From 28fb588c9bd810dec273d96e80591392f6ce1e1c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 6 Dec 2011 21:58:21 +0000 Subject: [PATCH] xfs: simplify xfs_qm_detach_gdquots There is no reason to drop qi_dqlist_lock around calls to xfs_qm_dqrele because the free list lock now nests inside qi_dqlist_lock and the dquot lock. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Ben Myers --- fs/xfs/xfs_qm.c | 22 +++++----------------- 1 file changed, 5 insertions(+), 17 deletions(-) diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index b8df0bda5a54..671f37eae1c7 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -449,7 +449,6 @@ xfs_qm_detach_gdquots( { struct xfs_quotainfo *q = mp->m_quotainfo; struct xfs_dquot *dqp, *gdqp; - int nrecl; again: ASSERT(mutex_is_locked(&q->qi_dqlist_lock)); @@ -462,25 +461,14 @@ xfs_qm_detach_gdquots( mutex_lock(&q->qi_dqlist_lock); goto again; } - if ((gdqp = dqp->q_gdquot)) { - xfs_dqlock(gdqp); + + gdqp = dqp->q_gdquot; + if (gdqp) dqp->q_gdquot = NULL; - } xfs_dqunlock(dqp); - if (gdqp) { - /* - * Can't hold the mplist lock across a dqput. - * XXXmust convert to marker based iterations here. - */ - nrecl = q->qi_dqreclaims; - mutex_unlock(&q->qi_dqlist_lock); - xfs_qm_dqput(gdqp); - - mutex_lock(&q->qi_dqlist_lock); - if (nrecl != q->qi_dqreclaims) - goto again; - } + if (gdqp) + xfs_qm_dqrele(gdqp); } }