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JBD: round commit timer up to avoid uncommitted transaction

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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
explicit sync/umount happens.

Signed-off-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Andreas Dilger 2009-07-30 20:09:46 +02:00 committed by Jan Kara
parent ab86e5765d
commit b449fc6fcc
1 changed files with 2 additions and 1 deletions
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3
fs/jbd/transaction.c
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@ -56,7 +56,8 @@ get_transaction(journal_t *journal, transaction_t *transaction)
spin_lock_init(&transaction->t_handle_lock);
/* 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);