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authorJiaying Zhang <jiayingz@google.com>2011-03-21 21:38:05 -0400
committerTheodore Ts'o <tytso@mit.edu>2011-03-21 21:38:05 -0400
commit0562e0bad483d10e9651fbb8f21dc3d0bad57374 (patch)
tree19f6597f92c028badcb6df360ccac22240378e25 /fs/ext4/balloc.c
parent4596fe07679ff0fae904515691ea747467614871 (diff)
downloadop-kernel-dev-0562e0bad483d10e9651fbb8f21dc3d0bad57374.zip
op-kernel-dev-0562e0bad483d10e9651fbb8f21dc3d0bad57374.tar.gz
ext4: add more tracepoints and use dev_t in the trace buffer
- Add more ext4 tracepoints. - Change ext4 tracepoints to use dev_t field with MAJOR/MINOR macros so that we can save 4 bytes in the ring buffer on some platforms. - Add sync_mode to ext4_da_writepages, ext4_da_write_pages, and ext4_da_writepages_result tracepoints. Also remove for_reclaim field from ext4_da_writepages since it is usually not very useful. Signed-off-by: Jiaying Zhang <jiayingz@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/balloc.c')
-rw-r--r--fs/ext4/balloc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index adf96b8..97b970e 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -21,6 +21,8 @@
#include "ext4_jbd2.h"
#include "mballoc.h"
+#include <trace/events/ext4.h>
+
/*
* balloc.c contains the blocks allocation and deallocation routines
*/
@@ -342,6 +344,7 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
* We do it here so the bitmap uptodate bit
* get set with buffer lock held.
*/
+ trace_ext4_read_block_bitmap_load(sb, block_group);
set_bitmap_uptodate(bh);
if (bh_submit_read(bh) < 0) {
put_bh(bh);
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