From: "Darrick J. Wong" <djwong@kernel.org>
To: Dave Chinner <david@fromorbit.com>
Cc: linux-xfs@vger.kernel.org, hch@infradead.org
Subject: Re: [PATCH 14/20] xfs: parallelize inode inactivation
Date: Mon, 2 Aug 2021 14:33:20 -0700 [thread overview]
Message-ID: <20210802213320.GO3601443@magnolia> (raw)
In-Reply-To: <20210802005532.GF2757197@dread.disaster.area>
On Mon, Aug 02, 2021 at 10:55:32AM +1000, Dave Chinner wrote:
> On Thu, Jul 29, 2021 at 11:45:10AM -0700, Darrick J. Wong wrote:
> > From: Darrick J. Wong <djwong@kernel.org>
> >
> > Split the inode inactivation work into per-AG work items so that we can
> > take advantage of parallelization.
> >
> > Signed-off-by: Darrick J. Wong <djwong@kernel.org>
> > ---
> > fs/xfs/libxfs/xfs_ag.c | 12 ++++++-
> > fs/xfs/libxfs/xfs_ag.h | 10 +++++
> > fs/xfs/xfs_icache.c | 88 ++++++++++++++++++++++++++++--------------------
> > fs/xfs/xfs_icache.h | 2 +
> > fs/xfs/xfs_mount.c | 9 +----
> > fs/xfs/xfs_mount.h | 8 ----
> > fs/xfs/xfs_super.c | 2 -
> > fs/xfs/xfs_trace.h | 82 ++++++++++++++++++++++++++++++++-------------
> > 8 files changed, 134 insertions(+), 79 deletions(-)
>
> ....
>
> > --- a/fs/xfs/xfs_icache.c
> > +++ b/fs/xfs/xfs_icache.c
> > @@ -420,9 +420,11 @@ xfs_blockgc_queue(
> > */
> > static void
> > xfs_inodegc_queue(
> > - struct xfs_mount *mp,
> > + struct xfs_perag *pag,
> > struct xfs_inode *ip)
> > {
> > + struct xfs_mount *mp = pag->pag_mount;
> > +
> > if (!test_bit(XFS_OPFLAG_INODEGC_RUNNING_BIT, &mp->m_opflags))
> > return;
> >
> > @@ -431,8 +433,8 @@ xfs_inodegc_queue(
> > unsigned int delay;
> >
> > delay = xfs_gc_delay_ms(mp, ip, XFS_ICI_INODEGC_TAG);
> > - trace_xfs_inodegc_queue(mp, delay);
> > - queue_delayed_work(mp->m_gc_workqueue, &mp->m_inodegc_work,
> > + trace_xfs_inodegc_queue(pag, delay);
> > + queue_delayed_work(mp->m_gc_workqueue, &pag->pag_inodegc_work,
> > msecs_to_jiffies(delay));
> > }
> > rcu_read_unlock();
>
> I think you missed this change in xfs_inodegc_queue():
>
> @@ -492,7 +492,7 @@ xfs_inodegc_queue(
> return;
>
> rcu_read_lock();
> - if (radix_tree_tagged(&mp->m_perag_tree, XFS_ICI_INODEGC_TAG)) {
> + if (radix_tree_tagged(&pag->pag_ici_root, XFS_ICI_INODEGC_TAG)) {
Yep, I've rebased this series so many times that merge conflict
resolution mutations have crept in. Fixed; thank you. :(
(And FWIW for v9 I moved this patch to be immediately after the patch
that changes xfs to use the radix tree tags; this reduces the churn in
struct xfs_mount somewhat.)
--D
> unsigned int delay;
>
> delay = xfs_gc_delay_ms(pag, ip, XFS_ICI_INODEGC_TAG);
>
> Cheers,
>
> Dave.
>
> --
> Dave Chinner
> david@fromorbit.com
next prev parent reply other threads:[~2021-08-02 21:33 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-29 18:43 [PATCHSET v8 00/20] xfs: deferred inode inactivation Darrick J. Wong
2021-07-29 18:43 ` [PATCH 01/20] xfs: move xfs_inactive call to xfs_inode_mark_reclaimable Darrick J. Wong
2021-07-29 18:44 ` [PATCH 02/20] xfs: detach dquots from inode if we don't need to inactivate it Darrick J. Wong
2021-07-29 18:44 ` [PATCH 03/20] xfs: defer inode inactivation to a workqueue Darrick J. Wong
2021-07-30 4:24 ` Dave Chinner
2021-07-31 4:21 ` Darrick J. Wong
2021-08-01 21:49 ` Dave Chinner
2021-08-01 23:47 ` Dave Chinner
2021-08-03 8:34 ` [PATCH, alternative] xfs: per-cpu deferred inode inactivation queues Dave Chinner
2021-08-03 20:20 ` Darrick J. Wong
2021-08-04 3:20 ` [PATCH, alternative v2] " Darrick J. Wong
2021-08-04 10:03 ` [PATCH] xfs: inodegc needs to stop before freeze Dave Chinner
2021-08-04 12:37 ` Dave Chinner
2021-08-04 10:46 ` [PATCH] xfs: don't run inodegc flushes when inodegc is not active Dave Chinner
2021-08-04 16:20 ` Darrick J. Wong
2021-08-04 11:09 ` [PATCH, alternative v2] xfs: per-cpu deferred inode inactivation queues Dave Chinner
2021-08-04 15:59 ` Darrick J. Wong
2021-08-04 21:35 ` Dave Chinner
2021-08-04 11:49 ` [PATCH, pre-03/20 #1] xfs: introduce CPU hotplug infrastructure Dave Chinner
2021-08-04 11:50 ` [PATCH, pre-03/20 #2] xfs: introduce all-mounts list for cpu hotplug notifications Dave Chinner
2021-08-04 16:06 ` Darrick J. Wong
2021-08-04 21:17 ` Dave Chinner
2021-08-04 11:52 ` [PATCH, post-03/20 1/1] xfs: hook up inodegc to CPU dead notification Dave Chinner
2021-08-04 16:19 ` Darrick J. Wong
2021-08-04 21:48 ` Dave Chinner
2021-07-29 18:44 ` [PATCH 04/20] xfs: throttle inode inactivation queuing on memory reclaim Darrick J. Wong
2021-07-29 18:44 ` [PATCH 05/20] xfs: don't throttle memory reclaim trying to queue inactive inodes Darrick J. Wong
2021-07-29 18:44 ` [PATCH 06/20] xfs: throttle inodegc queuing on backlog Darrick J. Wong
2021-08-02 0:45 ` Dave Chinner
2021-08-02 1:30 ` Dave Chinner
2021-07-29 18:44 ` [PATCH 07/20] xfs: queue inodegc worker immediately when memory is tight Darrick J. Wong
2021-07-29 18:44 ` [PATCH 08/20] xfs: expose sysfs knob to control inode inactivation delay Darrick J. Wong
2021-07-29 18:44 ` [PATCH 09/20] xfs: reduce inactivation delay when free space is tight Darrick J. Wong
2021-07-29 18:44 ` [PATCH 10/20] xfs: reduce inactivation delay when quota are tight Darrick J. Wong
2021-07-29 18:44 ` [PATCH 11/20] xfs: reduce inactivation delay when realtime extents " Darrick J. Wong
2021-07-29 18:44 ` [PATCH 12/20] xfs: inactivate inodes any time we try to free speculative preallocations Darrick J. Wong
2021-07-29 18:45 ` [PATCH 13/20] xfs: flush inode inactivation work when compiling usage statistics Darrick J. Wong
2021-07-29 18:45 ` [PATCH 14/20] xfs: parallelize inode inactivation Darrick J. Wong
2021-08-02 0:55 ` Dave Chinner
2021-08-02 21:33 ` Darrick J. Wong [this message]
2021-07-29 18:45 ` [PATCH 15/20] xfs: reduce inactivation delay when AG free space are tight Darrick J. Wong
2021-07-29 18:45 ` [PATCH 16/20] xfs: queue inodegc worker immediately on backlog Darrick J. Wong
2021-07-29 18:45 ` [PATCH 17/20] xfs: don't run speculative preallocation gc when fs is frozen Darrick J. Wong
2021-07-29 18:45 ` [PATCH 18/20] xfs: scale speculative preallocation gc delay based on free space Darrick J. Wong
2021-07-29 18:45 ` [PATCH 19/20] xfs: use background worker pool when transactions can't get " Darrick J. Wong
2021-07-29 18:45 ` [PATCH 20/20] xfs: avoid buffer deadlocks when walking fs inodes Darrick J. Wong
2021-08-02 10:35 ` [PATCHSET v8 00/20] xfs: deferred inode inactivation Dave Chinner
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