From be6079461abf796e29d02b450a16908f4bf58f6c Mon Sep 17 00:00:00 2001 From: Carlos Maiolino Date: Mon, 8 Feb 2016 11:27:55 +1100 Subject: xfs: Split default quota limits by quota type Default quotas are globally set due historical reasons. IRIX only supported user and project quotas, and default quota was only applied to user quotas. In Linux, when a default quota is set, all different quota types inherits the same default value. An user with a quota limit larger than the default quota value, will still be limited to the default value because the group quotas also inherits the default quotas. Unless the group which the user belongs to have a custom quota limit set. This patch aims to split the default quota value by quota type. Allowing each quota type having different default values. Default time limits are still set globally. XFS does not set a per-user/group timer, but a single global timer. For changing this behavior, some changes should be made in user-space tools another bugs being fixed. Signed-off-by: Carlos Maiolino Reviewed-by: Eric Sandeen Signed-off-by: Dave Chinner --- fs/xfs/xfs_dquot.c | 26 ++++++++++++----------- fs/xfs/xfs_qm.c | 55 +++++++++++++++++++++++++++++++++++++----------- fs/xfs/xfs_qm.h | 34 ++++++++++++++++++++++++------ fs/xfs/xfs_qm_syscalls.c | 15 +++++++------ fs/xfs/xfs_trans_dquot.c | 15 +++++++------ 5 files changed, 103 insertions(+), 42 deletions(-) (limited to 'fs') diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c index 2f0502f0f214..316b2a1bdba5 100644 --- a/fs/xfs/xfs_dquot.c +++ b/fs/xfs/xfs_dquot.c @@ -92,26 +92,28 @@ xfs_qm_adjust_dqlimits( { struct xfs_quotainfo *q = mp->m_quotainfo; struct xfs_disk_dquot *d = &dq->q_core; + struct xfs_def_quota *defq; int prealloc = 0; ASSERT(d->d_id); + defq = xfs_get_defquota(dq, q); - if (q->qi_bsoftlimit && !d->d_blk_softlimit) { - d->d_blk_softlimit = cpu_to_be64(q->qi_bsoftlimit); + if (defq->bsoftlimit && !d->d_blk_softlimit) { + d->d_blk_softlimit = cpu_to_be64(defq->bsoftlimit); prealloc = 1; } - if (q->qi_bhardlimit && !d->d_blk_hardlimit) { - d->d_blk_hardlimit = cpu_to_be64(q->qi_bhardlimit); + if (defq->bhardlimit && !d->d_blk_hardlimit) { + d->d_blk_hardlimit = cpu_to_be64(defq->bhardlimit); prealloc = 1; } - if (q->qi_isoftlimit && !d->d_ino_softlimit) - d->d_ino_softlimit = cpu_to_be64(q->qi_isoftlimit); - if (q->qi_ihardlimit && !d->d_ino_hardlimit) - d->d_ino_hardlimit = cpu_to_be64(q->qi_ihardlimit); - if (q->qi_rtbsoftlimit && !d->d_rtb_softlimit) - d->d_rtb_softlimit = cpu_to_be64(q->qi_rtbsoftlimit); - if (q->qi_rtbhardlimit && !d->d_rtb_hardlimit) - d->d_rtb_hardlimit = cpu_to_be64(q->qi_rtbhardlimit); + if (defq->isoftlimit && !d->d_ino_softlimit) + d->d_ino_softlimit = cpu_to_be64(defq->isoftlimit); + if (defq->ihardlimit && !d->d_ino_hardlimit) + d->d_ino_hardlimit = cpu_to_be64(defq->ihardlimit); + if (defq->rtbsoftlimit && !d->d_rtb_softlimit) + d->d_rtb_softlimit = cpu_to_be64(defq->rtbsoftlimit); + if (defq->rtbhardlimit && !d->d_rtb_hardlimit) + d->d_rtb_hardlimit = cpu_to_be64(defq->rtbhardlimit); if (prealloc) xfs_dquot_set_prealloc_limits(dq); diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 532ab79d38fe..be125e1758c1 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -560,6 +560,37 @@ xfs_qm_shrink_count( return list_lru_shrink_count(&qi->qi_lru, sc); } +STATIC void +xfs_qm_set_defquota( + xfs_mount_t *mp, + uint type, + xfs_quotainfo_t *qinf) +{ + xfs_dquot_t *dqp; + struct xfs_def_quota *defq; + int error; + + error = xfs_qm_dqread(mp, 0, type, XFS_QMOPT_DOWARN, &dqp); + + if (!error) { + xfs_disk_dquot_t *ddqp = &dqp->q_core; + + defq = xfs_get_defquota(dqp, qinf); + + /* + * Timers and warnings have been already set, let's just set the + * default limits for this quota type + */ + defq->bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); + defq->bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); + defq->ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); + defq->isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); + defq->rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); + defq->rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); + xfs_qm_dqdestroy(dqp); + } +} + /* * This initializes all the quota information that's kept in the * mount structure @@ -606,19 +637,19 @@ xfs_qm_init_quotainfo( * We try to get the limits from the superuser's limits fields. * This is quite hacky, but it is standard quota practice. * - * We look at the USR dquot with id == 0 first, but if user quotas - * are not enabled we goto the GRP dquot with id == 0. - * We don't really care to keep separate default limits for user - * and group quotas, at least not at this point. - * * Since we may not have done a quotacheck by this point, just read * the dquot without attaching it to any hashtables or lists. + * + * Timers and warnings are globally set by the first timer found in + * user/group/proj quota types, otherwise a default value is used. + * This should be split into different fields per quota type. */ error = xfs_qm_dqread(mp, 0, XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : XFS_DQ_PROJ), XFS_QMOPT_DOWARN, &dqp); + if (!error) { xfs_disk_dquot_t *ddqp = &dqp->q_core; @@ -639,13 +670,6 @@ xfs_qm_init_quotainfo( be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; - qinf->qi_bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); - qinf->qi_bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); - qinf->qi_ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); - qinf->qi_isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); - qinf->qi_rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); - qinf->qi_rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); - xfs_qm_dqdestroy(dqp); } else { qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; @@ -656,6 +680,13 @@ xfs_qm_init_quotainfo( qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; } + if (XFS_IS_UQUOTA_RUNNING(mp)) + xfs_qm_set_defquota(mp, XFS_DQ_USER, qinf); + if (XFS_IS_GQUOTA_RUNNING(mp)) + xfs_qm_set_defquota(mp, XFS_DQ_GROUP, qinf); + if (XFS_IS_PQUOTA_RUNNING(mp)) + xfs_qm_set_defquota(mp, XFS_DQ_PROJ, qinf); + qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; qinf->qi_shrinker.seeks = DEFAULT_SEEKS; diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h index c68a38f528ba..2975a822e9f0 100644 --- a/fs/xfs/xfs_qm.h +++ b/fs/xfs/xfs_qm.h @@ -53,6 +53,15 @@ extern struct kmem_zone *xfs_qm_dqtrxzone; */ #define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1 +struct xfs_def_quota { + xfs_qcnt_t bhardlimit; /* default data blk hard limit */ + xfs_qcnt_t bsoftlimit; /* default data blk soft limit */ + xfs_qcnt_t ihardlimit; /* default inode count hard limit */ + xfs_qcnt_t isoftlimit; /* default inode count soft limit */ + xfs_qcnt_t rtbhardlimit; /* default realtime blk hard limit */ + xfs_qcnt_t rtbsoftlimit; /* default realtime blk soft limit */ +}; + /* * Various quota information for individual filesystems. * The mount structure keeps a pointer to this. @@ -76,12 +85,9 @@ typedef struct xfs_quotainfo { struct mutex qi_quotaofflock;/* to serialize quotaoff */ xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */ uint qi_dqperchunk; /* # ondisk dqs in above chunk */ - xfs_qcnt_t qi_bhardlimit; /* default data blk hard limit */ - xfs_qcnt_t qi_bsoftlimit; /* default data blk soft limit */ - xfs_qcnt_t qi_ihardlimit; /* default inode count hard limit */ - xfs_qcnt_t qi_isoftlimit; /* default inode count soft limit */ - xfs_qcnt_t qi_rtbhardlimit;/* default realtime blk hard limit */ - xfs_qcnt_t qi_rtbsoftlimit;/* default realtime blk soft limit */ + struct xfs_def_quota qi_usr_default; + struct xfs_def_quota qi_grp_default; + struct xfs_def_quota qi_prj_default; struct shrinker qi_shrinker; } xfs_quotainfo_t; @@ -171,4 +177,20 @@ extern int xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint, extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint); extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint); +static inline struct xfs_def_quota * +xfs_get_defquota(struct xfs_dquot *dqp, struct xfs_quotainfo *qi) +{ + struct xfs_def_quota *defq; + + if (XFS_QM_ISUDQ(dqp)) + defq = &qi->qi_usr_default; + else if (XFS_QM_ISGDQ(dqp)) + defq = &qi->qi_grp_default; + else { + ASSERT(XFS_QM_ISPDQ(dqp)); + defq = &qi->qi_prj_default; + } + return defq; +} + #endif /* __XFS_QM_H__ */ diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c index 0a252863f82b..f4d0e0a8f517 100644 --- a/fs/xfs/xfs_qm_syscalls.c +++ b/fs/xfs/xfs_qm_syscalls.c @@ -404,6 +404,7 @@ xfs_qm_scall_setqlim( struct xfs_disk_dquot *ddq; struct xfs_dquot *dqp; struct xfs_trans *tp; + struct xfs_def_quota *defq; int error; xfs_qcnt_t hard, soft; @@ -431,6 +432,8 @@ xfs_qm_scall_setqlim( ASSERT(error != -ENOENT); goto out_unlock; } + + defq = xfs_get_defquota(dqp, q); xfs_dqunlock(dqp); tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM); @@ -458,8 +461,8 @@ xfs_qm_scall_setqlim( ddq->d_blk_softlimit = cpu_to_be64(soft); xfs_dquot_set_prealloc_limits(dqp); if (id == 0) { - q->qi_bhardlimit = hard; - q->qi_bsoftlimit = soft; + defq->bhardlimit = hard; + defq->bsoftlimit = soft; } } else { xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft); @@ -474,8 +477,8 @@ xfs_qm_scall_setqlim( ddq->d_rtb_hardlimit = cpu_to_be64(hard); ddq->d_rtb_softlimit = cpu_to_be64(soft); if (id == 0) { - q->qi_rtbhardlimit = hard; - q->qi_rtbsoftlimit = soft; + defq->rtbhardlimit = hard; + defq->rtbsoftlimit = soft; } } else { xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft); @@ -491,8 +494,8 @@ xfs_qm_scall_setqlim( ddq->d_ino_hardlimit = cpu_to_be64(hard); ddq->d_ino_softlimit = cpu_to_be64(soft); if (id == 0) { - q->qi_ihardlimit = hard; - q->qi_isoftlimit = soft; + defq->ihardlimit = hard; + defq->isoftlimit = soft; } } else { xfs_debug(mp, "ihard %Ld < isoft %Ld", hard, soft); diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index 995170194df0..c3d547211d16 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -609,17 +609,20 @@ xfs_trans_dqresv( xfs_qcnt_t total_count; xfs_qcnt_t *resbcountp; xfs_quotainfo_t *q = mp->m_quotainfo; + struct xfs_def_quota *defq; xfs_dqlock(dqp); + defq = xfs_get_defquota(dqp, q); + if (flags & XFS_TRANS_DQ_RES_BLKS) { hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit); if (!hardlimit) - hardlimit = q->qi_bhardlimit; + hardlimit = defq->bhardlimit; softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit); if (!softlimit) - softlimit = q->qi_bsoftlimit; + softlimit = defq->bsoftlimit; timer = be32_to_cpu(dqp->q_core.d_btimer); warns = be16_to_cpu(dqp->q_core.d_bwarns); warnlimit = dqp->q_mount->m_quotainfo->qi_bwarnlimit; @@ -628,10 +631,10 @@ xfs_trans_dqresv( ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS); hardlimit = be64_to_cpu(dqp->q_core.d_rtb_hardlimit); if (!hardlimit) - hardlimit = q->qi_rtbhardlimit; + hardlimit = defq->rtbhardlimit; softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit); if (!softlimit) - softlimit = q->qi_rtbsoftlimit; + softlimit = defq->rtbsoftlimit; timer = be32_to_cpu(dqp->q_core.d_rtbtimer); warns = be16_to_cpu(dqp->q_core.d_rtbwarns); warnlimit = dqp->q_mount->m_quotainfo->qi_rtbwarnlimit; @@ -672,10 +675,10 @@ xfs_trans_dqresv( warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit; hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit); if (!hardlimit) - hardlimit = q->qi_ihardlimit; + hardlimit = defq->ihardlimit; softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit); if (!softlimit) - softlimit = q->qi_isoftlimit; + softlimit = defq->isoftlimit; if (hardlimit && total_count > hardlimit) { xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN); -- cgit v1.2.3