Re: [PATCH 09/10] xfs: remove MS_ACTIVE guard from inode reclaim work

Christoph Hellwig
2012-03-12T13:30:43Z

On Wed, Mar 07, 2012 at 03:50:27PM +1100, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> We need to be able to queue inode reclaim work during the mount
> process as quotacheck can cause large amounts of inodes to be read
> and we need to clean them up periodically as the shrinkers can not
> run until after the mount process has completed.
>
> The reclaim work is currently protected from running during the
> unmount process by a check against MS_ACTIVE. Unfortunately, this
> also means that the relcaim work cannot run during mount. The
> unmount process should stop the reclaim cleanly before freeing
> anything that the reclaim work depends on, so there is no need to
> have this guard in place.
>
> Also, the inode reclaim work is demand driven, so ther eis no need
> to start it immediately during mount. It will be started the moment
> an inode is queued for reclaim, so qutoacheck will trigger it just
> fine.
>
> Signed-off-by: Dave Chinner <dchinner@redhat.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>