[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23
Signed-off-by: Jens Axboe <axboe@suse.de>
diff --git a/block/ioctl.c b/block/ioctl.c
index 35fdb7d..9cfa2e1 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 @@
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;
}