From: Chandan Babu R <chandanrlinux@gmail.com>
To: Allison Henderson <allison.henderson@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH v24 11/11] xfs: Add helper function xfs_attr_leaf_addname
Date: Mon, 30 Aug 2021 19:47:50 +0530 [thread overview]
Message-ID: <8735qr9fu9.fsf@debian-BULLSEYE-live-builder-AMD64> (raw)
In-Reply-To: <20210824224434.968720-12-allison.henderson@oracle.com>
On 25 Aug 2021 at 04:14, Allison Henderson wrote:
> This patch adds a helper function xfs_attr_leaf_addname. While this
> does help to break down xfs_attr_set_iter, it does also hoist out some
> of the state management. This patch has been moved to the end of the
> clean up series for further discussion.
>
Looks good to me.
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
> Suggested-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
> ---
> fs/xfs/libxfs/xfs_attr.c | 110 +++++++++++++++++++++------------------
> fs/xfs/xfs_trace.h | 1 +
> 2 files changed, 61 insertions(+), 50 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index c3fdf232cd51..7150f0e051a0 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -284,6 +284,65 @@ xfs_attr_sf_addname(
> return -EAGAIN;
> }
>
> +STATIC int
> +xfs_attr_leaf_addname(
> + struct xfs_attr_item *attr)
> +{
> + struct xfs_da_args *args = attr->xattri_da_args;
> + struct xfs_inode *dp = args->dp;
> + int error;
> +
> + if (xfs_attr_is_leaf(dp)) {
> + error = xfs_attr_leaf_try_add(args, attr->xattri_leaf_bp);
> + if (error == -ENOSPC) {
> + error = xfs_attr3_leaf_to_node(args);
> + if (error)
> + return error;
> +
> + /*
> + * Finish any deferred work items and roll the
> + * transaction once more. The goal here is to call
> + * node_addname with the inode and transaction in the
> + * same state (inode locked and joined, transaction
> + * clean) no matter how we got to this step.
> + *
> + * At this point, we are still in XFS_DAS_UNINIT, but
> + * when we come back, we'll be a node, so we'll fall
> + * down into the node handling code below
> + */
> + trace_xfs_attr_set_iter_return(
> + attr->xattri_dela_state, args->dp);
> + return -EAGAIN;
> + }
> +
> + if (error)
> + return error;
> +
> + attr->xattri_dela_state = XFS_DAS_FOUND_LBLK;
> + } else {
> + error = xfs_attr_node_addname_find_attr(attr);
> + if (error)
> + return error;
> +
> + error = xfs_attr_node_addname(attr);
> + if (error)
> + return error;
> +
> + /*
> + * If addname was successful, and we dont need to alloc or
> + * remove anymore blks, we're done.
> + */
> + if (!args->rmtblkno &&
> + !(args->op_flags & XFS_DA_OP_RENAME))
> + return 0;
> +
> + attr->xattri_dela_state = XFS_DAS_FOUND_NBLK;
> + }
> +
> + trace_xfs_attr_leaf_addname_return(attr->xattri_dela_state, args->dp);
> + return -EAGAIN;
> +}
> +
> /*
> * Set the attribute specified in @args.
> * This routine is meant to function as a delayed operation, and may return
> @@ -319,57 +378,8 @@ xfs_attr_set_iter(
> attr->xattri_leaf_bp = NULL;
> }
>
> - if (xfs_attr_is_leaf(dp)) {
> - error = xfs_attr_leaf_try_add(args,
> - attr->xattri_leaf_bp);
> - if (error == -ENOSPC) {
> - error = xfs_attr3_leaf_to_node(args);
> - if (error)
> - return error;
> -
> - /*
> - * Finish any deferred work items and roll the
> - * transaction once more. The goal here is to
> - * call node_addname with the inode and
> - * transaction in the same state (inode locked
> - * and joined, transaction clean) no matter how
> - * we got to this step.
> - *
> - * At this point, we are still in
> - * XFS_DAS_UNINIT, but when we come back, we'll
> - * be a node, so we'll fall down into the node
> - * handling code below
> - */
> - trace_xfs_attr_set_iter_return(
> - attr->xattri_dela_state, args->dp);
> - return -EAGAIN;
> - } else if (error) {
> - return error;
> - }
> -
> - attr->xattri_dela_state = XFS_DAS_FOUND_LBLK;
> - } else {
> - error = xfs_attr_node_addname_find_attr(attr);
> - if (error)
> - return error;
> + return xfs_attr_leaf_addname(attr);
>
> - error = xfs_attr_node_addname(attr);
> - if (error)
> - return error;
> -
> - /*
> - * If addname was successful, and we dont need to alloc
> - * or remove anymore blks, we're done.
> - */
> - if (!args->rmtblkno &&
> - !(args->op_flags & XFS_DA_OP_RENAME))
> - return 0;
> -
> - attr->xattri_dela_state = XFS_DAS_FOUND_NBLK;
> - }
> - trace_xfs_attr_set_iter_return(attr->xattri_dela_state,
> - args->dp);
> - return -EAGAIN;
> case XFS_DAS_FOUND_LBLK:
> /*
> * If there was an out-of-line value, allocate the blocks we
> diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
> index 1033a95fbf8e..77a78b5b1a29 100644
> --- a/fs/xfs/xfs_trace.h
> +++ b/fs/xfs/xfs_trace.h
> @@ -4132,6 +4132,7 @@ DEFINE_EVENT(xfs_das_state_class, name, \
> TP_ARGS(das, ip))
> DEFINE_DAS_STATE_EVENT(xfs_attr_sf_addname_return);
> DEFINE_DAS_STATE_EVENT(xfs_attr_set_iter_return);
> +DEFINE_DAS_STATE_EVENT(xfs_attr_leaf_addname_return);
> DEFINE_DAS_STATE_EVENT(xfs_attr_node_addname_return);
> DEFINE_DAS_STATE_EVENT(xfs_attr_remove_iter_return);
> DEFINE_DAS_STATE_EVENT(xfs_attr_rmtval_remove_return);
--
chandan
next prev parent reply other threads:[~2021-08-30 14:17 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-24 22:44 [PATCH v24 00/11] Log Attribute Replay Allison Henderson
2021-08-24 22:44 ` [PATCH v24 01/11] xfs: Return from xfs_attr_set_iter if there are no more rmtblks to process Allison Henderson
2021-08-24 22:44 ` [PATCH v24 02/11] xfs: Capture buffers for delayed ops Allison Henderson
2021-08-27 11:33 ` Chandan Babu R
2021-08-31 18:03 ` Allison Henderson
2021-08-30 17:44 ` Darrick J. Wong
2021-08-31 17:50 ` Allison Henderson
2021-09-18 0:02 ` Darrick J. Wong
2021-08-24 22:44 ` [PATCH v24 03/11] xfs: Set up infrastructure for log atrribute replay Allison Henderson
2021-08-27 14:17 ` Chandan Babu R
2021-08-31 18:03 ` Allison Henderson
2021-08-31 0:48 ` Dave Chinner
2021-08-31 19:03 ` Allison Henderson
2021-08-31 21:52 ` Dave Chinner
2021-09-01 5:34 ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 04/11] xfs: Implement attr logging and replay Allison Henderson
2021-08-30 7:47 ` Chandan Babu R
2021-08-31 18:11 ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 05/11] RFC xfs: Skip flip flags for delayed attrs Allison Henderson
2021-08-30 10:15 ` Chandan Babu R
2021-08-31 18:11 ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 06/11] xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2021-08-30 10:27 ` Chandan Babu R
2021-08-31 18:12 ` Allison Henderson
2021-09-01 3:47 ` Dave Chinner
2021-09-01 5:34 ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 07/11] xfs: Remove unused xfs_attr_*_args Allison Henderson
2021-08-24 22:44 ` [PATCH v24 08/11] xfs: Add log attribute error tag Allison Henderson
2021-08-24 22:44 ` [PATCH v24 09/11] xfs: Add larp debug option Allison Henderson
2021-08-30 12:03 ` Chandan Babu R
2021-08-31 18:12 ` Allison Henderson
2021-08-24 22:44 ` [PATCH v24 10/11] xfs: Merge xfs_delattr_context into xfs_attr_item Allison Henderson
2021-08-24 22:44 ` [PATCH v24 11/11] xfs: Add helper function xfs_attr_leaf_addname Allison Henderson
2021-08-30 14:17 ` Chandan Babu R [this message]
2021-08-31 18:13 ` Allison Henderson
2021-08-31 0:20 ` [PATCH v24 00/11] Log Attribute Replay Dave Chinner
2021-08-31 18:27 ` Allison Henderson
2021-09-01 6:29 ` Dave Chinner
2021-09-01 7:30 ` [PATCH 0/5] xfs: various logged attribute fixes Dave Chinner
2021-09-01 7:30 ` [PATCH 1/5] xfs: fix fallthrough annotations in xfs_attr_set_iter() Dave Chinner
2021-09-01 7:30 ` [PATCH 2/5] xfs: fix flags passed to kvmalloc() by xfs_attri_init() Dave Chinner
2021-09-01 7:30 ` [PATCH 3/5] xfs: hide log iovec alignment constraints Dave Chinner
2021-09-01 7:30 ` [PATCH 4/5] xfs: fix attribute log iovec sizing Dave Chinner
2021-09-01 7:30 ` [PATCH 5/5] [RFC] xfs: don't commit the first deferred transaction without intents Dave Chinner
2021-09-01 21:43 ` [PATCH 0/5] xfs: various logged attribute fixes Allison Henderson
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