dax: add tracepoint to dax_writeback_one()

[mirror_ubuntu-disco-kernel.git] / fs / dax.c

diff --git a/fs/dax.c b/fs/dax.c
index 7cf2686761e2d2ae6e2ff94385b61d08f0ec0ba2..9bec30e062118c14499fb4af8d8236d3eba6fb92 100644 (file)
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -823,6 +823,7 @@ static int dax_writeback_one(struct block_device *bdev,
        spin_lock_irq(&mapping->tree_lock);
        radix_tree_tag_clear(page_tree, index, PAGECACHE_TAG_DIRTY);
        spin_unlock_irq(&mapping->tree_lock);
+       trace_dax_writeback_one(mapping->host, index, size >> PAGE_SHIFT);
  dax_unlock:
        dax_read_unlock(id);
        put_locked_mapping_entry(mapping, index, entry);