linux-kernel - [PATCH 14/16] GFS2: don't reference inode's glock during block allocation trace

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Date:	Fri, 30 Nov 2012 09:52:19 +0000
From:	Steven Whitehouse <swhiteho@...hat.com>
To:	linux-kernel@...r.kernel.org, cluster-devel@...hat.com
Cc:	Bob Peterson <rpeterso@...hat.com>,
	Steven Whitehouse <swhiteho@...hat.com>
Subject: [PATCH 14/16] GFS2: don't reference inode's glock during block allocation trace

From: Bob Peterson <rpeterso@...hat.com>

This patch changes the block allocation trace so that it references
the rgd's glock rather than the inode's glock. Now that the order
of inode creation is switched, this prevents a reference to the
glock which may not be set yet.

Signed-off-by: Bob Peterson <rpeterso@...hat.com>
Signed-off-by: Steven Whitehouse <swhiteho@...hat.com>

diff --git a/fs/gfs2/trace_gfs2.h b/fs/gfs2/trace_gfs2.h
index bbdc78a..2ee13e8 100644
--- a/fs/gfs2/trace_gfs2.h
+++ b/fs/gfs2/trace_gfs2.h
@@ -486,7 +486,7 @@ TRACE_EVENT(gfs2_block_alloc,
 	),
 
 	TP_fast_assign(
-		__entry->dev		= ip->i_gl->gl_sbd->sd_vfs->s_dev;
+		__entry->dev		= rgd->rd_gl->gl_sbd->sd_vfs->s_dev;
 		__entry->start		= block;
 		__entry->inum		= ip->i_no_addr;
 		__entry->len		= len;
-- 
1.7.4

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