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| author | Jiaying Zhang <jiayingz@google.com> | 2011-03-21 21:38:05 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-03-21 21:38:05 -0400 |
| commit | 0562e0bad483d10e9651fbb8f21dc3d0bad57374 (patch) | |
| tree | 19f6597f92c028badcb6df360ccac22240378e25 /fs/ext4/namei.c | |
| parent | 4596fe07679ff0fae904515691ea747467614871 (diff) | |
| download | lwn-0562e0bad483d10e9651fbb8f21dc3d0bad57374.tar.gz lwn-0562e0bad483d10e9651fbb8f21dc3d0bad57374.zip | |
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.c | 3 |
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; } |