A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

ext4: Add debugging markers that can be used by systemtap

Browse source 
This debugging markers are designed to debug problems such as the
random filesystem latency problems reported by Arjan.

Signed-off-by: "Theodore Ts'o" <[email protected]>
This commit is contained in:
Theodore Ts'o 2008-10-05 20:50:06 -04:00
commit ede86cc473
4 changed files with 16 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
fs/jbd2/checkpoint.c
View file

@ -20,6 +20,7 @@
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/jbd2.h>
#include <linux/marker.h>
#include <linux/errno.h>
#include <linux/slab.h>
@ -328,6 +329,8 @@ int jbd2_log_do_checkpoint(journal_t *journal)
* journal straight away.
*/
result = jbd2_cleanup_journal_tail(journal);
trace_mark(jbd2_checkpoint, "dev %s need_checkpoint %d",
journal->j_devname, result);
jbd_debug(1, "cleanup_journal_tail returned %d\n", result);
if (result <= 0)
return result;

6
fs/jbd2/commit.c
View file

@ -16,6 +16,7 @@
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/jbd2.h>
#include <linux/marker.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/mm.h>
@ -368,6 +369,8 @@ void jbd2_journal_commit_transaction(journal_t *journal)
commit_transaction = journal->j_running_transaction;
J_ASSERT(commit_transaction->t_state == T_RUNNING);
trace_mark(jbd2_start_commit, "dev %s transaction %d",
journal->j_devname, commit_transaction->t_tid);
jbd_debug(1, "JBD: starting commit of transaction %d\n",
commit_transaction->t_tid);
@ -985,6 +988,9 @@ restart_loop:
}
spin_unlock(&journal->j_list_lock);
trace_mark(jbd2_end_commit, "dev %s transaction %d head %d",
journal->j_devname, commit_transaction->t_tid,
journal->j_tail_sequence);
jbd_debug(1, "JBD: commit %d complete, head %d\n",
journal->j_commit_sequence, journal->j_tail_sequence);