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

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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o
2010-05-17 03:00:00 -04:00
parent 5a58ec8766
commit f307333e14
2 changed files with 35 additions and 0 deletions
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2
fs/ext4/mballoc.c
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@@ -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);