[XFS] shrink mrlock_t

The writer field is not needed for non_DEBU builds so remove it. While
we're at i also clean up the interface for is locked asserts to go through
and xfs_iget.c helper with an interface like the xfs_ilock routines to
isolated the XFS codebase from mrlock internals. That way we can kill
mrlock_t entirely once rw_semaphores grow an islocked facility. Also
remove unused flags to the ilock family of functions.

SGI-PV: 976035
SGI-Modid: xfs-linux-melb:xfs-kern:30902a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
index f441f836ca8b..99611381e740 100644
--- a/fs/xfs/quota/xfs_trans_dquot.c
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -834,7 +834,7 @@ xfs_trans_reserve_quota_nblks(
         ASSERT(ip->i_ino != mp->m_sb.sb_uquotino);
         ASSERT(ip->i_ino != mp->m_sb.sb_gquotino);
 
-        ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
+        ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
         ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
         ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
                                 XFS_TRANS_DQ_RES_RTBLKS ||