From: Brian Foster <bfoster@redhat.com>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 12/19] xfs: refactor xfs_bmap_add_extent_delay_real
Date: Tue, 19 Sep 2017 12:35:25 -0400 [thread overview]
Message-ID: <20170919163525.GJ3487@bfoster.bfoster> (raw)
In-Reply-To: <20170918152422.24345-13-hch@lst.de>
On Mon, Sep 18, 2017 at 08:24:15AM -0700, Christoph Hellwig wrote:
> Use xfs_iext_get_extent to find, and xfs_iext_update_extent to update
> entries in the in-core extent list. This isolates the function from
> the detailed layout of the extent list, and generally makes the code
> a lot more readable.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> fs/xfs/libxfs/xfs_bmap.c | 181 +++++++++++++++++++++++++----------------------
> 1 file changed, 95 insertions(+), 86 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index 4fb73c0aca05..731854cc8b58 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
...
> @@ -2064,12 +2082,12 @@ xfs_bmap_add_extent_delay_real(
> if (error)
> goto done;
> }
> - temp = xfs_bmap_worst_indlen(bma->ip, temp);
> - temp2 = xfs_bmap_worst_indlen(bma->ip, temp2);
> - diff = (int)(temp + temp2 -
> - (startblockval(PREV.br_startblock) -
> - (bma->cur ?
> - bma->cur->bc_private.b.allocated : 0)));
> +
> + da_new = startblockval(PREV.br_blockcount) +
> + startblockval(RIGHT.br_blockcount);
s/br_blockcount/br_startblock/ :)
Brian
> + diff = da_new - startblockval(old.br_startblock);
> + if (bma->cur)
> + diff += bma->cur->bc_private.b.allocated;
> if (diff > 0) {
> error = xfs_mod_fdblocks(bma->ip->i_mount,
> -((int64_t)diff), false);
> @@ -2078,16 +2096,7 @@ xfs_bmap_add_extent_delay_real(
> goto done;
> }
>
> - ep = xfs_iext_get_ext(ifp, bma->idx);
> - xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
> - trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
> - trace_xfs_bmap_pre_update(bma->ip, bma->idx + 2, state, _THIS_IP_);
> - xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, bma->idx + 2),
> - nullstartblock((int)temp2));
> - trace_xfs_bmap_post_update(bma->ip, bma->idx + 2, state, _THIS_IP_);
> -
> bma->idx++;
> - da_new = temp + temp2;
> break;
>
> case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
> --
> 2.14.1
>
> --
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next prev parent reply other threads:[~2017-09-19 16:35 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-18 15:24 refactor extent manipulation V3 Christoph Hellwig
2017-09-18 15:24 ` [PATCH 01/19] xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real Christoph Hellwig
2017-09-20 21:20 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 02/19] xfs: use xfs_iext_get_extent instead of open coding it Christoph Hellwig
2017-09-20 21:20 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 03/19] xfs: don't set XFS_BTCUR_BPRV_WASDEL in xfs_bunmapi Christoph Hellwig
2017-09-20 21:29 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 04/19] xfs: rename bno to end in __xfs_bunmapi Christoph Hellwig
2017-09-20 21:30 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 05/19] xfs: use xfs_bmap_del_extent_delay for the data fork as well Christoph Hellwig
2017-09-20 21:46 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 06/19] xfs: move some more code into xfs_bmap_del_extent_real Christoph Hellwig
2017-09-20 21:37 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 07/19] xfs: use correct state defines in xfs_bmap_del_extent_{cow,delay} Christoph Hellwig
2017-09-20 21:38 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 08/19] xfs: use the state defines in xfs_bmap_del_extent_real Christoph Hellwig
2017-09-20 21:41 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 09/19] xfs: refactor xfs_del_extent_real Christoph Hellwig
2017-09-20 21:42 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 10/19] xfs: refactor xfs_bmap_add_extent_hole_delay Christoph Hellwig
2017-09-20 21:44 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 11/19] xfs: refactor xfs_bmap_add_extent_hole_real Christoph Hellwig
2017-09-20 21:45 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 12/19] xfs: refactor xfs_bmap_add_extent_delay_real Christoph Hellwig
2017-09-19 16:35 ` Brian Foster [this message]
2017-09-21 13:27 ` Christoph Hellwig
2017-09-21 13:52 ` Brian Foster
2017-09-20 22:03 ` Darrick J. Wong
2017-09-21 13:28 ` Christoph Hellwig
2017-09-21 16:01 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 13/19] xfs: refactor delalloc accounting in xfs_bmap_add_extent_delay_real Christoph Hellwig
2017-09-19 16:35 ` Brian Foster
2017-09-20 22:12 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 14/19] xfs: refactor xfs_bmap_add_extent_unwritten_real Christoph Hellwig
2017-09-20 22:22 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 15/19] xfs: pass a struct xfs_bmbt_irec to xfs_bmbt_update Christoph Hellwig
2017-09-20 22:24 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 16/19] xfs: pass a struct xfs_bmbt_irec to xfs_bmbt_lookup_eq Christoph Hellwig
2017-09-20 22:27 ` Darrick J. Wong
2017-09-21 13:23 ` Christoph Hellwig
2017-09-21 15:34 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 17/19] xfs: replace xfs_bmbt_lookup_ge with xfs_bmbt_lookup_first Christoph Hellwig
2017-09-20 22:27 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 18/19] xfs: remove all xfs_bmbt_set_* helpers except for xfs_bmbt_set_all Christoph Hellwig
2017-09-20 22:27 ` Darrick J. Wong
2017-09-18 15:24 ` [PATCH 19/19] xfs: remove xfs_bmbt_get_state Christoph Hellwig
2017-09-20 22:28 ` Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2017-09-22 13:59 refactor extent manipulation V4 Christoph Hellwig
2017-09-22 13:59 ` [PATCH 12/19] xfs: refactor xfs_bmap_add_extent_delay_real Christoph Hellwig
2017-09-22 15:31 ` Brian Foster
2017-09-22 16:12 ` Darrick J. Wong
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