From f7c66ce3f70d8417de0cfb481ca4e5430382ec5d Mon Sep 17 00:00:00 2001 From: Lachlan McIlroy Date: Tue, 8 May 2007 13:50:19 +1000 Subject: [XFS] Add lockdep support for XFS SGI-PV: 963965 SGI-Modid: xfs-linux-melb:xfs-kern:28485a Signed-off-by: Lachlan McIlroy Signed-off-by: David Chinner Signed-off-by: Tim Shimmin --- fs/xfs/linux-2.6/mrlock.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'fs/xfs/linux-2.6') diff --git a/fs/xfs/linux-2.6/mrlock.h b/fs/xfs/linux-2.6/mrlock.h index af168a1a98c..c110bb00266 100644 --- a/fs/xfs/linux-2.6/mrlock.h +++ b/fs/xfs/linux-2.6/mrlock.h @@ -43,6 +43,18 @@ static inline void mrupdate(mrlock_t *mrp) mrp->mr_writer = 1; } +static inline void mraccess_nested(mrlock_t *mrp, int subclass) +{ + down_read_nested(&mrp->mr_lock, subclass); +} + +static inline void mrupdate_nested(mrlock_t *mrp, int subclass) +{ + down_write_nested(&mrp->mr_lock, subclass); + mrp->mr_writer = 1; +} + + static inline int mrtryaccess(mrlock_t *mrp) { return down_read_trylock(&mrp->mr_lock); -- cgit v1.2.3