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 2026-10-30 19:51:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

jbd: check for error returned by kthread_create on creating journal thread

Browse source 
If the thread failed to create the subsequent wait_event will hang forever.

This is likely to happen if kernel hits max_threads limit.

Will be critical for virtualization systems that limit the number of tasks
and kernel memory usage within the container.

(akpm: JBD should be converted fully to the kthread API: kthread_should_stop()
and kthread_stop()).

Cc: <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Pavel Emelianov 2007-05-08 00:30:42 -07:00 • committed by Linus Torvalds
commit 97f0678467
2 changed files with 18 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

13
fs/jbd2/journal.c
View file

@ -210,10 +210,16 @@ end_loop:
return 0;
}
static void jbd2_journal_start_thread(journal_t *journal)
static int jbd2_journal_start_thread(journal_t *journal)
{
kthread_run(kjournald2, journal, "kjournald2");
struct task_struct *t;
t = kthread_run(kjournald2, journal, "kjournald2");
if (IS_ERR(t))
return PTR_ERR(t);
wait_event(journal->j_wait_done_commit, journal->j_task != 0);
return 0;
}
static void journal_kill_thread(journal_t *journal)
@ -839,8 +845,7 @@ static int journal_reset(journal_t *journal)
/* Add the dynamic fields and write it to disk. */
jbd2_journal_update_superblock(journal, 1);
jbd2_journal_start_thread(journal);
return 0;
return jbd2_journal_start_thread(journal);
}
/**