From: Dave Chinner <david@fromorbit.com>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 10/22] xfs: pass perags around in fsmap data dev functions
Date: Tue, 18 May 2021 11:00:55 +1000 [thread overview]
Message-ID: <20210518010055.GF2893@dread.disaster.area> (raw)
In-Reply-To: <20210512222323.GF8582@magnolia>
On Wed, May 12, 2021 at 03:23:23PM -0700, Darrick J. Wong wrote:
> On Thu, May 06, 2021 at 05:20:42PM +1000, Dave Chinner wrote:
> > From: Dave Chinner <dchinner@redhat.com>
> >
> > Needs a [from, to] ranged AG walk, and the perag to be stuffed into
> > the info structure for callouts to use.
> >
> > Signed-off-by: Dave Chinner <dchinner@redhat.com>
> > ---
> > fs/xfs/libxfs/xfs_ag.h | 14 ++++++--
> > fs/xfs/xfs_fsmap.c | 75 ++++++++++++++++++++++++++----------------
> > 2 files changed, 58 insertions(+), 31 deletions(-)
> >
> > diff --git a/fs/xfs/libxfs/xfs_ag.h b/fs/xfs/libxfs/xfs_ag.h
> > index 3fa88222dacd..bebbe1bfce27 100644
> > --- a/fs/xfs/libxfs/xfs_ag.h
> > +++ b/fs/xfs/libxfs/xfs_ag.h
> > @@ -116,14 +116,24 @@ void xfs_perag_put(struct xfs_perag *pag);
> >
> > /*
> > * Perag iteration APIs
> > + *
> > + * XXX: for_each_perag_range() usage really needs an iterator to clean up when
> > + * we terminate at end_agno because we may have taken a reference to the perag
> > + * beyond end_agno. RIght now callers have to be careful to catch and clean that
> > + * up themselves. This is not necessary for the callers of for_each_perag() and
> > + * for_each_perag_from() because they terminate at sb_agcount where there are
> > + * no perag structures in tree beyond end_agno.
>
> I think I'll wait and see what this becomes with the next iteration
> before RVBing things. The conversions look correct in this patch.
I wasn't planning on addressing this immediately (i.e. in this patch
set), so it's not actually going to change yet. I'll do this as a
standalone conversion in the next series of changes leading up to
active references...
-Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2021-05-18 1:01 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-06 7:20 [RFC 00/22] xfs: initial agnumber -> perag conversions for shrink Dave Chinner
2021-05-06 7:20 ` [PATCH 01/22] xfs: move xfs_perag_get/put to xfs_ag.[ch] Dave Chinner
2021-05-10 12:52 ` Brian Foster
2021-05-11 7:18 ` Dave Chinner
2021-05-10 22:28 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 02/22] xfs: prepare for moving perag definitions and support to libxfs Dave Chinner
2021-05-10 12:53 ` Brian Foster
2021-05-11 7:19 ` Dave Chinner
2021-05-06 7:20 ` [PATCH 03/22] xfs: move perag structure and setup to libxfs/xfs_ag.[ch] Dave Chinner
2021-05-10 22:26 ` Darrick J. Wong
2021-05-10 23:38 ` Dave Chinner
2021-05-06 7:20 ` [PATCH 04/22] xfs: make for_each_perag... a first class citizen Dave Chinner
2021-05-10 12:53 ` Brian Foster
2021-05-11 7:35 ` Dave Chinner
2021-05-11 12:29 ` Brian Foster
2021-05-11 21:33 ` Dave Chinner
2021-05-12 21:58 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 05/22] xfs: convert raw ag walks to use for_each_perag Dave Chinner
2021-05-10 12:54 ` Brian Foster
2021-05-06 7:20 ` [PATCH 06/22] xfs: convert xfs_iwalk to use perag references Dave Chinner
2021-05-10 13:41 ` Brian Foster
2021-05-12 22:08 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 07/22] xfs: convert secondary superblock walk to use perags Dave Chinner
2021-05-10 13:41 ` Brian Foster
2021-05-12 22:09 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 08/22] xfs: pass perags through to the busy extent code Dave Chinner
2021-05-11 12:29 ` Brian Foster
2021-05-12 22:13 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 09/22] xfs: push perags through the ag reservation callouts Dave Chinner
2021-05-11 12:29 ` Brian Foster
2021-05-13 0:29 ` Dave Chinner
2021-05-12 22:16 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 10/22] xfs: pass perags around in fsmap data dev functions Dave Chinner
2021-05-11 12:30 ` Brian Foster
2021-05-12 22:23 ` Darrick J. Wong
2021-05-18 1:00 ` Dave Chinner [this message]
2021-05-06 7:20 ` [PATCH 11/22] xfs: add a perag to the btree cursor Dave Chinner
2021-05-11 12:30 ` Brian Foster
2021-05-11 20:51 ` Darrick J. Wong
2021-05-11 21:52 ` Dave Chinner
2021-05-12 12:49 ` Brian Foster
2021-05-12 22:41 ` Darrick J. Wong
2021-05-12 22:40 ` Darrick J. Wong
2021-05-13 0:12 ` Dave Chinner
2021-05-13 0:55 ` Darrick J. Wong
2021-05-13 1:07 ` Dave Chinner
2021-05-13 3:49 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 12/22] xfs: convert rmap btree cursor to using a perag Dave Chinner
2021-05-11 12:30 ` Brian Foster
2021-05-12 22:45 ` Darrick J. Wong
2021-05-13 3:54 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 13/22] xfs: convert refcount btree cursor to use perags Dave Chinner
2021-05-11 12:30 ` Brian Foster
2021-05-12 22:47 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 14/22] xfs: convert allocbt cursors " Dave Chinner
2021-05-11 12:30 ` Brian Foster
2021-05-13 3:55 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 15/22] xfs: use perag for ialloc btree cursors Dave Chinner
2021-05-11 12:30 ` Brian Foster
2021-05-13 3:55 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 16/22] xfs: remove agno from btree cursor Dave Chinner
2021-05-11 12:34 ` Brian Foster
2021-05-11 22:02 ` Dave Chinner
2021-05-12 22:52 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 17/22] xfs: simplify xfs_dialloc_select_ag() return values Dave Chinner
2021-05-12 12:49 ` Brian Foster
2021-05-12 22:55 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 18/22] xfs: collapse AG selection for inode allocation Dave Chinner
2021-05-12 12:52 ` Brian Foster
2021-05-18 1:21 ` Dave Chinner
2021-05-12 23:11 ` Darrick J. Wong
2021-05-18 1:29 ` Dave Chinner
2021-05-06 7:20 ` [PATCH 19/22] xfs: get rid of xfs_dir_ialloc() Dave Chinner
2021-05-06 11:26 ` kernel test robot
2021-05-06 11:26 ` [RFC PATCH] xfs: xfs_dialloc_ag can be static kernel test robot
2021-05-12 12:52 ` [PATCH 19/22] xfs: get rid of xfs_dir_ialloc() Brian Foster
2021-05-12 23:19 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 20/22] xfs: inode allocation can use a single perag instance Dave Chinner
2021-05-12 12:52 ` Brian Foster
2021-05-12 23:19 ` Darrick J. Wong
2021-05-06 7:20 ` [PATCH 21/22] xfs: clean up and simplify xfs_dialloc() Dave Chinner
2021-05-12 21:49 ` Darrick J. Wong
2021-05-18 1:46 ` Dave Chinner
2021-05-06 7:20 ` [PATCH 22/22] xfs: use perag through unlink processing Dave Chinner
2021-05-12 21:37 ` Darrick J. Wong
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