linux-kernel - [f2fs-dev] [PATCH] f2fs: remove a redundant conditional expression

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Date:   Tue, 28 Nov 2017 20:17:41 +0800
From:   "LiFan" <fanofcode.li@...sung.com>
To:     "'Chao Yu'" <yuchao0@...wei.com>, "'Chao Yu'" <chao@...nel.org>,
        "'Jaegeuk Kim'" <jaegeuk@...nel.org>
Cc:     <linux-kernel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>
Subject: [f2fs-dev] [PATCH] f2fs: remove a redundant conditional expression

Avoid checking is_inode repeatedly, and make the logic 
a little bit clearer.

Signed-off-by: Fan li <fanofcode.li@...sung.com>
---
 fs/f2fs/f2fs.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 4acdca4..95cc4ef 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1995,11 +1995,11 @@ static inline block_t datablock_addr(struct inode *inode,
 	raw_node = F2FS_NODE(node_page);
 
 	/* from GC path only */
-	if (!inode) {
-		if (is_inode)
+	if (is_inode) {
+		if (!inode)
 			base = offset_in_addr(&raw_node->i);
-	} else if (f2fs_has_extra_attr(inode) && is_inode) {
-		base = get_extra_isize(inode);
+		else if (f2fs_has_extra_attr(inode))
+			base = get_extra_isize(inode);
 	}
 
 	addr_array = blkaddr_in_node(raw_node);
-- 
2.7.4