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Date: Thu, 30 Jul 2009 12:00:35 -0600 From: Andreas Dilger <adilger@....com> To: Jan Kara <jack@...e.cz> Cc: linux-ext4@...r.kernel.org, "Theodore Ts'o" <tytso@....edu>, Alex Zhuravlev <Alex.Zhuravlev@....com> Subject: Re: [PATCH] JBD2: round commit timer up to avoid uncommitted transaction On Jul 30, 2009 19:47 +0200, Jan Kara wrote: > > jbd and jbd2 fixes: fix jiffie rounding in jbd commit timer setup code. > > Rounding down could cause the timer to be fired before the corresponding > > transaction has expired. That transaction can stay not committed forever if > > no new transaction is created or expicit sync/umount happens. > > > > Signed-off-by: Alex Zhuravlev (Tomas) <alex.zhuravlev@....com> > > Signed-off-by: Andreas Dilger <adilger@....com> > > Looks fine. You can add: > Acked-by: Jan Kara <jack@...e.cz> > How about a similar JBD fix? Index: linux-2.6.27.21-0.1/fs/jbd/transaction.c =================================================================== --- linux-2.6.27.21-0.1.orig/fs/jbd/transaction.c 2009-06-10 11:11:41.000000000 -0600 +++ linux-2.6.27.21-0.1/fs/jbd/transaction.c 2009-06-10 11:12:32.000000000 -0600 @@ -54,7 +54,7 @@ spin_lock_init(&transaction->t_inode_list); /* Set up the commit timer for the new transaction. */ - journal->j_commit_timer.expires = round_jiffies(transaction->t_expires); + journal->j_commit_timer.expires = round_jiffies_up(transaction->t_expires); add_timer(&journal->j_commit_timer); J_ASSERT(journal->j_running_transaction == NULL); Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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