Theodore Ts'o 296c355cd6
ext4: Use tracepoints for mb_history trace file ...
The /proc/fs/ext4/<dev>/mb_history was maintained manually, and had a
number of problems: it required a largish amount of memory to be
allocated for each ext4 filesystem, and the s_mb_history_lock
introduced a CPU contention problem.
By ripping out the mb_history code and replacing it with ftrace
tracepoints, and we get more functionality: timestamps, event
filtering, the ability to correlate mballoc history with other ext4
tracepoints, etc.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu >
2009-09-30 00:32:42 -04:00
2009-09-23 09:32:11 -07:00
2009-09-23 07:39:28 -07:00
2009-09-24 21:22:33 +01:00
2009-09-24 07:20:57 -07:00
2009-09-24 07:20:59 -07:00
2009-09-01 12:45:09 -04:00
2009-08-29 19:09:27 -07:00
2009-09-22 07:51:45 -07:00
2009-09-19 00:14:32 -03:00
2009-09-23 07:39:56 -07:00
2009-09-30 00:32:42 -04:00
2009-09-23 15:20:16 -07:00
2009-09-18 22:45:50 +02:00
2009-09-23 07:39:28 -07:00
2009-08-19 21:46:09 -07:00
2009-09-24 07:21:03 -07:00
2009-09-20 12:27:42 +02:00
2009-09-10 10:46:55 +03:00
2009-09-19 01:55:27 -04:00
2009-09-23 22:26:47 +09:30
2009-09-21 15:14:55 +02:00
2009-09-09 13:29:38 -07:00
2009-09-23 07:39:28 -07:00
2009-09-23 10:11:08 -07:00
2009-09-23 10:07:49 -07:00
2009-08-23 10:32:40 +02:00
2009-09-11 10:29:53 +02:00
2009-09-21 15:14:56 +02:00
2009-09-21 15:14:56 +02:00
2009-09-23 07:39:44 -07:00
2009-09-24 07:53:22 -07:00
2009-09-22 07:51:45 -07:00
2009-09-23 06:46:41 -07:00
2009-09-23 07:39:28 -07:00
2009-09-24 08:32:11 -07:00
2009-09-23 07:39:28 -07:00
2009-09-23 06:46:39 -07:00
2009-08-22 14:25:32 -07:00
2009-08-22 14:25:32 -07:00
2009-09-15 17:04:38 -07:00
2009-09-23 22:59:42 +02:00
2009-09-10 14:33:36 -06:00
2009-09-21 15:14:56 +02:00
2009-09-23 07:39:48 -07:00
2009-09-19 09:37:23 -07:00
2009-09-18 09:48:52 -07:00
2009-09-23 06:46:39 -07:00
2009-09-02 21:29:22 +10:00
2009-09-08 16:36:08 +01:00
2009-09-18 09:48:52 -07:00
2009-08-28 15:21:12 -04:00
2009-09-22 07:17:26 -07:00
2009-09-22 07:17:39 -07:00
2009-09-23 07:39:46 -07:00
2009-09-21 15:14:57 +02:00
2009-09-09 13:29:42 -07:00
296c355cd6
