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ocfs2/dlm: don't access beyond bitmap size
authorWengang Wang <wen.gang.wang@oracle.com>
Wed, 30 Jun 2010 12:23:30 +0000 (20:23 +0800)
committerJoel Becker <joel.becker@oracle.com>
Mon, 12 Jul 2010 20:56:14 +0000 (13:56 -0700)
dlm->recovery_map is defined as
unsigned long recovery_map[BITS_TO_LONGS(O2NM_MAX_NODES)];

We should treat O2NM_MAX_NODES as the bit map size in bits.
This patches fixes a bit operation that takes O2NM_MAX_NODES + 1 as bitmap size.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

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