Re: [PATCH v2 4/8] btrfs: wake up async_delalloc_pages waiters after submit

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On 29.06.21 г. 16:59, Josef Bacik wrote:
> We use the async_delalloc_pages mechanism to make sure that we've
> completed our async work before trying to continue our delalloc
> flushing.  The reason for this is we need to see any ordered extents
> that were created by our delalloc flushing.  However we're waking up
> before we do the submit work, which is before we create the ordered
> extents.  This is a pretty wide race window where we could potentially
> think there are no ordered extents and thus exit shrink_delalloc
> prematurely.  Fix this by waking us up after we've done the work to
> create ordered extents.
> 
> cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>

Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>

This is an independent change from the rest of the series and it can go
before the rest.



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