linux-kernel - [PATCH 1/1] fs: Small refactoring of the code in ext4 2.6.37-rc1

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Message-ID: <250707.83204.qm@web110504.mail.gq1.yahoo.com>
Date:	Thu, 4 Nov 2010 15:07:47 -0700 (PDT)
From:	André Luis Pereira dos Santos - BSRSoft 
	<andre@...soft.com.br>
To:	Andreas Dilger <adilger.kernel@...ger.ca>
Cc:	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] fs: Small refactoring of the code in ext4 2.6.37-rc1

From: Andre Luis Pereira dos Santos <andre@...soft.com.br>

Hi.
Small refactoring of the code in order to make minor enhancements to critical areas.
The notation x + 1 has been replaced by more efficient notation x + +.

Signed-off-by: Andre Luis Pereira dos Santos <andre@...soft.com.br>
---
Signed-off-by: Andre Luis Pereira dos Santos <andre@...soft.com.br>
--- linux-2.6.37-rc1/fs/ext4/extents.c	2010-11-01 09:54:12.000000000 -0200
+++ linux-2.6.37-rc1-patched/fs/ext4/extents.c	2010-11-04 19:54:26.000000000 -0200
@@ -555,9 +555,9 @@ ext4_ext_binsearch(struct inode *inode,
 	while (l <= r) {
 		m = l + (r - l) / 2;
 		if (block < le32_to_cpu(m->ee_block))
-			r = m - 1;
+			r = m--;
 		else
-			l = m + 1;
+			l = m++;
 		ext_debug("%p(%u):%p(%u):%p(%u) ", l, le32_to_cpu(l->ee_block),
 				m, le32_to_cpu(m->ee_block),
 				r, le32_to_cpu(r->ee_block));
@@ -1557,7 +1557,7 @@ static int ext4_ext_try_to_merge(struct
 		if (ext4_ext_is_uninitialized(ex))
 			uninitialized = 1;
 		ex->ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex)
-				+ ext4_ext_get_actual_len(ex + 1));
+				+ ext4_ext_get_actual_len(ex++));
 		if (uninitialized)
 			ext4_ext_mark_uninitialized(ex);


      
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