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From: Allison Collins <allison.henderson@oracle.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH v7 07/19] xfs: Factor out xfs_attr_leaf_addname helper
Date: Sat, 22 Feb 2020 19:05:59 -0700	[thread overview]
Message-ID: <20200223020611.1802-8-allison.henderson@oracle.com> (raw)
In-Reply-To: <20200223020611.1802-1-allison.henderson@oracle.com>

Factor out new helper function xfs_attr_leaf_try_add. Because new delayed attribute
routines cannot roll transactions, we carve off the parts of xfs_attr_leaf_addname
that we can use, and move the commit into the calling function.

Signed-off-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
---
 fs/xfs/libxfs/xfs_attr.c | 88 +++++++++++++++++++++++++++++++-----------------
 1 file changed, 57 insertions(+), 31 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index cf0cba7..b2f0780 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -305,10 +305,30 @@ xfs_attr_set_args(
 		}
 	}
 
-	if (xfs_bmap_one_block(dp, XFS_ATTR_FORK))
+	if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) {
 		error = xfs_attr_leaf_addname(args);
-	else
-		error = xfs_attr_node_addname(args);
+		if (error != -ENOSPC)
+			return error;
+
+		/*
+		 * Commit that transaction so that the node_addname()
+		 * call can manage its own transactions.
+		 */
+		error = xfs_defer_finish(&args->trans);
+		if (error)
+			return error;
+
+		/*
+		 * Commit the current trans (including the inode) and
+		 * start a new one.
+		 */
+		error = xfs_trans_roll_inode(&args->trans, dp);
+		if (error)
+			return error;
+
+	}
+
+	error = xfs_attr_node_addname(args);
 	return error;
 }
 
@@ -620,20 +640,21 @@ xfs_attr_shortform_addname(xfs_da_args_t *args)
  *========================================================================*/
 
 /*
- * Add a name to the leaf attribute list structure
+ * Tries to add an attribute to an inode in leaf form
  *
- * This leaf block cannot have a "remote" value, we only call this routine
- * if bmap_one_block() says there is only one block (ie: no remote blks).
+ * This function is meant to execute as part of a delayed operation and leaves
+ * the transaction handling to the caller.  On success the attribute is added
+ * and the inode and transaction are left dirty.  If there is not enough space,
+ * the attr data is converted to node format and -ENOSPC is returned. Caller is
+ * responsible for handling the dirty inode and transaction or adding the attr
+ * in node format.
  */
 STATIC int
-xfs_attr_leaf_addname(
-	struct xfs_da_args	*args)
+xfs_attr_leaf_try_add(
+	struct xfs_da_args	*args,
+	struct xfs_buf		*bp)
 {
-	struct xfs_buf		*bp;
-	int			retval, error, forkoff;
-	struct xfs_inode	*dp = args->dp;
-
-	trace_xfs_attr_leaf_addname(args);
+	int			retval, error;
 
 	/*
 	 * Look up the given attribute in the leaf block.  Figure out if
@@ -679,31 +700,36 @@ xfs_attr_leaf_addname(
 	retval = xfs_attr3_leaf_add(bp, args);
 	if (retval == -ENOSPC) {
 		/*
-		 * Promote the attribute list to the Btree format, then
-		 * Commit that transaction so that the node_addname() call
-		 * can manage its own transactions.
+		 * Promote the attribute list to the Btree format.
+		 * Unless an error occurs, retain the -ENOSPC retval
 		 */
 		error = xfs_attr3_leaf_to_node(args);
 		if (error)
 			return error;
-		error = xfs_defer_finish(&args->trans);
-		if (error)
-			return error;
+	}
+	return retval;
+}
 
-		/*
-		 * Commit the current trans (including the inode) and start
-		 * a new one.
-		 */
-		error = xfs_trans_roll_inode(&args->trans, dp);
-		if (error)
-			return error;
 
-		/*
-		 * Fob the whole rest of the problem off on the Btree code.
-		 */
-		error = xfs_attr_node_addname(args);
+/*
+ * Add a name to the leaf attribute list structure
+ *
+ * This leaf block cannot have a "remote" value, we only call this routine
+ * if bmap_one_block() says there is only one block (ie: no remote blks).
+ */
+STATIC int
+xfs_attr_leaf_addname(
+	struct xfs_da_args	*args)
+{
+	int			error, forkoff;
+	struct xfs_buf		*bp = NULL;
+	struct xfs_inode	*dp = args->dp;
+
+	trace_xfs_attr_leaf_addname(args);
+
+	error = xfs_attr_leaf_try_add(args, bp);
+	if (error)
 		return error;
-	}
 
 	/*
 	 * Commit the transaction that added the attr name so that
-- 
2.7.4


  parent reply	other threads:[~2020-02-23  2:06 UTC|newest]

Thread overview: 135+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-23  2:05 [PATCH v7 00/19] xfs: Delayed Ready Attrs Allison Collins
2020-02-23  2:05 ` [PATCH v7 01/19] xfs: Replace attribute parameters with struct xfs_name Allison Collins
2020-02-23  9:34   ` Amir Goldstein
2020-02-23 16:03     ` Allison Collins
2020-02-25  0:49       ` Dave Chinner
2020-02-24 12:08   ` Chandan Rajendra
2020-02-24 16:25     ` Allison Collins
2020-02-24 13:06   ` Brian Foster
2020-02-24 16:25     ` Allison Collins
2020-02-23  2:05 ` [PATCH v7 02/19] xfs: Embed struct xfs_name in xfs_da_args Allison Collins
2020-02-23 11:54   ` Amir Goldstein
2020-02-23 16:51     ` Allison Collins
2020-02-24  6:50       ` Amir Goldstein
2020-02-24  7:36         ` Allison Collins
2020-02-24  7:43           ` Amir Goldstein
2020-02-25  0:57   ` Dave Chinner
2020-02-25  2:00     ` Allison Collins
2020-02-25  4:06       ` Dave Chinner
2020-02-25  4:19         ` Allison Collins
2020-02-25  4:27           ` Darrick J. Wong
2020-02-25  6:07             ` Allison Collins
2020-02-25  6:30               ` Dave Chinner
2020-02-25 17:21             ` Christoph Hellwig
2020-02-25  6:56   ` Chandan Rajendra
2020-02-25 23:26     ` Allison Collins
2020-02-23  2:05 ` [PATCH v7 03/19] xfs: Add xfs_has_attr and subroutines Allison Collins
2020-02-23 12:20   ` Amir Goldstein
2020-02-23 17:28     ` Allison Collins
2020-02-24  6:58       ` Amir Goldstein
2020-02-25  6:26     ` Dave Chinner
2020-02-25  6:43       ` Amir Goldstein
2020-02-25 22:27         ` Dave Chinner
2020-02-24 13:08   ` Brian Foster
2020-02-24 21:18     ` Allison Collins
2020-02-25 13:25       ` Brian Foster
2020-02-26  2:31         ` Allison Collins
2020-02-25  9:49   ` Chandan Rajendra
2020-02-25 10:15     ` Chandan Rajendra
2020-02-26  2:19       ` Allison Collins
2020-02-26  2:18     ` Allison Collins
2020-02-23  2:05 ` [PATCH v7 04/19] xfs: Check for -ENOATTR or -EEXIST Allison Collins
2020-02-23 12:25   ` Amir Goldstein
2020-02-23 17:33     ` Allison Collins
2020-02-24 13:08   ` Brian Foster
2020-02-24 21:18     ` Allison Collins
2020-02-23  2:05 ` [PATCH v7 05/19] xfs: Factor out new helper functions xfs_attr_rmtval_set Allison Collins
2020-02-25 12:53   ` Chandan Rajendra
2020-02-26  2:20     ` Allison Collins
2020-02-23  2:05 ` [PATCH v7 06/19] xfs: Factor out trans handling in xfs_attr3_leaf_flipflags Allison Collins
2020-02-23 12:30   ` Amir Goldstein
2020-02-23 17:36     ` Allison Collins
2020-02-28  4:56   ` Chandan Rajendra
2020-02-23  2:05 ` Allison Collins [this message]
2020-02-23 12:42   ` [PATCH v7 07/19] xfs: Factor out xfs_attr_leaf_addname helper Amir Goldstein
2020-02-23 18:38     ` Allison Collins
2020-02-24  6:38       ` Amir Goldstein
2020-02-24  7:09         ` Allison Collins
2020-02-24  7:27           ` Amir Goldstein
2020-02-25  6:42   ` Dave Chinner
2020-02-25 13:26     ` Brian Foster
2020-02-25 23:26     ` Allison Collins
2020-02-28  6:51   ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 08/19] xfs: Refactor xfs_attr_try_sf_addname Allison Collins
2020-02-23 13:04   ` Amir Goldstein
2020-02-23 17:51     ` Allison Collins
2020-02-24 13:08   ` Brian Foster
2020-02-24 21:19     ` Allison Collins
2020-02-28  7:42   ` Chandan Rajendra
2020-02-28 18:14     ` Allison Collins
2020-02-23  2:06 ` [PATCH v7 09/19] xfs: Factor out trans roll from xfs_attr3_leaf_setflag Allison Collins
2020-02-28  7:59   ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 10/19] xfs: Factor out xfs_attr_rmtval_invalidate Allison Collins
2020-02-28 10:42   ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 11/19] xfs: Factor out trans roll in xfs_attr3_leaf_clearflag Allison Collins
2020-02-28 10:56   ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 12/19] xfs: Add helper function xfs_attr_rmtval_unmap Allison Collins
2020-02-24 13:40   ` Brian Foster
2020-02-24 21:44     ` Allison Collins
2020-02-25 13:27       ` Brian Foster
2020-02-26  3:29         ` Allison Collins
2020-02-26 13:47           ` Brian Foster
2020-02-25  7:21   ` Dave Chinner
2020-02-25 23:27     ` Allison Collins
2020-02-28 14:22   ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 13/19] xfs: Add delay ready attr remove routines Allison Collins
2020-02-24 15:25   ` Brian Foster
2020-02-24 17:03     ` Brian Foster
2020-02-24 23:14     ` Allison Collins
2020-02-24 23:56       ` Darrick J. Wong
2020-02-25 13:34       ` Brian Foster
2020-02-26  5:36         ` Allison Collins
2020-02-26 13:48           ` Brian Foster
2020-02-26 19:23             ` Allison Collins
2020-02-25  8:57   ` Dave Chinner
2020-02-26  0:57     ` Allison Collins
2020-02-26 22:34       ` Dave Chinner
2020-02-27  4:18         ` Allison Collins
2020-03-03  5:03   ` Chandan Rajendra
2020-03-03  5:40     ` Allison Collins
2020-02-23  2:06 ` [PATCH v7 14/19] xfs: Add delay ready attr set routines Allison Collins
2020-03-03 13:41   ` Chandan Rajendra
2020-03-03 17:07     ` Allison Collins
2020-02-23  2:06 ` [PATCH v7 15/19] xfs: Add helper function xfs_attr_node_shrink Allison Collins
2020-02-23 13:22   ` Amir Goldstein
2020-02-23 18:41     ` Allison Collins
2020-02-25  9:05   ` Dave Chinner
2020-02-26  1:48     ` Allison Collins
2020-02-23  2:06 ` [PATCH v7 16/19] xfs: Simplify xfs_attr_set_iter Allison Collins
2020-02-23 13:26   ` Amir Goldstein
2020-02-23 18:42     ` Allison Collins
2020-02-25  9:21   ` Dave Chinner
2020-02-26  2:13     ` Allison Collins
2020-02-26 22:39       ` Dave Chinner
2020-03-04  4:30   ` Chandan Rajendra
2020-03-04 17:04     ` Allison Collins
2020-03-05  3:39       ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 17/19] xfs: Add helper function xfs_attr_leaf_mark_incomplete Allison Collins
2020-02-23 13:47   ` Amir Goldstein
2020-02-23 18:43     ` Allison Collins
2020-02-25  9:31   ` Dave Chinner
2020-02-26  2:17     ` Allison Collins
2020-03-04  4:37   ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 18/19] xfs: Add remote block helper functions Allison Collins
2020-02-23 13:45   ` Amir Goldstein
2020-03-04  4:59   ` Chandan Rajendra
2020-02-23  2:06 ` [PATCH v7 19/19] xfs: Remove xfs_attr_rmtval_remove Allison Collins
2020-02-23 13:54   ` Amir Goldstein
2020-02-23 18:50     ` Allison Collins
2020-02-23  7:55 ` [PATCH v7 00/19] xfs: Delayed Ready Attrs Amir Goldstein
2020-02-23 16:02   ` Allison Collins
2020-02-24  6:30     ` Amir Goldstein
2020-02-24 16:23       ` Allison Collins
2020-02-25  5:53         ` Amir Goldstein
2020-02-24  8:31   ` Chandan Rajendra
2020-02-25  9:52   ` Dave Chinner

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