ext4: Add new tracepoints to track mballoc's buddy bitmap loads

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 0bdc0188e5e2..a93f554b6803 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -890,6 +890,7 @@ static int ext4_mb_init_cache(struct page *page, char *incore)
                         BUG_ON(incore == NULL);
                         mb_debug(1, "put buddy for group %u in page %lu/%x\n",
                                 group, page->index, i * blocksize);
+                        trace_ext4_mb_buddy_bitmap_load(sb, group);
                         grinfo = ext4_get_group_info(sb, group);
                         grinfo->bb_fragments = 0;
                         memset(grinfo->bb_counters, 0,
@@ -907,6 +908,7 @@ static int ext4_mb_init_cache(struct page *page, char *incore)
                         BUG_ON(incore != NULL);
                         mb_debug(1, "put bitmap for group %u in page %lu/%x\n",
                                 group, page->index, i * blocksize);
+                        trace_ext4_mb_bitmap_load(sb, group);
 
                         /* see comments in ext4_mb_put_pa() */
                         ext4_lock_group(sb, group);