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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2007-12-04 03:43:01 +0300 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-12-17 21:51:23 +0300 |
| commit | e8aed3450c0afd6fdb79ec233f806e3e69454dfe (patch) | |
| tree | aa83824230c1b0c58fe9ec68d007c35f42b90fa7 /fs/ocfs2/journal.c | |
| parent | 0879c584ffcccd50a8d0f72cab3a51702613f901 (diff) | |
| download | linux-e8aed3450c0afd6fdb79ec233f806e3e69454dfe.tar.xz | |
ocfs2: Re-journal buffers after transaction extend
ocfs2_extend_trans() might call journal_restart() which will commit dirty
buffers and then restart the transaction. This means that any buffers which
still need changes should be passed to journal_access() again. Some paths
during extend weren't doing this right.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/journal.c')
| -rw-r--r-- | fs/ocfs2/journal.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index 0e1250c2ef44..8d81f6c1b877 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -174,6 +174,12 @@ int ocfs2_commit_trans(struct ocfs2_super *osb, * transaction. extend_trans will either extend the current handle by * nblocks, or commit it and start a new one with nblocks credits. * + * This might call journal_restart() which will commit dirty buffers + * and then restart the transaction. Before calling + * ocfs2_extend_trans(), any changed blocks should have been + * dirtied. After calling it, all blocks which need to be changed must + * go through another set of journal_access/journal_dirty calls. + * * WARNING: This will not release any semaphores or disk locks taken * during the transaction, so make sure they were taken *before* * start_trans or we'll have ordering deadlocks. |