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[XFS] Add lockdep support for XFS

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SGI-PV: 963965
SGI-Modid: xfs-linux-melb:xfs-kern:28485a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
This commit is contained in:
Lachlan McIlroy
2007-05-08 13:50:19 +10:00
committed by Tim Shimmin
parent 71dfd5a396
commit f7c66ce3f7
5 changed files with 88 additions and 28 deletions
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12
fs/xfs/linux-2.6/mrlock.h
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@@ -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);