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authorJiaying Zhang <jiayingz@google.com>2011-03-22 04:38:05 +0300
committerTheodore Ts'o <tytso@mit.edu>2011-03-22 04:38:05 +0300
commit0562e0bad483d10e9651fbb8f21dc3d0bad57374 (patch)
tree19f6597f92c028badcb6df360ccac22240378e25 /fs/ext4/namei.c
parent4596fe07679ff0fae904515691ea747467614871 (diff)
downloadlinux-0562e0bad483d10e9651fbb8f21dc3d0bad57374.tar.xz
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/namei.c')
-rw-r--r--fs/ext4/namei.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index ad87584aa8d2..f9f83878843a 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -40,6 +40,7 @@
#include "xattr.h"
#include "acl.h"
+#include <trace/events/ext4.h>
/*
* define how far ahead to read directories while searching them.
*/
@@ -2183,6 +2184,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
struct ext4_dir_entry_2 *de;
handle_t *handle;
+ trace_ext4_unlink_enter(dir, dentry);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
dquot_initialize(dir);
@@ -2228,6 +2230,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
end_unlink:
ext4_journal_stop(handle);
brelse(bh);
+ trace_ext4_unlink_exit(dentry, retval);
return retval;
}