From: Brian Foster <bfoster@redhat.com>
To: Allison Collins <allison.henderson@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH v10 14/25] xfs: Remove xfs_trans_roll in xfs_attr_node_removename
Date: Wed, 8 Jul 2020 08:42:08 -0400 [thread overview]
Message-ID: <20200708124208.GB53550@bfoster> (raw)
In-Reply-To: <20200625233018.14585-15-allison.henderson@oracle.com>
On Thu, Jun 25, 2020 at 04:30:07PM -0700, Allison Collins wrote:
> The xfs_trans_roll in _removename is not needed because invalidating
> blocks is an incore-only change. This is analogous to the non-remote
> remove case where an entry is removed and a potential dabtree join
> occurs under the same transaction.
>
> Signed-off-by: Allison Collins <allison.henderson@oracle.com>
> ---
Ok, but I think we should be a bit more descriptive in the commit log so
the reasoning is available for historical reference. For example:
"A transaction roll is not necessary immediately after setting the
INCOMPLETE flag when removing a node xattr entry with remote value
blocks. The remote block invalidation that immediately follows setting
the flag is an in-core only change. The next step after that is to start
unmapping the remote blocks from the attr fork, but the xattr remove
transaction reservation includes reservation for full tree splits of the
dabtree and bmap tree. The remote block unmap code will roll the
transaction as extents are unmapped and freed."
With something like that in place:
Reviewed-by: Brian Foster <bfoster@redhat.com>
> fs/xfs/libxfs/xfs_attr.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index 1a78023..f1becca 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -1148,10 +1148,6 @@ xfs_attr_node_removename(
> if (error)
> goto out;
>
> - error = xfs_trans_roll_inode(&args->trans, args->dp);
> - if (error)
> - goto out;
> -
> error = xfs_attr_rmtval_invalidate(args);
> if (error)
> return error;
> --
> 2.7.4
>
next prev parent reply other threads:[~2020-07-08 12:42 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-25 23:29 [PATCH v10 00/25] xfs: Delay Ready Attributes Allison Collins
2020-06-25 23:29 ` [PATCH v10 01/25] xfs: Add xfs_has_attr and subroutines Allison Collins
2020-06-25 23:29 ` [PATCH v10 02/25] xfs: Check for -ENOATTR or -EEXIST Allison Collins
2020-06-25 23:29 ` [PATCH v10 03/25] xfs: Factor out new helper functions xfs_attr_rmtval_set Allison Collins
2020-06-25 23:29 ` [PATCH v10 04/25] xfs: Pull up trans handling in xfs_attr3_leaf_flipflags Allison Collins
2020-06-25 23:29 ` [PATCH v10 05/25] xfs: Split apart xfs_attr_leaf_addname Allison Collins
2020-06-25 23:29 ` [PATCH v10 06/25] xfs: Refactor xfs_attr_try_sf_addname Allison Collins
2020-06-25 23:30 ` [PATCH v10 07/25] xfs: Pull up trans roll from xfs_attr3_leaf_setflag Allison Collins
2020-06-25 23:30 ` [PATCH v10 08/25] xfs: Factor out xfs_attr_rmtval_invalidate Allison Collins
2020-06-25 23:30 ` [PATCH v10 09/25] xfs: Pull up trans roll in xfs_attr3_leaf_clearflag Allison Collins
2020-06-25 23:30 ` [PATCH v10 10/25] xfs: Refactor xfs_attr_rmtval_remove Allison Collins
2020-06-25 23:30 ` [PATCH v10 11/25] xfs: Pull up xfs_attr_rmtval_invalidate Allison Collins
2020-06-25 23:30 ` [PATCH v10 12/25] xfs: Add helper function xfs_attr_node_shrink Allison Collins
2020-06-25 23:30 ` [PATCH v10 13/25] xfs: Remove unneeded xfs_trans_roll_inode calls Allison Collins
2020-07-08 12:41 ` Brian Foster
2020-07-09 22:01 ` Allison Collins
2020-06-25 23:30 ` [PATCH v10 14/25] xfs: Remove xfs_trans_roll in xfs_attr_node_removename Allison Collins
2020-07-08 12:42 ` Brian Foster [this message]
2020-07-09 22:01 ` Allison Collins
2020-06-25 23:30 ` [PATCH v10 15/25] xfs: Add helpers xfs_attr_is_shortform and xfs_attr_set_shortform Allison Collins
2020-06-25 23:30 ` [PATCH v10 16/25] xfs: Add helper function xfs_attr_leaf_mark_incomplete Allison Collins
2020-06-25 23:30 ` [PATCH v10 17/25] xfs: Add remote block helper functions Allison Collins
2020-06-25 23:30 ` [PATCH v10 18/25] xfs: Add helper function xfs_attr_node_removename_setup Allison Collins
2020-06-25 23:30 ` [PATCH v10 19/25] xfs: Add helper function xfs_attr_node_removename_rmt Allison Collins
2020-06-25 23:30 ` [PATCH v10 20/25] xfs: Simplify xfs_attr_leaf_addname Allison Collins
2020-06-25 23:30 ` [PATCH v10 21/25] xfs: Simplify xfs_attr_node_addname Allison Collins
2020-06-25 23:30 ` [PATCH v10 22/25] xfs: Lift -ENOSPC handler from xfs_attr_leaf_addname Allison Collins
2020-06-25 23:30 ` [PATCH v10 23/25] xfs: Add delay ready attr remove routines Allison Collins
2020-07-09 13:24 ` Brian Foster
2020-07-09 18:04 ` Darrick J. Wong
2020-07-10 6:22 ` Allison Collins
2020-07-13 13:36 ` Brian Foster
2020-07-09 22:02 ` Allison Collins
2020-07-13 13:58 ` Brian Foster
2020-07-15 5:04 ` Allison Collins
2020-06-25 23:30 ` [PATCH v10 24/25] xfs: Add delay ready attr set routines Allison Collins
2020-06-25 23:30 ` [PATCH v10 25/25] xfs: Rename __xfs_attr_rmtval_remove Allison Collins
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