From b9b2dd36c1bc64430f8e13990ab135cbecc10076 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 6 May 2010 17:04:58 -0400 Subject: quota: unify ->get_dqblk Pass the larger struct fs_disk_quota to the ->get_dqblk operation so that the Q_GETQUOTA and Q_XGETQUOTA operations can be implemented with a single filesystem operation and we can retire the ->get_xquota operation. The additional information (RT-subvolume accounting and warn counts) are left zero for the VFS quota implementation. Signed-off-by: Christoph Hellwig Signed-off-by: Jan Kara --- fs/quota/dquot.c | 27 ++++++++++++++++----------- fs/quota/quota.c | 23 ++++++++++++++++++----- 2 files changed, 34 insertions(+), 16 deletions(-) (limited to 'fs/quota') diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 01347e81d0ca..6aed77fc99c7 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2301,25 +2301,30 @@ static inline qsize_t stoqb(qsize_t space) } /* Generic routine for getting common part of quota structure */ -static void do_get_dqblk(struct dquot *dquot, struct if_dqblk *di) +static void do_get_dqblk(struct dquot *dquot, struct fs_disk_quota *di) { struct mem_dqblk *dm = &dquot->dq_dqb; + memset(di, 0, sizeof(*di)); + di->d_version = FS_DQUOT_VERSION; + di->d_flags = dquot->dq_type == USRQUOTA ? + XFS_USER_QUOTA : XFS_GROUP_QUOTA; + di->d_id = dquot->dq_id; + spin_lock(&dq_data_lock); - di->dqb_bhardlimit = stoqb(dm->dqb_bhardlimit); - di->dqb_bsoftlimit = stoqb(dm->dqb_bsoftlimit); - di->dqb_curspace = dm->dqb_curspace + dm->dqb_rsvspace; - di->dqb_ihardlimit = dm->dqb_ihardlimit; - di->dqb_isoftlimit = dm->dqb_isoftlimit; - di->dqb_curinodes = dm->dqb_curinodes; - di->dqb_btime = dm->dqb_btime; - di->dqb_itime = dm->dqb_itime; - di->dqb_valid = QIF_ALL; + di->d_blk_hardlimit = stoqb(dm->dqb_bhardlimit); + di->d_blk_softlimit = stoqb(dm->dqb_bsoftlimit); + di->d_ino_hardlimit = dm->dqb_ihardlimit; + di->d_ino_softlimit = dm->dqb_isoftlimit; + di->d_bcount = dm->dqb_curspace + dm->dqb_rsvspace; + di->d_icount = dm->dqb_curinodes; + di->d_btimer = dm->dqb_btime; + di->d_itimer = dm->dqb_itime; spin_unlock(&dq_data_lock); } int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, - struct if_dqblk *di) + struct fs_disk_quota *di) { struct dquot *dquot; diff --git a/fs/quota/quota.c b/fs/quota/quota.c index 95388f9b7356..8680e257c2bd 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -136,19 +136,32 @@ static int quota_setinfo(struct super_block *sb, int type, void __user *addr) return sb->s_qcop->set_info(sb, type, &info); } +static void copy_to_if_dqblk(struct if_dqblk *dst, struct fs_disk_quota *src) +{ + dst->dqb_bhardlimit = src->d_blk_hardlimit; + dst->dqb_bsoftlimit = src->d_blk_softlimit; + dst->dqb_curspace = src->d_bcount; + dst->dqb_ihardlimit = src->d_ino_hardlimit; + dst->dqb_isoftlimit = src->d_ino_softlimit; + dst->dqb_curinodes = src->d_icount; + dst->dqb_btime = src->d_btimer; + dst->dqb_itime = src->d_itimer; + dst->dqb_valid = QIF_ALL; +} + static int quota_getquota(struct super_block *sb, int type, qid_t id, void __user *addr) { + struct fs_disk_quota fdq; struct if_dqblk idq; int ret; - if (!sb_has_quota_active(sb, type)) - return -ESRCH; if (!sb->s_qcop->get_dqblk) return -ENOSYS; - ret = sb->s_qcop->get_dqblk(sb, type, id, &idq); + ret = sb->s_qcop->get_dqblk(sb, type, id, &fdq); if (ret) return ret; + copy_to_if_dqblk(&idq, &fdq); if (copy_to_user(addr, &idq, sizeof(idq))) return -EFAULT; return 0; @@ -210,9 +223,9 @@ static int quota_getxquota(struct super_block *sb, int type, qid_t id, struct fs_disk_quota fdq; int ret; - if (!sb->s_qcop->get_xquota) + if (!sb->s_qcop->get_dqblk) return -ENOSYS; - ret = sb->s_qcop->get_xquota(sb, type, id, &fdq); + ret = sb->s_qcop->get_dqblk(sb, type, id, &fdq); if (!ret && copy_to_user(addr, &fdq, sizeof(fdq))) return -EFAULT; return ret; -- cgit v1.2.3-59-g8ed1b