* GPL HEADER END
*/
/*
- * Copyright (c) 2012 Whamcloud, Inc.
+ * Copyright (c) 2012, 2017, Intel Corporation.
* Use is subject to license terms.
*/
#include <obd.h>
-#include <lquota.h>
+#include <lustre_quota.h>
#ifndef _LQUOTA_INTERNAL_H
#define _LQUOTA_INTERNAL_H
-#define QTYPE_NAME(qtype) ((qtype) == USRQUOTA ? "usr" : "grp")
+#define RES_NAME(res) ((res) == LQUOTA_RES_MD ? "md" : "dt")
+
+#define QIF_IFLAGS (QIF_INODES | QIF_ITIME | QIF_ILIMITS)
+#define QIF_BFLAGS (QIF_SPACE | QIF_BTIME | QIF_BLIMITS)
+
+/* The biggest filename are the one used for slave index which are in the form
+ * of 0x%x-%s,glb_fid.f_oid,slv_uuid, that's to say:
+ * 2(0x) + 8(f_oid) + 1(-) + 40(UUID_MAX) which means 51 chars + '\0' */
+#define LQUOTA_NAME_MAX 52
+
+/* reserved OID in FID_SEQ_QUOTA for local objects */
+enum lquota_local_oid {
+ LQUOTA_USR_OID = 1UL, /* slave index copy for user quota */
+ LQUOTA_GRP_OID = 2UL, /* slave index copy for group quota */
+ LQUOTA_PRJ_OID = 3UL, /* slave index copy for project quota */
+ /* all OIDs after this are allocated dynamically by the QMT */
+ LQUOTA_GENERATED_OID = 4096UL,
+};
+
+static inline __u32 qtype2slv_oid(int qtype)
+{
+ switch (qtype) {
+ case USRQUOTA:
+ return LQUOTA_USR_OID;
+ case GRPQUOTA:
+ return LQUOTA_GRP_OID;
+ case PRJQUOTA:
+ return LQUOTA_PRJ_OID;
+ }
+
+ /* should not come here, just make compile happy */
+ return LQUOTA_USR_OID;
+}
+
+/*
+ * lquota_entry support
+ */
+
+/* Common operations supported by a lquota_entry */
+struct lquota_entry_operations {
+ /* Initialize specific fields of a lquota entry */
+ void (*lqe_init)(struct lquota_entry *, void *arg);
+
+ /* Read quota settings from disk and update lquota entry */
+ int (*lqe_read)(const struct lu_env *, struct lquota_entry *,
+ void *arg, bool find);
+
+ /* Print debug information about a given lquota entry */
+ void (*lqe_debug)(struct lquota_entry *, void *,
+ struct libcfs_debug_msg_data *,
+ struct va_format *vaf);
+};
+
+/* Per-ID information specific to the quota master target */
+struct lquota_mst_entry {
+ /* global hard limit, in inodes or kbytes */
+ __u64 lme_hardlimit;
+
+ /* global quota soft limit, in inodes or kbytes */
+ __u64 lme_softlimit;
+
+ /* grace time, in seconds */
+ __u64 lme_gracetime;
+
+ /* last time we glimpsed */
+ time64_t lme_revoke_time;
+
+ /* r/w semaphore used to protect concurrent access to the quota
+ * parameters which are stored on disk */
+ struct rw_semaphore lme_sem;
+
+ /* quota space that may be released after glimpse */
+ __u64 lme_may_rel;
+};
+
+/* Per-ID information specific to the quota slave */
+struct lquota_slv_entry {
+ /* [ib]tune size, inodes or kbytes */
+ __u64 lse_qtune;
+
+ /* per-ID lock handle */
+ struct lustre_handle lse_lockh;
+
+ /* pending write which were granted quota space but haven't completed
+ * yet, in inodes or kbytes. */
+ __u64 lse_pending_write;
+
+ /* writes waiting for quota space, in inodes or kbytes. */
+ __u64 lse_waiting_write;
+
+ /* pending release, in inodes or kbytes */
+ __u64 lse_pending_rel;
+
+ /* pending dqacq/dqrel requests. */
+ unsigned int lse_pending_req;
+
+ /* rw spinlock protecting in-memory counters (i.e. lse_pending*) */
+ rwlock_t lse_lock;
+
+ /* waiter for pending request done */
+ wait_queue_head_t lse_waiters;
+
+ /* hint on current on-disk usage, in inodes or kbytes */
+ __u64 lse_usage;
+
+ /* time to trigger quota adjust */
+ time64_t lse_adjust_time;
+
+ /* return code of latest acquire RPC */
+ int lse_acq_rc;
+
+ /* when latest acquire RPC completed */
+ time64_t lse_acq_time;
+
+ /* when latest edquot set */
+ time64_t lse_edquot_time;
+};
+
+/* In-memory entry for each enforced quota id
+ * A lquota_entry structure belong to a single lquota_site */
+struct lquota_entry {
+ /* link to site hash table */
+ struct hlist_node lqe_hash;
+
+ /* quota identifier associated with this entry */
+ union lquota_id lqe_id;
+
+ /* site this quota entry belongs to */
+ struct lquota_site *lqe_site;
+
+ /* reference counter */
+ atomic_t lqe_ref;
+
+ /* linked to list of lqes which:
+ * - need quota space adjustment on slave
+ * - need glimpse to be sent on master */
+ struct list_head lqe_link;
+
+ /* current quota settings/usage of this ID */
+ __u64 lqe_granted; /* granted limit, inodes or kbytes */
+ /* used in quota pool recalc process (only on QMT) */
+ __u64 lqe_recalc_granted;
+ __u64 lqe_qunit; /* [ib]unit size, inodes or kbytes */
+ union {
+ struct lquota_mst_entry me; /* params specific to QMT */
+ struct lquota_slv_entry se; /* params specific to QSD */
+ } u;
+
+ /* flags describing the state of the lquota_entry */
+ unsigned long lqe_enforced:1, /* quota enforced or not */
+ lqe_uptodate:1, /* successfully read from disk */
+ lqe_edquot:1, /* id out of quota space on QMT */
+ lqe_gl:1, /* glimpse is in progress */
+ lqe_nopreacq:1, /* pre-acquire disabled */
+ lqe_is_default:1, /* the default quota is used */
+ lqe_is_global:1; /* lqe belongs to global pool "0x0"*/
+
+ struct lqe_glbl_data *lqe_glbl_data;
+};
+
+#define lqe_qtype(lqe) (lqe->lqe_site->lqs_qtype)
+#define lqe_rtype(lqe) (lqe2qpi(lqe)->qpi_rtype)
+
+struct lqe_glbl_entry {
+ __u64 lge_qunit;
+ unsigned long lge_edquot:1,
+ /* true when minimum qunit is set */
+ lge_qunit_set:1,
+ /* qunit or edquot is changed - need
+ * to send glimpse to appropriate slave */
+ lge_qunit_nu:1,
+ lge_edquot_nu:1;
+};
+
+struct lqe_glbl_data {
+ struct lqe_glbl_entry *lqeg_arr;
+ /* number of initialised entries */
+ int lqeg_num_used;
+ /* number of allocated entries */
+ int lqeg_num_alloc;
+};
+
+/* Compartment within which lquota_entry are unique.
+ * lquota_entry structures are kept in a hash table and read from disk if not
+ * present. */
+struct lquota_site {
+ /* Hash table storing lquota_entry structures */
+ struct cfs_hash *lqs_hash;
+
+ /* Quota type, either user or group. */
+ int lqs_qtype;
+
+ /* Record whether this site is for a QMT or a slave */
+ int lqs_is_mst;
+
+ /* Vector of operations which can be done on lquota entry belonging to
+ * this quota site */
+ const struct lquota_entry_operations *lqs_ops;
+
+ /* Backpointer to parent structure, either QMT pool info for master or
+ * QSD for slave */
+ void *lqs_parent;
+};
+
+#define lqe_hardlimit u.me.lme_hardlimit
+#define lqe_softlimit u.me.lme_softlimit
+#define lqe_gracetime u.me.lme_gracetime
+#define lqe_revoke_time u.me.lme_revoke_time
+#define lqe_sem u.me.lme_sem
+#define lqe_may_rel u.me.lme_may_rel
+
+#define lqe_qtune u.se.lse_qtune
+#define lqe_pending_write u.se.lse_pending_write
+#define lqe_waiting_write u.se.lse_waiting_write
+#define lqe_pending_rel u.se.lse_pending_rel
+#define lqe_pending_req u.se.lse_pending_req
+#define lqe_waiters u.se.lse_waiters
+#define lqe_lock u.se.lse_lock
+#define lqe_usage u.se.lse_usage
+#define lqe_adjust_time u.se.lse_adjust_time
+#define lqe_lockh u.se.lse_lockh
+#define lqe_acq_rc u.se.lse_acq_rc
+#define lqe_acq_time u.se.lse_acq_time
+#define lqe_edquot_time u.se.lse_edquot_time
+
+#define LQUOTA_BUMP_VER 0x1
+#define LQUOTA_SET_VER 0x2
+
+extern struct kmem_cache *lqe_kmem;
+
+/* helper routine to get/put reference on lquota_entry */
+static inline void lqe_getref(struct lquota_entry *lqe)
+{
+ LASSERT(lqe != NULL);
+ atomic_inc(&lqe->lqe_ref);
+}
+
+static inline void lqe_putref(struct lquota_entry *lqe)
+{
+ LASSERT(lqe != NULL);
+ LASSERT(atomic_read(&lqe->lqe_ref) > 0);
+ if (atomic_dec_and_test(&lqe->lqe_ref))
+ OBD_SLAB_FREE_PTR(lqe, lqe_kmem);
+}
+
+static inline int lqe_is_master(struct lquota_entry *lqe)
+{
+ return lqe->lqe_site->lqs_is_mst;
+}
+
+/* lqe locking helpers */
+static inline void lqe_write_lock(struct lquota_entry *lqe)
+{
+ if (lqe_is_master(lqe))
+ down_write(&lqe->lqe_sem);
+ else
+ write_lock(&lqe->lqe_lock);
+}
+
+static inline void lqe_write_unlock(struct lquota_entry *lqe)
+{
+ if (lqe_is_master(lqe))
+ up_write(&lqe->lqe_sem);
+ else
+ write_unlock(&lqe->lqe_lock);
+}
+
+static inline void lqe_read_lock(struct lquota_entry *lqe)
+{
+ if (lqe_is_master(lqe))
+ down_read(&lqe->lqe_sem);
+ else
+ read_lock(&lqe->lqe_lock);
+}
+
+static inline void lqe_read_unlock(struct lquota_entry *lqe)
+{
+ if (lqe_is_master(lqe))
+ up_read(&lqe->lqe_sem);
+ else
+ read_unlock(&lqe->lqe_lock);
+}
+
+/*
+ * Helper functions & prototypes
+ */
+
+/* minimum qunit size, 1K inode for metadata pool and 1MB for data pool */
+#define LQUOTA_LEAST_QUNIT(type) \
+ (type == LQUOTA_RES_MD ? (1 << 10) : toqb(OFD_MAX_BRW_SIZE))
+
+static inline enum osd_quota_local_flags lquota_over_fl(int qtype)
+{
+ switch (qtype) {
+ case USRQUOTA:
+ return QUOTA_FL_OVER_USRQUOTA;
+ case GRPQUOTA:
+ return QUOTA_FL_OVER_GRPQUOTA;
+ case PRJQUOTA:
+ return QUOTA_FL_OVER_PRJQUOTA;
+ }
+
+ /* should not come here, just make compile happy */
+ return QUOTA_FL_OVER_USRQUOTA;
+}
+
+/* Common data shared by quota-level handlers. This is allocated per-thread to
+ * reduce stack consumption */
+struct lquota_thread_info {
+ union lquota_rec qti_rec;
+ struct lu_buf qti_lb;
+ struct lu_attr qti_attr;
+ struct dt_object_format qti_dof;
+ struct lu_fid qti_fid;
+ char qti_buf[LQUOTA_NAME_MAX];
+};
+
+#define qti_glb_rec qti_rec.lqr_glb_rec
+#define qti_acct_rec qti_rec.lqr_acct_rec
+#define qti_slv_rec qti_rec.lqr_slv_rec
+
+#define LQUOTA_BUMP_VER 0x1
+#define LQUOTA_SET_VER 0x2
+
+extern struct lu_context_key lquota_thread_key;
+
+/* extract lquota_threa_info context from environment */
+static inline
+struct lquota_thread_info *lquota_info(const struct lu_env *env)
+{
+ return lu_env_info(env, &lquota_thread_key);
+}
+
+#define req_is_acq(flags) ((flags & QUOTA_DQACQ_FL_ACQ) != 0)
+#define req_is_preacq(flags) ((flags & QUOTA_DQACQ_FL_PREACQ) != 0)
+#define req_is_rel(flags) ((flags & QUOTA_DQACQ_FL_REL) != 0)
+#define req_has_rep(flags) ((flags & QUOTA_DQACQ_FL_REPORT) != 0)
+
+/* debugging macros */
+#ifdef LIBCFS_DEBUG
+#define lquota_lqe_debug(msgdata, mask, cdls, lqe, fmt, a...) do { \
+ CFS_CHECK_STACK(msgdata, mask, cdls); \
+ \
+ if (((mask) & D_CANTMASK) != 0 || \
+ ((libcfs_debug & (mask)) != 0 && \
+ (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) \
+ lquota_lqe_debug0(lqe, msgdata, fmt, ##a); \
+} while(0)
+
+void lquota_lqe_debug0(struct lquota_entry *lqe,
+ struct libcfs_debug_msg_data *data, const char *fmt, ...)
+ __attribute__ ((format (printf, 3, 4)));
+
+#define LQUOTA_DEBUG_LIMIT(mask, lqe, fmt, a...) do { \
+ static struct cfs_debug_limit_state _lquota_cdls; \
+ LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, &_lquota_cdls); \
+ lquota_lqe_debug(&msgdata, mask, &_lquota_cdls, lqe, "$$$ "fmt" ", \
+ ##a); \
+} while (0)
+
+#define LQUOTA_ERROR(lqe, fmt, a...) LQUOTA_DEBUG_LIMIT(D_ERROR, lqe, fmt, ## a)
+#define LQUOTA_WARN(lqe, fmt, a...) \
+ LQUOTA_DEBUG_LIMIT(D_WARNING, lqe, fmt, ## a)
+#define LQUOTA_CONSOLE(lqe, fmt, a...) \
+ LQUOTA_DEBUG_LIMIT(D_CONSOLE, lqe, fmt, ## a)
+
+#define LQUOTA_ELEVEL_LQES(level, env, fmt, a...) do { \
+ int i; \
+ for (i = 0; i < qti_lqes_cnt(env); i++) { \
+ LQUOTA_##level(qti_lqes(env)[i], fmt, ##a); \
+ } \
+} while (0)
+#define LQUOTA_WARN_LQES(lqe, fmt, a...) \
+ LQUOTA_ELEVEL_LQES(WARN, env, fmt, ##a)
+#define LQUOTA_CONSOLE_LQES(lqe, fmt, a...) \
+ LQUOTA_ELEVEL_LQES(CONSOLE, env, fmt, ##a)
+#define LQUOTA_ERROR_LQES(lqe, fmt, a...) \
+ LQUOTA_ELEVEL_LQES(ERROR, env, fmt, ##a)
+
+#define LQUOTA_DEBUG(lqe, fmt, a...) do { \
+ LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_QUOTA, NULL); \
+ lquota_lqe_debug(&msgdata, D_QUOTA, NULL, lqe, "$$$ "fmt" ", ##a); \
+} while (0)
+
+#define LQUOTA_DEBUG_LQES(env, fmt, a...) do { \
+ int i; \
+ for (i = 0; i < qti_lqes_cnt(env); i++) { \
+ LQUOTA_DEBUG(qti_lqes(env)[i], fmt, ##a); \
+ } \
+} while (0)
+
+
+#else /* !LIBCFS_DEBUG */
+# define LQUOTA_DEBUG_LQES(lqe, fmt, a...) ((void)0)
+# define LQUOTA_ERROR_LQES(lqe, fmt, a...) ((void)0)
+# define LQUOTA_WARN_LQES(lqe, fmt, a...) ((void)0)
+# define LQUOTA_CONSOLE_LQES(lqe, fmt, a...) ((void)0)
+# define LQUOTA_DEBUG(lqe, fmt, a...) ((void)0)
+# define LQUOTA_ERROR(lqe, fmt, a...) ((void)0)
+# define LQUOTA_WARN(lqe, fmt, a...) ((void)0)
+# define LQUOTA_CONSOLE(lqe, fmt, a...) ((void)0)
+# define lquota_lqe_debug(cdls, level, lqe, file, func, line, fmt, a...) \
+ ((void)0)
+#endif
/* lquota_lib.c */
struct dt_object *acct_obj_lookup(const struct lu_env *, struct dt_device *,
- __u32);
+ int);
+void lquota_generate_fid(struct lu_fid *, int, int);
+int lquota_extract_fid(const struct lu_fid *, int *, int *);
+const struct dt_index_features *glb_idx_feature(struct lu_fid *);
+
+/* lquota_entry.c */
+/* site create/destroy */
+struct lquota_site *lquota_site_alloc(const struct lu_env *env, void *parent,
+ bool master, short qtype,
+ const struct lquota_entry_operations *op);
+void lquota_site_free(const struct lu_env *, struct lquota_site *);
+/* quota entry operations */
+#define lqe_locate(env, site, id) lqe_locate_find(env, site, id, false)
+#define lqe_find(env, site, id) lqe_locate_find(env, site, id, true)
+struct lquota_entry *lqe_locate_find(const struct lu_env *,
+ struct lquota_site *,
+ union lquota_id *, bool);
+
+/* lquota_disk.c */
+struct dt_object *lquota_disk_dir_find_create(const struct lu_env *,
+ struct dt_device *,
+ struct dt_object *, const char *);
+struct dt_object *lquota_disk_glb_find_create(const struct lu_env *,
+ struct dt_device *,
+ struct dt_object *,
+ struct lu_fid *, bool);
+struct dt_object *lquota_disk_slv_find_create(const struct lu_env *,
+ struct dt_device *,
+ struct dt_object *,
+ struct lu_fid *,
+ struct obd_uuid *, bool);
+typedef int (*lquota_disk_slv_cb_t) (const struct lu_env *, struct lu_fid *,
+ char *, struct lu_fid *, void *);
+int lquota_disk_for_each_slv(const struct lu_env *, struct dt_object *,
+ struct lu_fid *, lquota_disk_slv_cb_t, void *);
+struct dt_object *lquota_disk_slv_find(const struct lu_env *,
+ struct dt_device *, struct dt_object *,
+ const struct lu_fid *,
+ struct obd_uuid *);
+int lquota_disk_read(const struct lu_env *, struct dt_object *,
+ union lquota_id *, struct dt_rec *);
+int lquota_disk_declare_write(const struct lu_env *, struct thandle *,
+ struct dt_object *, union lquota_id *);
+int lquota_disk_write(const struct lu_env *, struct thandle *,
+ struct dt_object *, union lquota_id *, struct dt_rec *,
+ __u32, __u64 *);
+int lquota_disk_update_ver(const struct lu_env *, struct dt_device *,
+ struct dt_object *, __u64);
+int lquota_disk_write_glb(const struct lu_env *, struct dt_object *, __u64,
+ struct lquota_glb_rec *);
+
+/* qmt_dev.c */
+int qmt_glb_init(void);
+void qmt_glb_fini(void);
/* lproc_quota.c */
-extern struct file_operations lprocfs_quota_seq_fops;
+extern const struct file_operations lprocfs_quota_seq_fops;
+/* qsd_lib.c */
+int qsd_glb_init(void);
+void qsd_glb_fini(void);
#endif /* _LQUOTA_INTERNAL_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff