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fe88527852
In preparation for implementing lockless slab shrink, use new APIs to dynamically allocate the xfs-qm shrinker, so that it can be freed asynchronously via RCU. Then it doesn't need to wait for RCU read-side critical section when releasing the struct xfs_quotainfo. Link: https://lkml.kernel.org/r/20230911094444.68966-37-zhengqi.arch@bytedance.com Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Cc: Chandan Babu R <chandan.babu@oracle.com> Cc: "Darrick J. Wong" <djwong@kernel.org> Cc: Abhinav Kumar <quic_abhinavk@quicinc.com> Cc: Alasdair Kergon <agk@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Cc: Andreas Dilger <adilger.kernel@dilger.ca> Cc: Andreas Gruenbacher <agruenba@redhat.com> Cc: Anna Schumaker <anna@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bob Peterson <rpeterso@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Carlos Llamas <cmllamas@google.com> Cc: Chao Yu <chao@kernel.org> Cc: Chris Mason <clm@fb.com> Cc: Christian Brauner <brauner@kernel.org> Cc: Christian Koenig <christian.koenig@amd.com> Cc: Chuck Lever <cel@kernel.org> Cc: Coly Li <colyli@suse.de> Cc: Dai Ngo <Dai.Ngo@oracle.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Chinner <david@fromorbit.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Airlie <airlied@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: David Sterba <dsterba@suse.com> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Gao Xiang <hsiangkao@linux.alibaba.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Huang Rui <ray.huang@amd.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Jan Kara <jack@suse.cz> Cc: Jason Wang <jasowang@redhat.com> Cc: Jeff Layton <jlayton@kernel.org> Cc: Jeffle Xu <jefflexu@linux.alibaba.com> Cc: Joel Fernandes (Google) <joel@joelfernandes.org> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Josef Bacik <josef@toxicpanda.com> Cc: Juergen Gross <jgross@suse.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Kirill Tkhai <tkhai@ya.ru> Cc: Marijn Suijten <marijn.suijten@somainline.org> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Mike Snitzer <snitzer@kernel.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Nadav Amit <namit@vmware.com> Cc: Neil Brown <neilb@suse.de> Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Cc: Olga Kornievskaia <kolga@netapp.com> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rob Clark <robdclark@gmail.com> Cc: Rob Herring <robh@kernel.org> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Sean Paul <sean@poorly.run> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Song Liu <song@kernel.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Steven Price <steven.price@arm.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Cc: Tom Talpey <tom@talpey.com> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Cc: Yue Hu <huyue2@coolpad.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
172 lines
4.6 KiB
C
172 lines
4.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_QM_H__
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#define __XFS_QM_H__
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#include "xfs_dquot_item.h"
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#include "xfs_dquot.h"
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struct xfs_inode;
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extern struct kmem_cache *xfs_dqtrx_cache;
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/*
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* Number of bmaps that we ask from bmapi when doing a quotacheck.
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* We make this restriction to keep the memory usage to a minimum.
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*/
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#define XFS_DQITER_MAP_SIZE 10
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#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
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!dqp->q_blk.hardlimit && \
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!dqp->q_blk.softlimit && \
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!dqp->q_rtb.hardlimit && \
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!dqp->q_rtb.softlimit && \
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!dqp->q_ino.hardlimit && \
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!dqp->q_ino.softlimit && \
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!dqp->q_blk.count && \
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!dqp->q_rtb.count && \
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!dqp->q_ino.count)
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struct xfs_quota_limits {
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xfs_qcnt_t hard; /* default hard limit */
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xfs_qcnt_t soft; /* default soft limit */
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time64_t time; /* limit for timers */
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};
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/* Defaults for each quota type: time limits, warn limits, usage limits */
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struct xfs_def_quota {
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struct xfs_quota_limits blk;
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struct xfs_quota_limits ino;
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struct xfs_quota_limits rtb;
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};
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/*
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* Various quota information for individual filesystems.
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* The mount structure keeps a pointer to this.
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*/
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struct xfs_quotainfo {
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struct radix_tree_root qi_uquota_tree;
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struct radix_tree_root qi_gquota_tree;
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struct radix_tree_root qi_pquota_tree;
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struct mutex qi_tree_lock;
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struct xfs_inode *qi_uquotaip; /* user quota inode */
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struct xfs_inode *qi_gquotaip; /* group quota inode */
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struct xfs_inode *qi_pquotaip; /* project quota inode */
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struct list_lru qi_lru;
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int qi_dquots;
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struct mutex qi_quotaofflock;/* to serialize quotaoff */
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xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
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uint qi_dqperchunk; /* # ondisk dq in above chunk */
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struct xfs_def_quota qi_usr_default;
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struct xfs_def_quota qi_grp_default;
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struct xfs_def_quota qi_prj_default;
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struct shrinker *qi_shrinker;
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/* Minimum and maximum quota expiration timestamp values. */
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time64_t qi_expiry_min;
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time64_t qi_expiry_max;
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};
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static inline struct radix_tree_root *
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xfs_dquot_tree(
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struct xfs_quotainfo *qi,
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xfs_dqtype_t type)
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{
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switch (type) {
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case XFS_DQTYPE_USER:
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return &qi->qi_uquota_tree;
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case XFS_DQTYPE_GROUP:
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return &qi->qi_gquota_tree;
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case XFS_DQTYPE_PROJ:
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return &qi->qi_pquota_tree;
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default:
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ASSERT(0);
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}
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return NULL;
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}
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static inline struct xfs_inode *
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xfs_quota_inode(struct xfs_mount *mp, xfs_dqtype_t type)
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{
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switch (type) {
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case XFS_DQTYPE_USER:
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return mp->m_quotainfo->qi_uquotaip;
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case XFS_DQTYPE_GROUP:
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return mp->m_quotainfo->qi_gquotaip;
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case XFS_DQTYPE_PROJ:
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return mp->m_quotainfo->qi_pquotaip;
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default:
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ASSERT(0);
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}
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return NULL;
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}
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extern void xfs_trans_mod_dquot(struct xfs_trans *tp, struct xfs_dquot *dqp,
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uint field, int64_t delta);
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extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);
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extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);
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/*
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* We keep the usr, grp, and prj dquots separately so that locking will be
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* easier to do at commit time. All transactions that we know of at this point
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* affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
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*/
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enum {
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XFS_QM_TRANS_USR = 0,
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XFS_QM_TRANS_GRP,
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XFS_QM_TRANS_PRJ,
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XFS_QM_TRANS_DQTYPES
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};
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#define XFS_QM_TRANS_MAXDQS 2
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struct xfs_dquot_acct {
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struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];
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};
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/*
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* Users are allowed to have a usage exceeding their softlimit for
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* a period this long.
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*/
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#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
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#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
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#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
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extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);
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/* quota ops */
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extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
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extern int xfs_qm_scall_getquota(struct xfs_mount *mp,
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xfs_dqid_t id,
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xfs_dqtype_t type,
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struct qc_dqblk *dst);
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extern int xfs_qm_scall_getquota_next(struct xfs_mount *mp,
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xfs_dqid_t *id,
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xfs_dqtype_t type,
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struct qc_dqblk *dst);
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extern int xfs_qm_scall_setqlim(struct xfs_mount *mp,
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xfs_dqid_t id,
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xfs_dqtype_t type,
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struct qc_dqblk *newlim);
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extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint);
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extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint);
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static inline struct xfs_def_quota *
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xfs_get_defquota(struct xfs_quotainfo *qi, xfs_dqtype_t type)
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{
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switch (type) {
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case XFS_DQTYPE_USER:
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return &qi->qi_usr_default;
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case XFS_DQTYPE_GROUP:
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return &qi->qi_grp_default;
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case XFS_DQTYPE_PROJ:
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return &qi->qi_prj_default;
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default:
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ASSERT(0);
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return NULL;
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}
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}
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#endif /* __XFS_QM_H__ */
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