Re: [PATCH] Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"

Brian Foster
2016-01-13T13:22:30Z

On Wed, Jan 13, 2016 at 04:12:48PM +1100, Dave Chinner wrote:
> This reverts commit 24ba16bb3d499c49974669cd8429c3e4138ab102 as it
> prevents machines from suspending. This regression occurs when the
> xfsaild is idle on entry to suspend, and so there s no activity to
> wake it from it's idle sleep and hence see that it is supposed to
> freeze. Hence the freezer times out waiting for it and suspend is
> cancelled.
>
> There is no obvious fix for this short of freezing the filesystem
> properly, so revert this change for now.
>
> Signed-off-by: Dave Chinner <david@fromorbit.com>
> ---

Reviewed-by: Brian Foster <bfoster@redhat.com>

> fs/xfs/xfs_trans_ail.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
> index aa67339..4f18fd9 100644
> --- a/fs/xfs/xfs_trans_ail.c
> +++ b/fs/xfs/xfs_trans_ail.c
> @@ -497,7 +497,6 @@ xfsaild(
> long tout = 0; /* milliseconds */
>
> current->flags |= PF_MEMALLOC;
> - set_freezable();
>
> while (!kthread_should_stop()) {
> if (tout && tout <= 20)
> --
> 2.5.0
>
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