From: "Darrick J. Wong" <djwong@kernel.org>
To: Allison Henderson <allison.henderson@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH v15 08/22] xfs: Hoist xfs_attr_node_addname
Date: Mon, 1 Mar 2021 10:05:19 -0800 [thread overview]
Message-ID: <20210301180519.GH7272@magnolia> (raw)
In-Reply-To: <20210218165348.4754-9-allison.henderson@oracle.com>
On Thu, Feb 18, 2021 at 09:53:34AM -0700, Allison Henderson wrote:
> This patch hoists the later half of xfs_attr_node_addname into
> the calling function. We do this because it is this area that
> will need the most state management, and we want to keep such
> code in the same scope as much as possible
>
> Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Simple enough transplant,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
--D
> ---
> fs/xfs/libxfs/xfs_attr.c | 165 ++++++++++++++++++++++++-----------------------
> 1 file changed, 83 insertions(+), 82 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
> index 4333b61..19a532a 100644
> --- a/fs/xfs/libxfs/xfs_attr.c
> +++ b/fs/xfs/libxfs/xfs_attr.c
> @@ -52,6 +52,7 @@ STATIC int xfs_attr_leaf_hasname(struct xfs_da_args *args, struct xfs_buf **bp);
> * Internal routines when attribute list is more than one block.
> */
> STATIC int xfs_attr_node_get(xfs_da_args_t *args);
> +STATIC void xfs_attr_restore_rmt_blk(struct xfs_da_args *args);
> STATIC int xfs_attr_node_addname(struct xfs_da_args *args,
> struct xfs_da_state *state);
> STATIC int xfs_attr_node_addname_find_attr(struct xfs_da_args *args,
> @@ -268,8 +269,9 @@ xfs_attr_set_args(
> struct xfs_da_args *args)
> {
> struct xfs_inode *dp = args->dp;
> - struct xfs_da_state *state;
> - int error;
> + struct xfs_da_state *state = NULL;
> + int error = 0;
> + int retval = 0;
>
> /*
> * If the attribute list is already in leaf format, jump straight to
> @@ -320,8 +322,82 @@ xfs_attr_set_args(
> return error;
> error = xfs_attr_node_addname(args, state);
> } while (error == -EAGAIN);
> + if (error)
> + return error;
> +
> + /*
> + * Commit the leaf addition or btree split and start the next
> + * trans in the chain.
> + */
> + error = xfs_trans_roll_inode(&args->trans, dp);
> + if (error)
> + goto out;
> +
> + /*
> + * If there was an out-of-line value, allocate the blocks we
> + * identified for its storage and copy the value. This is done
> + * after we create the attribute so that we don't overflow the
> + * maximum size of a transaction and/or hit a deadlock.
> + */
> + if (args->rmtblkno > 0) {
> + error = xfs_attr_rmtval_set(args);
> + if (error)
> + return error;
> + }
> +
> + if (!(args->op_flags & XFS_DA_OP_RENAME)) {
> + /*
> + * Added a "remote" value, just clear the incomplete flag.
> + */
> + if (args->rmtblkno > 0)
> + error = xfs_attr3_leaf_clearflag(args);
> + retval = error;
> + goto out;
> + }
> +
> + /*
> + * If this is an atomic rename operation, we must "flip" the incomplete
> + * flags on the "new" and "old" attribute/value pairs so that one
> + * disappears and one appears atomically. Then we must remove the "old"
> + * attribute/value pair.
> + *
> + * In a separate transaction, set the incomplete flag on the "old" attr
> + * and clear the incomplete flag on the "new" attr.
> + */
> + error = xfs_attr3_leaf_flipflags(args);
> + if (error)
> + goto out;
> + /*
> + * Commit the flag value change and start the next trans in series
> + */
> + error = xfs_trans_roll_inode(&args->trans, args->dp);
> + if (error)
> + goto out;
> +
> + /*
> + * Dismantle the "old" attribute/value pair by removing a "remote" value
> + * (if it exists).
> + */
> + xfs_attr_restore_rmt_blk(args);
> +
> + if (args->rmtblkno) {
> + error = xfs_attr_rmtval_invalidate(args);
> + if (error)
> + return error;
> +
> + error = xfs_attr_rmtval_remove(args);
> + if (error)
> + return error;
> + }
> +
> + error = xfs_attr_node_addname_work(args);
> +out:
> + if (state)
> + xfs_da_state_free(state);
> + if (error)
> + return error;
> + return retval;
>
> - return error;
> }
>
> /*
> @@ -955,7 +1031,7 @@ xfs_attr_node_addname(
> {
> struct xfs_da_state_blk *blk;
> struct xfs_inode *dp;
> - int retval, error;
> + int error;
>
> trace_xfs_attr_node_addname(args);
>
> @@ -963,8 +1039,8 @@ xfs_attr_node_addname(
> blk = &state->path.blk[state->path.active-1];
> ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
>
> - retval = xfs_attr3_leaf_add(blk->bp, state->args);
> - if (retval == -ENOSPC) {
> + error = xfs_attr3_leaf_add(blk->bp, state->args);
> + if (error == -ENOSPC) {
> if (state->path.active == 1) {
> /*
> * Its really a single leaf node, but it had
> @@ -1010,85 +1086,10 @@ xfs_attr_node_addname(
> xfs_da3_fixhashpath(state, &state->path);
> }
>
> - /*
> - * Kill the state structure, we're done with it and need to
> - * allow the buffers to come back later.
> - */
> - xfs_da_state_free(state);
> - state = NULL;
> -
> - /*
> - * Commit the leaf addition or btree split and start the next
> - * trans in the chain.
> - */
> - error = xfs_trans_roll_inode(&args->trans, dp);
> - if (error)
> - goto out;
> -
> - /*
> - * If there was an out-of-line value, allocate the blocks we
> - * identified for its storage and copy the value. This is done
> - * after we create the attribute so that we don't overflow the
> - * maximum size of a transaction and/or hit a deadlock.
> - */
> - if (args->rmtblkno > 0) {
> - error = xfs_attr_rmtval_set(args);
> - if (error)
> - return error;
> - }
> -
> - if (!(args->op_flags & XFS_DA_OP_RENAME)) {
> - /*
> - * Added a "remote" value, just clear the incomplete flag.
> - */
> - if (args->rmtblkno > 0)
> - error = xfs_attr3_leaf_clearflag(args);
> - retval = error;
> - goto out;
> - }
> -
> - /*
> - * If this is an atomic rename operation, we must "flip" the incomplete
> - * flags on the "new" and "old" attribute/value pairs so that one
> - * disappears and one appears atomically. Then we must remove the "old"
> - * attribute/value pair.
> - *
> - * In a separate transaction, set the incomplete flag on the "old" attr
> - * and clear the incomplete flag on the "new" attr.
> - */
> - error = xfs_attr3_leaf_flipflags(args);
> - if (error)
> - goto out;
> - /*
> - * Commit the flag value change and start the next trans in series
> - */
> - error = xfs_trans_roll_inode(&args->trans, args->dp);
> - if (error)
> - goto out;
> -
> - /*
> - * Dismantle the "old" attribute/value pair by removing a "remote" value
> - * (if it exists).
> - */
> - xfs_attr_restore_rmt_blk(args);
> -
> - if (args->rmtblkno) {
> - error = xfs_attr_rmtval_invalidate(args);
> - if (error)
> - return error;
> -
> - error = xfs_attr_rmtval_remove(args);
> - if (error)
> - return error;
> - }
> -
> - error = xfs_attr_node_addname_work(args);
> out:
> if (state)
> xfs_da_state_free(state);
> - if (error)
> - return error;
> - return retval;
> + return error;
> }
>
>
> --
> 2.7.4
>
next prev parent reply other threads:[~2021-03-01 20:26 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-18 16:53 [PATCH v15 00/22] xfs: Delayed Attributes Allison Henderson
2021-02-18 16:53 ` [PATCH v15 01/22] xfs: Add helper xfs_attr_node_remove_step Allison Henderson
2021-02-24 15:03 ` Brian Foster
2021-02-25 6:17 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 02/22] xfs: Add xfs_attr_node_remove_cleanup Allison Henderson
2021-02-24 15:03 ` Brian Foster
2021-02-25 6:17 ` Allison Henderson
2021-02-26 3:00 ` Darrick J. Wong
2021-02-27 0:48 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 03/22] xfs: Hoist transaction handling in xfs_attr_node_remove_step Allison Henderson
2021-02-24 15:04 ` Brian Foster
2021-02-25 6:18 ` Allison Henderson
2021-02-26 3:02 ` Darrick J. Wong
2021-02-27 0:48 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 04/22] xfs: Hoist xfs_attr_set_shortform Allison Henderson
2021-02-24 15:04 ` Brian Foster
2021-02-25 6:18 ` Allison Henderson
2021-02-26 3:03 ` Darrick J. Wong
2021-02-27 0:48 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 05/22] xfs: Add helper xfs_attr_set_fmt Allison Henderson
2021-02-24 15:04 ` Brian Foster
2021-02-25 6:18 ` Allison Henderson
2021-02-26 3:07 ` Darrick J. Wong
2021-02-27 0:49 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 06/22] xfs: Separate xfs_attr_node_addname and xfs_attr_node_addname_work Allison Henderson
2021-02-24 15:04 ` Brian Foster
2021-02-25 6:18 ` Allison Henderson
2021-02-26 4:02 ` Darrick J. Wong
2021-02-27 0:54 ` Allison Henderson
2021-03-01 18:00 ` Darrick J. Wong
2021-03-02 8:26 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 07/22] xfs: Add helper xfs_attr_node_addname_find_attr Allison Henderson
2021-02-24 15:04 ` Brian Foster
2021-02-25 6:18 ` Allison Henderson
2021-02-26 4:06 ` Darrick J. Wong
2021-02-27 0:54 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 08/22] xfs: Hoist xfs_attr_node_addname Allison Henderson
2021-02-24 18:42 ` Brian Foster
2021-02-25 6:19 ` Allison Henderson
2021-03-01 18:05 ` Darrick J. Wong [this message]
2021-03-02 8:26 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 09/22] xfs: Hoist xfs_attr_leaf_addname Allison Henderson
2021-02-24 18:42 ` Brian Foster
2021-02-25 6:19 ` Allison Henderson
2021-02-25 14:20 ` Brian Foster
2021-03-01 18:19 ` Darrick J. Wong
2021-03-02 8:26 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 10/22] xfs: Hoist node transaction handling Allison Henderson
2021-02-24 18:43 ` Brian Foster
2021-02-25 6:20 ` Allison Henderson
2021-03-01 18:20 ` Darrick J. Wong
2021-03-02 8:26 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 11/22] xfs: Add delay ready attr remove routines Allison Henderson
2021-02-24 18:45 ` Brian Foster
2021-02-25 7:01 ` Allison Henderson
2021-02-25 14:22 ` Brian Foster
2021-02-25 22:28 ` Allison Henderson
2021-02-28 15:39 ` Brian Foster
2021-03-02 8:26 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 12/22] xfs: Add delay ready attr set routines Allison Henderson
2021-03-02 1:39 ` Darrick J. Wong
2021-02-18 16:53 ` [PATCH v15 13/22] xfs: Add state machine tracepoints Allison Henderson
2021-02-26 5:06 ` Darrick J. Wong
2021-02-27 0:57 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 14/22] xfs: Rename __xfs_attr_rmtval_remove Allison Henderson
2021-02-18 16:53 ` [PATCH v15 15/22] xfs: Handle krealloc errors in xlog_recover_add_to_cont_trans Allison Henderson
2021-02-26 5:06 ` Darrick J. Wong
2021-02-27 0:57 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 16/22] xfs: Set up infastructure for deferred attribute operations Allison Henderson
2021-02-26 4:58 ` Darrick J. Wong
2021-02-27 0:56 ` Allison Henderson
2021-03-02 7:13 ` Allison Henderson
2021-03-03 11:50 ` Brian Foster
2021-02-18 16:53 ` [PATCH v15 17/22] xfs: Skip flip flags for delayed attrs Allison Henderson
2021-02-26 5:02 ` Darrick J. Wong
2021-02-27 0:56 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 18/22] xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Allison Henderson
2021-02-26 5:00 ` Darrick J. Wong
2021-02-27 0:57 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 19/22] xfs: Remove unused xfs_attr_*_args Allison Henderson
2021-02-26 4:58 ` Darrick J. Wong
2021-02-27 0:57 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 20/22] xfs: Add delayed attributes error tag Allison Henderson
2021-02-18 16:53 ` [PATCH v15 21/22] xfs: Add delattr mount option Allison Henderson
2021-02-26 4:29 ` Darrick J. Wong
2021-02-27 0:55 ` Allison Henderson
2021-02-18 16:53 ` [PATCH v15 22/22] xfs: Merge xfs_delattr_context into xfs_attr_item Allison Henderson
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