From 0891f9971a3b00d243d5743cc78a628ad060adea Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 13 Jul 2017 12:14:34 -0700 Subject: [PATCH] Revert "xfs: grab dquots without taking the ilock" This reverts commit 50e0bdbe9f48f98bb02eac7030d682f4716884ae. The new XFS_QMOPT_NOLOCK isn't used at all, and conditional locking based on a flag is always the wrong thing to do - we should be having helpers that can be called without the lock instead. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_quota_defs.h | 2 -- fs/xfs/xfs_dquot.c | 14 ++++---------- 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/fs/xfs/libxfs/xfs_quota_defs.h b/fs/xfs/libxfs/xfs_quota_defs.h index 2834574cb6e7..d69c772271cb 100644 --- a/fs/xfs/libxfs/xfs_quota_defs.h +++ b/fs/xfs/libxfs/xfs_quota_defs.h @@ -136,8 +136,6 @@ typedef uint16_t xfs_qwarncnt_t; */ #define XFS_QMOPT_INHERIT 0x1000000 -#define XFS_QMOPT_NOLOCK 0x2000000 /* don't ilock during dqget */ - /* * flags to xfs_trans_mod_dquot. */ diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c index f89f7b5241e6..fd2ef8c2c9a7 100644 --- a/fs/xfs/xfs_dquot.c +++ b/fs/xfs/xfs_dquot.c @@ -472,23 +472,18 @@ xfs_qm_dqtobp( struct xfs_mount *mp = dqp->q_mount; xfs_dqid_t id = be32_to_cpu(dqp->q_core.d_id); struct xfs_trans *tp = (tpp ? *tpp : NULL); - uint lock_mode = 0; + uint lock_mode; quotip = xfs_quota_inode(dqp->q_mount, dqp->dq_flags); dqp->q_fileoffset = (xfs_fileoff_t)id / mp->m_quotainfo->qi_dqperchunk; - ASSERT(!(flags & XFS_QMOPT_NOLOCK) || - xfs_isilocked(quotip, XFS_ILOCK_SHARED) || - xfs_isilocked(quotip, XFS_ILOCK_EXCL)); - if (!(flags & XFS_QMOPT_NOLOCK)) - lock_mode = xfs_ilock_data_map_shared(quotip); + lock_mode = xfs_ilock_data_map_shared(quotip); if (!xfs_this_quota_on(dqp->q_mount, dqp->dq_flags)) { /* * Return if this type of quotas is turned off while we * didn't have the quota inode lock. */ - if (lock_mode) - xfs_iunlock(quotip, lock_mode); + xfs_iunlock(quotip, lock_mode); return -ESRCH; } @@ -498,8 +493,7 @@ xfs_qm_dqtobp( error = xfs_bmapi_read(quotip, dqp->q_fileoffset, XFS_DQUOT_CLUSTER_SIZE_FSB, &map, &nmaps, 0); - if (lock_mode) - xfs_iunlock(quotip, lock_mode); + xfs_iunlock(quotip, lock_mode); if (error) return error; -- 2.20.1