diff options
| author | Lachlan McIlroy | 2007-05-08 05:50:19 +0200 |
|---|---|---|
| committer | Tim Shimmin | 2007-05-08 05:50:19 +0200 |
| commit | f7c66ce3f70d8417de0cfb481ca4e5430382ec5d (patch) | |
| tree | c9b4d5cb09a9241cb305532edfbd703cd181530d /fs/xfs/linux-2.6/mrlock.h | |
| parent | [XFS] Fix race in xfs_write() b/w dmapi callout and direct I/O checks. (diff) | |
| download | kernel-qcow2-linux-f7c66ce3f70d8417de0cfb481ca4e5430382ec5d.tar.gz kernel-qcow2-linux-f7c66ce3f70d8417de0cfb481ca4e5430382ec5d.tar.xz kernel-qcow2-linux-f7c66ce3f70d8417de0cfb481ca4e5430382ec5d.zip | |
[XFS] Add lockdep support for XFS
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>
Diffstat (limited to 'fs/xfs/linux-2.6/mrlock.h')
| -rw-r--r-- | fs/xfs/linux-2.6/mrlock.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/mrlock.h b/fs/xfs/linux-2.6/mrlock.h index af168a1a98c1..c110bb002665 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); |