diff options
| -rw-r--r-- | drivers/md/bitmap.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 1a7f402b79ba..cf77cbf9ed22 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -27,6 +27,7 @@ #include <linux/mount.h> #include <linux/buffer_head.h> #include <linux/seq_file.h> +#include <trace/events/block.h> #include "md.h" #include "bitmap.h" @@ -1008,8 +1009,12 @@ void bitmap_unplug(struct bitmap *bitmap) need_write = test_and_clear_page_attr(bitmap, i, BITMAP_PAGE_NEEDWRITE); if (dirty || need_write) { - if (!writing) + if (!writing) { bitmap_wait_writes(bitmap); + if (bitmap->mddev->queue) + blk_add_trace_msg(bitmap->mddev->queue, + "md bitmap_unplug"); + } clear_page_attr(bitmap, i, BITMAP_PAGE_PENDING); write_page(bitmap, bitmap->storage.filemap[i], 0); writing = 1; @@ -1234,6 +1239,10 @@ void bitmap_daemon_work(struct mddev *mddev) } bitmap->allclean = 1; + if (bitmap->mddev->queue) + blk_add_trace_msg(bitmap->mddev->queue, + "md bitmap_daemon_work"); + /* Any file-page which is PENDING now needs to be written. * So set NEEDWRITE now, then after we make any last-minute changes * we will write it. |