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| author | David S. Miller <davem@davemloft.net> | 2010-01-23 09:31:06 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-23 09:31:06 +0100 |
| commit | 51c24aaacaea90c8e87f1dec75a2ac7622b593f8 (patch) | |
| tree | 9f54936c87764bef75e97395cb56b7d1e0df24c6 /fs/jbd2/checkpoint.c | |
| parent | be2net: Add link test to list of ethtool self tests. (diff) | |
| parent | Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ (diff) | |
| download | linux-51c24aaacaea90c8e87f1dec75a2ac7622b593f8.tar.xz linux-51c24aaacaea90c8e87f1dec75a2ac7622b593f8.zip | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'fs/jbd2/checkpoint.c')
| -rw-r--r-- | fs/jbd2/checkpoint.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index ca0f5eb62b20..886849370950 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -22,6 +22,7 @@ #include <linux/jbd2.h> #include <linux/errno.h> #include <linux/slab.h> +#include <linux/blkdev.h> #include <trace/events/jbd2.h> /* @@ -515,6 +516,20 @@ int jbd2_cleanup_journal_tail(journal_t *journal) journal->j_tail_sequence = first_tid; journal->j_tail = blocknr; spin_unlock(&journal->j_state_lock); + + /* + * If there is an external journal, we need to make sure that + * any data blocks that were recently written out --- perhaps + * by jbd2_log_do_checkpoint() --- are flushed out before we + * drop the transactions from the external journal. It's + * unlikely this will be necessary, especially with a + * appropriately sized journal, but we need this to guarantee + * correctness. Fortunately jbd2_cleanup_journal_tail() + * doesn't get called all that often. + */ + if ((journal->j_fs_dev != journal->j_dev) && + (journal->j_flags & JBD2_BARRIER)) + blkdev_issue_flush(journal->j_fs_dev, NULL); if (!(journal->j_flags & JBD2_ABORT)) jbd2_journal_update_superblock(journal, 1); return 0; |