linux-kernel - [PATCH -next 2/2] xfs: simplify if-else condition in xfs_reflink_trim_around

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Date:   Tue, 30 Aug 2022 21:39:39 +0800
From:   Zeng Heng <zengheng4@...wei.com>
To:     <djwong@...nel.org>
CC:     <linux-xfs@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <zengheng4@...wei.com>
Subject: [PATCH -next 2/2] xfs: simplify if-else condition in xfs_reflink_trim_around_shared

"else" is not generally useful after a return,
so remove it for clean code.

There is no logical changes.

Signed-off-by: Zeng Heng <zengheng4@...wei.com>
---
 fs/xfs/xfs_reflink.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index 251f20ddd368..93bdd25680bc 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -200,7 +200,9 @@ xfs_reflink_trim_around_shared(
 	if (fbno == NULLAGBLOCK) {
 		/* No shared blocks at all. */
 		return 0;
-	} else if (fbno == agbno) {
+	}
+
+	if (fbno == agbno) {
 		/*
 		 * The start of this extent is shared.  Truncate the
 		 * mapping at the end of the shared region so that a
@@ -210,16 +212,16 @@ xfs_reflink_trim_around_shared(
 		irec->br_blockcount = flen;
 		*shared = true;
 		return 0;
-	} else {
-		/*
-		 * There's a shared extent midway through this extent.
-		 * Truncate the mapping at the start of the shared
-		 * extent so that a subsequent iteration starts at the
-		 * start of the shared region.
-		 */
-		irec->br_blockcount = fbno - agbno;
-		return 0;
 	}
+
+	/*
+	 * There's a shared extent midway through this extent.
+	 * Truncate the mapping at the start of the shared
+	 * extent so that a subsequent iteration starts at the
+	 * start of the shared region.
+	 */
+	irec->br_blockcount = fbno - agbno;
+	return 0;
 }
 
 int
-- 
2.25.1