linux-ext4 - [PATCH v2] ext4: remove set but rewrite variables

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Message-ID: <1621493752-36890-1-git-send-email-tiantao6@hisilicon.com>
Date:   Thu, 20 May 2021 14:55:52 +0800
From:   Tian Tao <tiantao6@...ilicon.com>
To:     <tytso@....edu>, <adilger.kernel@...ger.ca>
CC:     <linux-ext4@...r.kernel.org>, Tian Tao <tiantao6@...ilicon.com>
Subject: [PATCH v2] ext4: remove set but rewrite variables

In the ext4_dx_add_entry function, the at variable is assigned but will
reset just after “again:” label. So delete the unnecessary assignment.
this will not chang the logic.

Signed-off-by: Tian Tao <tiantao6@...ilicon.com>
Reviewed-by: Artem Blagodarenko <artem.blagodarenko@...il.com>
---

v2: update the commit message.
---
 fs/ext4/namei.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index afb9d05..18bbf15 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2497,7 +2497,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
 
 			/* Which index block gets the new entry? */
 			if (at - entries >= icount1) {
-				frame->at = at = at - entries - icount1 + entries2;
+				frame->at = at - entries - icount1 + entries2;
 				frame->entries = entries = entries2;
 				swap(frame->bh, bh2);
 			}
-- 
2.7.4