From: Dave Chinner <david@fromorbit.com>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Chandan Babu R <chandan.babu@oracle.com>,
Christoph Hellwig <hch@lst.de>,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 06/17] xfs: prepare xfs_btree_cur for dynamic cursor heights
Date: Fri, 15 Oct 2021 09:49:53 +1100 [thread overview]
Message-ID: <20211014224953.GP2361455@dread.disaster.area> (raw)
In-Reply-To: <163424264796.756780.1894573242070893253.stgit@magnolia>
On Thu, Oct 14, 2021 at 01:17:28PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
>
> Split out the btree level information into a separate struct and put it
> at the end of the cursor structure as a VLA. Files with huge data forks
> (and in the future, the realtime rmap btree) will require the ability to
> support many more levels than a per-AG btree cursor, which means that
> we're going to create per-btree type cursor caches to conserve memory
> for the more common case.
>
> Note that a subsequent patch actually introduces dynamic cursor heights.
> This one merely rearranges the structure to prepare for that.
>
> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
> Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> ---
> fs/xfs/libxfs/xfs_alloc.c | 6 +-
> fs/xfs/libxfs/xfs_bmap.c | 10 +--
> fs/xfs/libxfs/xfs_btree.c | 168 +++++++++++++++++++++++----------------------
> fs/xfs/libxfs/xfs_btree.h | 33 +++++++--
> fs/xfs/scrub/bitmap.c | 22 +++---
> fs/xfs/scrub/bmap.c | 2 -
> fs/xfs/scrub/btree.c | 47 +++++++------
> fs/xfs/scrub/trace.c | 4 +
> fs/xfs/scrub/trace.h | 10 +--
> fs/xfs/xfs_super.c | 2 -
> fs/xfs/xfs_trace.h | 2 -
> 11 files changed, 167 insertions(+), 139 deletions(-)
LGTM.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2021-10-14 22:49 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-14 20:16 [PATCHSET v4 00/17] xfs: support dynamic btree cursor height Darrick J. Wong
2021-10-14 20:17 ` [PATCH 01/17] xfs: fix incorrect decoding in xchk_btree_cur_fsbno Darrick J. Wong
2021-10-14 22:48 ` Dave Chinner
2021-10-14 23:05 ` Darrick J. Wong
2021-10-14 23:17 ` Dave Chinner
2021-10-15 0:37 ` Darrick J. Wong
2021-10-15 0:42 ` [PATCH v4.1 " Darrick J. Wong
2021-10-18 22:26 ` Dave Chinner
2021-10-14 20:17 ` [PATCH 02/17] xfs: remove xfs_btree_cur.bc_blocklog Darrick J. Wong
2021-10-14 20:17 ` [PATCH 03/17] xfs: reduce the size of nr_ops for refcount btree cursors Darrick J. Wong
2021-10-14 20:17 ` [PATCH 04/17] xfs: don't track firstrec/firstkey separately in xchk_btree Darrick J. Wong
2021-10-14 20:17 ` [PATCH 05/17] xfs: dynamically allocate btree scrub context structure Darrick J. Wong
2021-10-14 22:48 ` Dave Chinner
2021-10-14 20:17 ` [PATCH 06/17] xfs: prepare xfs_btree_cur for dynamic cursor heights Darrick J. Wong
2021-10-14 22:49 ` Dave Chinner [this message]
2021-10-14 20:17 ` [PATCH 07/17] xfs: rearrange xfs_btree_cur fields for better packing Darrick J. Wong
2021-10-14 20:17 ` [PATCH 08/17] xfs: refactor btree cursor allocation function Darrick J. Wong
2021-10-14 20:17 ` [PATCH 09/17] xfs: encode the max btree height in the cursor Darrick J. Wong
2021-10-14 20:17 ` [PATCH 10/17] xfs: dynamically allocate cursors based on maxlevels Darrick J. Wong
2021-10-14 20:17 ` [PATCH 11/17] xfs: rename m_ag_maxlevels to m_allocbt_maxlevels Darrick J. Wong
2021-10-14 22:52 ` Dave Chinner
2021-10-15 0:44 ` Darrick J. Wong
2021-10-14 20:18 ` [PATCH 12/17] xfs: compute maximum AG btree height for critical reservation calculation Darrick J. Wong
2021-10-14 22:54 ` Dave Chinner
2021-10-15 0:44 ` Darrick J. Wong
2021-10-14 20:18 ` [PATCH 13/17] xfs: clean up xfs_btree_{calc_size,compute_maxlevels} Darrick J. Wong
2021-10-14 22:58 ` Dave Chinner
2021-10-14 20:18 ` [PATCH 14/17] xfs: compute the maximum height of the rmap btree when reflink enabled Darrick J. Wong
2021-10-14 23:03 ` Dave Chinner
2021-10-15 0:48 ` Darrick J. Wong
2021-10-14 20:18 ` [PATCH 15/17] xfs: kill XFS_BTREE_MAXLEVELS Darrick J. Wong
2021-10-14 20:18 ` [PATCH 16/17] xfs: compute absolute maximum nlevels for each btree type Darrick J. Wong
2021-10-14 23:08 ` Dave Chinner
2021-10-14 20:18 ` [PATCH 17/17] xfs: use separate btree cursor cache " Darrick J. Wong
2021-10-14 23:11 ` Dave Chinner
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