dev.h> #include <linux/buffer_head.h> #include <linux/smp_lock.h> +#include <linux/blktrace_api.h> #include <asm/uaccess.h> static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user *arg) @@ -189,6 +190,11 @@ static int blkdev_locked_ioctl(struct file *file, struct block_device *bdev, return put_ulong(arg, bdev->bd_inode->i_size >> 9); case BLKGETSIZE64: return put_u64(arg, bdev->bd_inode->i_size); + case BLKTRACESTART: + case BLKTRACESTOP: + case BLKTRACESETUP: + case BLKTRACETEARDOWN: + return blk_trace_ioctl(bdev, cmd, (char __user *) arg); } return -ENOIOCTLCMD; } |