linux-ext4 - [PATCH] e2fsck: avoid unnecessary close/reopen for non-MMP filesystems

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Date:	Wed, 21 Mar 2012 23:21:16 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc:	Theodore Ts'o <tytso@....edu>,
	Andreas Dilger <adilger@...mcloud.com>
Subject: [PATCH] e2fsck: avoid unnecessary close/reopen for non-MMP filesystems

For file systems that do not use MMP, there's no reason to close the
file system and then re-open the file system a second time, since
EXT2_FLAG_SKIP_MMP has no meaning for non-MMP file systems anyway.

Signed-off-by: "Theodore Ts'o" <tytso@....edu>
Cc: Andreas Dilger <adilger@...mcloud.com>
---
 e2fsck/unix.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/e2fsck/unix.c b/e2fsck/unix.c
index 59c52ff..d0b10d4 100644
--- a/e2fsck/unix.c
+++ b/e2fsck/unix.c
@@ -1398,12 +1398,10 @@ failure:
 	    (flags & EXT2_FLAG_SKIP_MMP)) {
 		if (e2fsck_check_mmp(fs, ctx))
 			fatal_error(ctx, 0);
-	}
 
-	 /*
-	  * Restart in order to reopen fs but this time start mmp.
-	  */
-	if (flags & EXT2_FLAG_SKIP_MMP) {
+		/*
+		 * Restart in order to reopen fs but this time start mmp.
+		 */
 		ext2fs_close(fs);
 		ctx->fs = NULL;
 		flags &= ~EXT2_FLAG_SKIP_MMP;
-- 
1.7.9.107.g97f9a

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