linux-kernel - [PATCH 1/1] Squashfs-Optimized-uncompressed-buffer-loop-v3

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Message-Id: <1378314083-3677-1-git-send-email-manishrma@gmail.com>
Date:	Wed,  4 Sep 2013 22:31:23 +0530
From:	Manish Sharma <manishrma@...il.com>
To:	Phillip Lougher <phillip@...ashfs.org.uk>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernelnewbies@...nelnewbies.org,
	Manish Sharma <manishrma@...il.com>
Subject: [PATCH 1/1] Squashfs-Optimized-uncompressed-buffer-loop-v3


Signed-off-by: Manish Sharma <manishrma@...il.com>
---
 fs/squashfs/block.c |   11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index fb50652..41d108e 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -167,17 +167,14 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
		/*
		 * Block is uncompressed.
		 */
-		int i, in, pg_offset = 0;
-
-		for (i = 0; i < b; i++) {
-			wait_on_buffer(bh[i]);
-			if (!buffer_uptodate(bh[i]))
-				goto block_release;
-		}
+		int in, pg_offset = 0;

		for (bytes = length; k < b; k++) {
			in = min(bytes, msblk->devblksize - offset);
			bytes -= in;
+			wait_on_buffer(bh[k]);
+			if (!buffer_uptodate(bh[k]))
+				goto block_release;
			while (in) {
				if (pg_offset == PAGE_CACHE_SIZE) {
					page++;
--
1.7.9.5
--
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