linux-kernel - [PATCH 2/5 resend] Thaw the journal when you unfreeze the fs.

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Message-Id: <1323118489-16326-3-git-send-email-kamal@canonical.com>
Date:	Mon,  5 Dec 2011 12:54:46 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	Jan Kara <jack@...e.cz>, Alexander Viro <viro@...iv.linux.org.uk>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	Matthew Wilcox <matthew@....cx>,
	Randy Dunlap <rdunlap@...otime.net>,
	Theodore Tso <tytso@....edu>
Cc:	linux-doc@...r.kernel.org, linux-ext4@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Surbhi Palande <csurbhi@...il.com>,
	Valerie Aurora <val@...consulting.com>,
	Kamal Mostafa <kamal@...onical.com>,
	Christopher Chaltain <christopher.chaltain@...onical.com>,
	"Peter M. Petrakis" <peter.petrakis@...onical.com>,
	Mikulas Patocka <mpatocka@...hat.com>,
	Surbhi Palande <surbhi.palande@...onical.com>
Subject: [PATCH 2/5 resend] Thaw the journal when you unfreeze the fs.

From: Surbhi Palande <surbhi.palande@...onical.com>

Thaw the journal so that transactions can resume

BugLink: https://bugs.launchpad.net/bugs/897421
Signed-off-by: Surbhi Palande <surbhi.palande@...onical.com>
Cc: Kamal Mostafa <kamal@...onical.com>
Tested-by: Peter M. Petrakis <peter.petrakis@...onical.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 fs/ext4/super.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5bfdc21..95f28b8 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4348,10 +4348,14 @@ static int ext4_freeze(struct super_block *sb)
  */
 static int ext4_unfreeze(struct super_block *sb)
 {
+	journal_t *journal;
 	if (sb->s_flags & MS_RDONLY)
 		return 0;
 
 	lock_super(sb);
+	journal = EXT4_SB(sb)->s_journal;
+
+	jbd2_journal_thaw(journal);
 	/* Reset the needs_recovery flag before the fs is unlocked. */
 	EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
 	ext4_commit_super(sb, 1);
-- 
1.7.5.4

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