[Ocfs2-tools-devel] [PATCH 3/7] Add io_cache in tunefs.ocfs2, take 3

[Tao Ma]

We use io_cache in tunefs when the cluster is locked or
the volume is mount-local.

Signed-off-by: Tao Ma <tao.ma at oracle.com>
---
 tunefs.ocfs2/tunefs.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/tunefs.ocfs2/tunefs.c b/tunefs.ocfs2/tunefs.c
index ed0a18f..5e8dff9 100644
--- a/tunefs.ocfs2/tunefs.c
+++ b/tunefs.ocfs2/tunefs.c
@@ -1370,6 +1370,14 @@ int main(int argc, char **argv)
 		block_signals(SIG_UNBLOCK);
 	}
 
+	/*
+	 * We will use block cache in io. Now whether the cluster is locked or
+	 * the volume is mount local, in both situation we can safely use cache.
+	 * If io_init_cache failed, we will go on the tunefs work without
+	 * the io_cache, so there is no check here.
+	 */
+	io_init_cache(fs->fs_io, ocfs2_extent_recs_per_eb(fs->fs_blocksize));
+
 	ret = journal_check(fs, &dirty, &def_jrnl_size);
 	if (ret || dirty)
 		goto unlock;
@@ -1664,6 +1672,7 @@ unlock:
 	block_signals(SIG_UNBLOCK);
 
 close:
+	io_destroy_cache(fs->fs_io);
 	block_signals(SIG_BLOCK);
 	if (fs && fs->fs_dlm_ctxt)
 		ocfs2_shutdown_dlm(fs);
-- 
1.5.3.2.g4f337