Re: [linux-pm] [Patch] JBD and JBD2 missing set_freezable()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Friday, February 03, 2012, Nigel Cunningham wrote:
> Hi all.
> 
> With the latest and greatest changes to the freezer, I started seeing
> panics that were caused by jbd2 running post-process freezing and
> hitting the canary BUG_ON for non-TuxOnIce I/O submission. I've traced
> this back to a lack of set_freezable calls in both jbd and jbd2. Since
> they're clearly meant to be frozen (there are tests for freezing()), I
> submit the following patch to add the missing calls.
> 
> Signed-off-by: Nigel Cunningham <nigel@xxxxxxxxxxxx>

Well, I wonder what the filesystems people think about that.

Thanks,
Rafael


> diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
> index 59c09f9..89cd985 100644
> --- a/fs/jbd/journal.c
> +++ b/fs/jbd/journal.c
> @@ -129,6 +129,8 @@ static int kjournald(void *arg)
>  	setup_timer(&journal->j_commit_timer, commit_timeout,
>  			(unsigned long)current);
> 
> +	set_freezable();
> +
>  	/* Record that the journal thread is running */
>  	journal->j_task = current;
>  	wake_up(&journal->j_wait_done_commit);
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index c0a5f9f..663e47c 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -139,6 +139,8 @@ static int kjournald2(void *arg)
>  	setup_timer(&journal->j_commit_timer, commit_timeout,
>  			(unsigned long)current);
> 
> +	set_freezable();
> +
>  	/* Record that the journal thread is running */
>  	journal->j_task = current;
>  	wake_up(&journal->j_wait_done_commit);
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux