commit cc5c516df028b221d94c65c47c5ae8d20f61b6f9
author Christoph Hellwig <hch@lst.de> Tue Jun 28 19:18:45 2022 +0200
committer Jens Axboe <axboe@kernel.dk> Tue Jun 28 11:32:42 2022 -0600
tree 1114eeab9f60729e53f9af2766760c31267649ac
parent 8b9ab62662048a3274361c7e5f64037c2c133e2c

block: simplify blktrace sysfs attribute creation

Add the trace attributes to the default gendisk attributes, just like
we already do for partitions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220628171850.1313069-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk.h

diff --git a/block/blk.h b/block/blk.h
index 1a0d3e6a..74d5943 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -452,6 +452,8 @@ extern struct device_attribute dev_attr_events;
 extern struct device_attribute dev_attr_events_async;
 extern struct device_attribute dev_attr_events_poll_msecs;
 
+extern struct attribute_group blk_trace_attr_group;
+
 long blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg);
 long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg);