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authorSunil Mushran <Sunil.Mushran@oracle.com>2006-12-05 17:56:35 -0800
committerMark Fasheh <mark.fasheh@oracle.com>2006-12-07 17:37:53 -0800
commitc271c5c22b0a7ca45fda15f1f4d258bca36a5b94 (patch)
tree9803af515ecf1c101c4a5921d7407c66184147e1 /fs/ocfs2/journal.c
parentc99767974ebd2a719d849fdeaaa1674456f5283f (diff)
ocfs2: local mounts
This allows users to format an ocfs2 file system with a special flag, OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT. When the file system sees this flag, it will not use any cluster services, nor will it require a cluster configuration, thus acting like a 'local' file system. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/journal.c')
-rw-r--r--fs/ocfs2/journal.c46
1 files changed, 33 insertions, 13 deletions
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 1d7f4ab1e5e..825cb0ae1b4 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -144,8 +144,10 @@ handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs)
ocfs2_abort(osb->sb, "Detected aborted journal");
handle = ERR_PTR(-EROFS);
}
- } else
- atomic_inc(&(osb->journal->j_num_trans));
+ } else {
+ if (!ocfs2_mount_local(osb))
+ atomic_inc(&(osb->journal->j_num_trans));
+ }
return handle;
}
@@ -507,9 +509,23 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)
BUG_ON(atomic_read(&(osb->journal->j_num_trans)) != 0);
- status = ocfs2_journal_toggle_dirty(osb, 0);
- if (status < 0)
- mlog_errno(status);
+ if (ocfs2_mount_local(osb)) {
+ journal_lock_updates(journal->j_journal);
+ status = journal_flush(journal->j_journal);
+ journal_unlock_updates(journal->j_journal);
+ if (status < 0)
+ mlog_errno(status);
+ }
+
+ if (status == 0) {
+ /*
+ * Do not toggle if flush was unsuccessful otherwise
+ * will leave dirty metadata in a "clean" journal
+ */
+ status = ocfs2_journal_toggle_dirty(osb, 0);
+ if (status < 0)
+ mlog_errno(status);
+ }
/* Shutdown the kernel journal system */
journal_destroy(journal->j_journal);
@@ -549,7 +565,7 @@ static void ocfs2_clear_journal_error(struct super_block *sb,
}
}
-int ocfs2_journal_load(struct ocfs2_journal *journal)
+int ocfs2_journal_load(struct ocfs2_journal *journal, int local)
{
int status = 0;
struct ocfs2_super *osb;
@@ -576,14 +592,18 @@ int ocfs2_journal_load(struct ocfs2_journal *journal)
}
/* Launch the commit thread */
- osb->commit_task = kthread_run(ocfs2_commit_thread, osb, "ocfs2cmt");
- if (IS_ERR(osb->commit_task)) {
- status = PTR_ERR(osb->commit_task);
+ if (!local) {
+ osb->commit_task = kthread_run(ocfs2_commit_thread, osb,
+ "ocfs2cmt");
+ if (IS_ERR(osb->commit_task)) {
+ status = PTR_ERR(osb->commit_task);
+ osb->commit_task = NULL;
+ mlog(ML_ERROR, "unable to launch ocfs2commit thread, "
+ "error=%d", status);
+ goto done;
+ }
+ } else
osb->commit_task = NULL;
- mlog(ML_ERROR, "unable to launch ocfs2commit thread, error=%d",
- status);
- goto done;
- }
done:
mlog_exit(status);