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From: Dave Chinner <david@fromorbit.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH 2/3] xfs: move remote attr retrieval into xfs_attr3_leaf_getvalue
Date: Wed, 28 Aug 2019 14:23:49 +1000	[thread overview]
Message-ID: <20190828042350.6062-3-david@fromorbit.com> (raw)
In-Reply-To: <20190828042350.6062-1-david@fromorbit.com>

From: Dave Chinner <dchinner@redhat.com>

Because we repeat exactly the same code to get the remote attribute
value after both calls to xfs_attr3_leaf_getvalue() if it's a remote
attr. Just do it in xfs_attr3_leaf_getvalue() so the callers don't
have to care about it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/libxfs/xfs_attr.c      | 16 +---------------
 fs/xfs/libxfs/xfs_attr_leaf.c | 35 ++++++++++++++++++-----------------
 2 files changed, 19 insertions(+), 32 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index 776343c4f22b..5e6b6846e607 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -794,15 +794,7 @@ xfs_attr_leaf_get(xfs_da_args_t *args)
 	}
 	error = xfs_attr3_leaf_getvalue(bp, args);
 	xfs_trans_brelse(args->trans, bp);
-	if (error)
-		return error;
-
-	/* check if we have to retrieve a remote attribute to get the value */
-	if (args->flags & ATTR_KERNOVAL)
-		return 0;
-	if (!args->rmtblkno)
-		return 0;
-	return xfs_attr_rmtval_get(args);
+	return error;
 }
 
 /*========================================================================
@@ -1316,12 +1308,6 @@ xfs_attr_node_get(xfs_da_args_t *args)
 	 */
 	blk = &state->path.blk[state->path.active - 1];
 	retval = xfs_attr3_leaf_getvalue(blk->bp, args);
-	if (retval)
-		goto out_release;
-	if (args->flags & ATTR_KERNOVAL)
-		goto out_release;
-	if (args->rmtblkno > 0)
-		retval = xfs_attr_rmtval_get(args);
 
 	/*
 	 * If not in a transaction, we have to release all the buffers.
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index d056767b5c53..e325cdbc9818 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -2391,25 +2391,26 @@ xfs_attr3_leaf_getvalue(
 		}
 		args->valuelen = valuelen;
 		memcpy(args->value, &name_loc->nameval[args->namelen], valuelen);
-	} else {
-		name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
-		ASSERT(name_rmt->namelen == args->namelen);
-		ASSERT(memcmp(args->name, name_rmt->name, args->namelen) == 0);
-		args->rmtvaluelen = be32_to_cpu(name_rmt->valuelen);
-		args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
-		args->rmtblkcnt = xfs_attr3_rmt_blocks(args->dp->i_mount,
-						       args->rmtvaluelen);
-		if (args->flags & ATTR_KERNOVAL) {
-			args->valuelen = args->rmtvaluelen;
-			return 0;
-		}
-		if (args->valuelen < args->rmtvaluelen) {
-			args->valuelen = args->rmtvaluelen;
-			return -ERANGE;
-		}
+		return 0;
+	}
+
+	name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
+	ASSERT(name_rmt->namelen == args->namelen);
+	ASSERT(memcmp(args->name, name_rmt->name, args->namelen) == 0);
+	args->rmtvaluelen = be32_to_cpu(name_rmt->valuelen);
+	args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
+	args->rmtblkcnt = xfs_attr3_rmt_blocks(args->dp->i_mount,
+					       args->rmtvaluelen);
+	if (args->flags & ATTR_KERNOVAL) {
 		args->valuelen = args->rmtvaluelen;
+		return 0;
 	}
-	return 0;
+	if (args->valuelen < args->rmtvaluelen) {
+		args->valuelen = args->rmtvaluelen;
+		return -ERANGE;
+	}
+	args->valuelen = args->rmtvaluelen;
+	return xfs_attr_rmtval_get(args);
 }
 
 /*========================================================================
-- 
2.23.0.rc1


  parent reply	other threads:[~2019-08-28  4:23 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-28  4:23 [PATCH 0/3 v2] xfs: allocate xattr buffer on demand Dave Chinner
2019-08-28  4:23 ` [PATCH 1/3] xfs: make attr lookup returns consistent Dave Chinner
2019-08-28 22:03   ` Darrick J. Wong
2019-08-29  7:41   ` Christoph Hellwig
2019-08-29 10:32     ` Dave Chinner
2019-08-28  4:23 ` Dave Chinner [this message]
2019-08-28 22:01   ` [PATCH 2/3] xfs: move remote attr retrieval into xfs_attr3_leaf_getvalue Darrick J. Wong
2019-08-29  7:46   ` Christoph Hellwig
2019-08-28  4:23 ` [PATCH 3/3] xfs: allocate xattr buffer on demand Dave Chinner
2019-08-28 22:00   ` Darrick J. Wong
2019-08-29  7:55   ` Christoph Hellwig
2019-08-29 10:45     ` Dave Chinner
2019-08-29 11:02       ` Christoph Hellwig

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