Re: [PATCH 5.15 1/6] xfs: bound maximum wait time for inodegc work

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On Thu, Sep 21, 2023 at 06:01:51PM -0700, Leah Rumancik wrote:
From: Dave Chinner <dchinner@xxxxxxxxxx>

[ Upstream commit 7cf2b0f9611b9971d663e1fc3206eeda3b902922 ]

Currently inodegc work can sit queued on the per-cpu queue until
the workqueue is either flushed of the queue reaches a depth that
triggers work queuing (and later throttling). This means that we
could queue work that waits for a long time for some other event to
trigger flushing.

Hence instead of just queueing work at a specific depth, use a
delayed work that queues the work at a bound time. We can still
schedule the work immediately at a given depth, but we no long need
to worry about leaving a number of items on the list that won't get
processed until external events prevail.

Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Leah Rumancik <leah.rumancik@xxxxxxxxx>
Acked-by: Darrick J. Wong <djwong@xxxxxxxxxx>

Queued up all 6, thanks!


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