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authorOmar Sandoval <osandov@fb.com>2017-01-31 14:53:20 -0800
committerJens Axboe <axboe@fb.com>2017-02-02 10:20:16 -0700
commit18fbda91c6370d520278db9ee1e768b59ef5c4ab (patch)
tree24a7e92d1dd90533dd783ea87abf13cf55284049 /block/blk.h
parenta428d314ebcf65842fd64ad850c02c280586e74d (diff)
downloadlinux-18fbda91c6370d520278db9ee1e768b59ef5c4ab.tar.bz2
block: use same block debugfs directory for blk-mq and blktrace
When I added the blk-mq debugging information to debugfs, I didn't notice that blktrace also creates a "block" directory in debugfs. Make them use the same dentry, now created in the core block code. Based on a patch from Jens. Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk.h')
-rw-r--r--block/blk.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h
index c1bd4bf9e645..6aa53a4aad88 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -14,6 +14,10 @@
/* Max future timer expiry for timeouts */
#define BLK_MAX_TIMEOUT (5 * HZ)
+#ifdef CONFIG_DEBUG_FS
+extern struct dentry *blk_debugfs_root;
+#endif
+
struct blk_flush_queue {
unsigned int flush_queue_delayed:1;
unsigned int flush_pending_idx:1;