[Cluster-devel] [PATCH 1/3] gfs2: Don't write updates to local statfs file

[Abhi Das <adas@redhat.com>]

We store the local statfs info in the journal header now so
there's no need to write to the local statfs file anymore.

Signed-off-by: Abhi Das <adas@redhat.com>
---
 fs/gfs2/lops.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index cb2a11b458c6..53d2dbf6605e 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -104,7 +104,15 @@ static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh,
 	BUG_ON(!buffer_pinned(bh));
 
 	lock_buffer(bh);
-	mark_buffer_dirty(bh);
+	/*
+	 * We want to eliminate the local statfs file eventually.
+	 * But, for now, we're simply not going to update it by
+	 * never marking its buffers dirty
+	 */
+	if (!(bd->bd_gl->gl_name.ln_type == LM_TYPE_INODE &&
+	      bd->bd_gl->gl_object == GFS2_I(sdp->sd_sc_inode)))
+		mark_buffer_dirty(bh);
+
 	clear_buffer_pinned(bh);
 
 	if (buffer_is_rgrp(bd))
-- 
2.20.1