* GPL HEADER END
*/
/*
- * Copyright (c) 2011, 2012, Intel, Inc.
+ * Copyright (c) 2012, 2017, Intel Corporation.
* Use is subject to license terms.
*
* Author: Johann Lombardi <johann.lombardi@intel.com>
* Author: Niu Yawei <yawei.niu@intel.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-
#define DEBUG_SUBSYSTEM S_LQUOTA
#include <linux/version.h>
#include "lquota_internal.h"
+struct kmem_cache *lqe_kmem;
+
+struct lu_kmem_descr lquota_caches[] = {
+ {
+ .ckd_cache = &lqe_kmem,
+ .ckd_name = "lqe_kmem",
+ .ckd_size = sizeof(struct lquota_entry)
+ },
+ {
+ .ckd_cache = NULL
+ }
+};
+
/* register lquota key */
LU_KEY_INIT_FINI(lquota, struct lquota_thread_info);
LU_CONTEXT_KEY_DEFINE(lquota, LCT_MD_THREAD | LCT_DT_THREAD | LCT_LOCAL);
LU_KEY_INIT_GENERIC(lquota);
+static inline __u32 qtype2acct_oid(int qtype)
+{
+ switch (qtype) {
+ case USRQUOTA:
+ return ACCT_USER_OID;
+ case GRPQUOTA:
+ return ACCT_GROUP_OID;
+ case PRJQUOTA:
+ return ACCT_PROJECT_OID;
+ }
+
+ return ACCT_GROUP_OID;
+}
+
/**
* Look-up accounting object to collect space usage information for user
* or group.
struct dt_object *obj = NULL;
ENTRY;
- lu_local_obj_fid(&qti->qti_fid,
- type == USRQUOTA ? ACCT_USER_OID : ACCT_GROUP_OID);
+ lu_local_obj_fid(&qti->qti_fid, qtype2acct_oid(type));
/* lookup the accounting object */
obj = dt_locate(env, dev, &qti->qti_fid);
RETURN(obj);
if (!dt_object_exists(obj)) {
- lu_object_put(env, &obj->do_lu);
+ dt_object_put(env, obj);
RETURN(ERR_PTR(-ENOENT));
}
CERROR("%s: failed to set up indexing operations for %s"
" acct object rc:%d\n",
dev->dd_lu_dev.ld_obd->obd_name,
- QTYPE_NAME(type), rc);
- lu_object_put(env, &obj->do_lu);
+ qtype_name(type), rc);
+ dt_object_put(env, obj);
RETURN(ERR_PTR(rc));
}
}
*
* \param env - is the environment passed by the caller
* \param dev - is the dt_device storing the slave index object
+ * \param pool - is the pool type, either LQUOTA_RES_MD or LQUOTA_RES_DT
* \param type - is the quota type, either USRQUOTA or GRPQUOTA
*/
static struct dt_object *quota_obj_lookup(const struct lu_env *env,
- struct dt_device *dev, int type)
+ struct dt_device *dev, int pool,
+ int type)
{
struct lquota_thread_info *qti = lquota_info(env);
struct dt_object *obj = NULL;
+ int is_md;
ENTRY;
+ is_md = lu_device_is_md(dev->dd_lu_dev.ld_site->ls_top_dev);
+ if ((is_md && pool == LQUOTA_RES_MD) ||
+ (!is_md && pool == LQUOTA_RES_DT))
+ qti->qti_fid.f_oid = qtype2slv_oid(type);
+ else
+ qti->qti_fid.f_oid = pool << 16 | qtype2slv_oid(type);
+
qti->qti_fid.f_seq = FID_SEQ_QUOTA;
- qti->qti_fid.f_oid = type == USRQUOTA ? LQUOTA_USR_OID : LQUOTA_GRP_OID;
qti->qti_fid.f_ver = 0;
/* lookup the quota object */
RETURN(obj);
if (!dt_object_exists(obj)) {
- lu_object_put(env, &obj->do_lu);
+ dt_object_put(env, obj);
RETURN(ERR_PTR(-ENOENT));
}
CERROR("%s: failed to set up indexing operations for %s"
" slave index object rc:%d\n",
dev->dd_lu_dev.ld_obd->obd_name,
- QTYPE_NAME(type), rc);
- lu_object_put(env, &obj->do_lu);
+ qtype_name(type), rc);
+ dt_object_put(env, obj);
RETURN(ERR_PTR(rc));
}
}
}
/*
+ * Iterate quota settings managed by \a obj.
+ *
+ * \param env - is the environment passed by the caller
+ * \param dev - is the backend device holding the quota object
+ * \param obj - is the quota object to be iterated
+ * \param oqctl - is the quota ioctl object passed in by caller
+ * \param buf - is the buffer to save the retrieved quota settings
+ * \param size - is the size of the buffer
+ * \param is_glb - true to iterate the global quota settings
+ * \param is_md - true to iterate LQUOTA_MD quota settings
+ */
+int lquota_obj_iter(const struct lu_env *env, struct dt_device *dev,
+ struct dt_object *obj, struct obd_quotactl *oqctl,
+ char *buf, int size, bool is_glb, bool is_md)
+{
+ struct lquota_thread_info *qti = lquota_info(env);
+ const struct dt_it_ops *iops;
+ struct dt_it *it;
+ struct dt_key *key;
+ struct dt_rec *rec = (struct dt_rec *)&qti->qti_rec;
+ __u64 offset;
+ bool skip = true;
+ int cur = 0, rc;
+ int rec_size;
+
+ ENTRY;
+
+ iops = &obj->do_index_ops->dio_it;
+ it = iops->init(env, obj, 0);
+ if (IS_ERR(it)) {
+ rc = PTR_ERR(it);
+ CERROR("%s: failed to initialize iterator: rc = %ld\n",
+ obj->do_lu.lo_dev->ld_obd->obd_name, PTR_ERR(it));
+ RETURN(rc);
+ }
+
+ rc = iops->load(env, it, 0);
+ if (rc <= 0) {
+ if (is_md)
+ oqctl->qc_iter_md_offset = 0;
+ else
+ oqctl->qc_iter_dt_offset = 0;
+
+ GOTO(out_fini, rc);
+ }
+
+ if ((is_md && oqctl->qc_iter_md_offset == 0) ||
+ (!is_md && oqctl->qc_iter_dt_offset == 0))
+ skip = false;
+
+ if (is_glb)
+ rec_size = sizeof(struct lquota_glb_rec);
+ else
+ rec_size = sizeof(struct lquota_acct_rec);
+
+ if (is_md)
+ offset = oqctl->qc_iter_md_offset;
+ else
+ offset = oqctl->qc_iter_dt_offset;
+
+ while ((size - cur) > (sizeof(__u64) + rec_size)) {
+ if (!skip)
+ goto get_setting;
+
+ if (offset == iops->store(env, it))
+ skip = false;
+ else {
+ rc = iops->next(env, it);
+ if (rc < 0) {
+ CERROR("%s: next failed: rc = %d\n",
+ obj->do_lu.lo_dev->ld_obd->obd_name, rc);
+ break;
+ }
+
+ /* reach the end */
+ if (rc > 0) {
+ if (is_md)
+ oqctl->qc_iter_md_offset = 0;
+ else
+ oqctl->qc_iter_dt_offset = 0;
+
+ break;
+ }
+
+ continue;
+ }
+
+get_setting:
+ key = iops->key(env, it);
+ if (IS_ERR(key)) {
+ CERROR("%s: failed to get key: rc = %ld\n",
+ obj->do_lu.lo_dev->ld_obd->obd_name,
+ PTR_ERR(key));
+
+ GOTO(out_fini, rc = PTR_ERR(key));
+ }
+
+ rc = iops->rec(env, it, rec, 0);
+ if (rc) {
+ CERROR("%s: failed to get rec: rc = %d\n",
+ obj->do_lu.lo_dev->ld_obd->obd_name, rc);
+ GOTO(out_fini, rc);
+ }
+
+ if (oqctl->qc_iter_qid_end != 0 &&
+ (*((__u64 *)key) < oqctl->qc_iter_qid_start ||
+ *((__u64 *)key) > oqctl->qc_iter_qid_end))
+ goto next;
+
+ memcpy(buf + cur, key, sizeof(__u64));
+ cur += sizeof(__u64);
+
+ memcpy(buf + cur, rec, rec_size);
+ cur += rec_size;
+
+next:
+ rc = iops->next(env, it);
+ if (rc < 0) {
+ CERROR("%s: next failed: rc = %d\n",
+ obj->do_lu.lo_dev->ld_obd->obd_name, rc);
+
+ GOTO(out_fini, rc);
+ }
+
+ /* reach the end */
+ if (rc > 0) {
+ if (is_md)
+ oqctl->qc_iter_md_offset = 0;
+ else
+ oqctl->qc_iter_dt_offset = 0;
+
+ break;
+ }
+
+ if (is_md)
+ oqctl->qc_iter_md_offset = iops->store(env, it);
+ else
+ oqctl->qc_iter_dt_offset = iops->store(env, it);
+ }
+
+out_fini:
+ if (rc >= 0) {
+ if (is_md)
+ oqctl->qc_iter_md_buflen = cur;
+ else
+ oqctl->qc_iter_dt_buflen = cur;
+
+ rc = 0;
+ }
+
+ iops->put(env, it);
+ iops->fini(env, it);
+ return rc < 0 ? rc : 0;
+}
+
+/*
* Helper routine to retrieve slave information.
* This function converts a quotactl request into quota/accounting object
* operations. It is independant of the slave stack which is only accessible
* \param oqctl - is the quotactl request
*/
int lquotactl_slv(const struct lu_env *env, struct dt_device *dev,
- struct obd_quotactl *oqctl)
+ struct obd_quotactl *oqctl, char *buffer, int size)
{
- struct lquota_thread_info *qti = lquota_info(env);
+ struct lquota_thread_info *qti = lquota_info(env);
__u64 key;
- struct dt_object *obj;
+ struct dt_object *obj, *obj_aux = NULL;
struct obd_dqblk *dqblk = &oqctl->qc_dqblk;
int rc;
ENTRY;
- if (oqctl->qc_cmd != Q_GETOQUOTA) {
+ if (oqctl->qc_cmd != Q_GETOQUOTA &&
+ oqctl->qc_cmd != LUSTRE_Q_ITEROQUOTA) {
/* as in many other places, dev->dd_lu_dev.ld_obd->obd_name
* point to an invalid obd_name, to be fixed in LU-1574 */
CERROR("%s: Unsupported quotactl command: %x\n",
RETURN(-EOPNOTSUPP);
}
- if (oqctl->qc_type != USRQUOTA && oqctl->qc_type != GRPQUOTA)
- /* no support for directory quota yet */
+ if (oqctl->qc_type < 0 || oqctl->qc_type >= LL_MAXQUOTAS)
RETURN(-EOPNOTSUPP);
/* qc_id is a 32-bit field while a key has 64 bits */
if (obj->do_index_ops == NULL)
GOTO(out, rc = -EINVAL);
+ if (oqctl->qc_cmd == LUSTRE_Q_ITEROQUOTA) {
+ if (lu_device_is_md(dev->dd_lu_dev.ld_site->ls_top_dev))
+ rc = lquota_obj_iter(env, dev, obj, oqctl, buffer, size,
+ false, true);
+ else
+ rc = lquota_obj_iter(env, dev, obj, oqctl, buffer, size,
+ false, false);
+
+ GOTO(out, rc);
+ }
+
/* lookup record storing space accounting information for this ID */
rc = dt_lookup(env, obj, (struct dt_rec *)&qti->qti_acct_rec,
- (struct dt_key *)&key, BYPASS_CAPA);
+ (struct dt_key *)&key);
if (rc < 0)
GOTO(out, rc);
dqblk->dqb_curinodes = qti->qti_acct_rec.ispace;
dqblk->dqb_valid = QIF_USAGE;
- lu_object_put(env, &obj->do_lu);
+ dt_object_put(env, obj);
/* Step 2: collect enforcement information */
- obj = quota_obj_lookup(env, dev, oqctl->qc_type);
+ if (lu_device_is_md(dev->dd_lu_dev.ld_site->ls_top_dev))
+ obj = quota_obj_lookup(env, dev, LQUOTA_RES_MD, oqctl->qc_type);
+ else
+ obj = quota_obj_lookup(env, dev, LQUOTA_RES_DT, oqctl->qc_type);
+
if (IS_ERR(obj))
RETURN(0);
if (obj->do_index_ops == NULL)
memset(&qti->qti_slv_rec, 0, sizeof(qti->qti_slv_rec));
/* lookup record storing enforcement information for this ID */
rc = dt_lookup(env, obj, (struct dt_rec *)&qti->qti_slv_rec,
- (struct dt_key *)&key, BYPASS_CAPA);
+ (struct dt_key *)&key);
if (rc < 0 && rc != -ENOENT)
GOTO(out, rc = 0);
if (lu_device_is_md(dev->dd_lu_dev.ld_site->ls_top_dev)) {
dqblk->dqb_ihardlimit = qti->qti_slv_rec.qsr_granted;
dqblk->dqb_bhardlimit = 0;
+
+ obj_aux = quota_obj_lookup(env, dev, LQUOTA_RES_DT,
+ oqctl->qc_type);
+ if (IS_ERR(obj_aux)) {
+ obj_aux = NULL;
+ GOTO(out, rc = 0);
+ }
+
+ if (obj_aux->do_index_ops == NULL)
+ GOTO(out, rc = 0);
+
+ memset(&qti->qti_slv_rec, 0, sizeof(qti->qti_slv_rec));
+ rc = dt_lookup(env, obj_aux, (struct dt_rec *)&qti->qti_slv_rec,
+ (struct dt_key *)&key);
+ if (rc < 0 && rc != -ENOENT)
+ GOTO(out, rc = 0);
+
+ dqblk->dqb_bhardlimit = qti->qti_slv_rec.qsr_granted;
} else {
dqblk->dqb_ihardlimit = 0;
dqblk->dqb_bhardlimit = qti->qti_slv_rec.qsr_granted;
GOTO(out, rc = 0);
out:
- lu_object_put(env, &obj->do_lu);
- return rc;
+ dt_object_put(env, obj);
+ if (obj_aux != NULL)
+ dt_object_put(env, obj_aux);
+ return rc;
}
EXPORT_SYMBOL(lquotactl_slv);
+static inline __u8 qtype2lqtype(int qtype)
+{
+ switch (qtype) {
+ case USRQUOTA:
+ return LQUOTA_TYPE_USR;
+ case GRPQUOTA:
+ return LQUOTA_TYPE_GRP;
+ case PRJQUOTA:
+ return LQUOTA_TYPE_PRJ;
+ }
+
+ return LQUOTA_TYPE_GRP;
+}
+
+static inline int lqtype2qtype(int lqtype)
+{
+ switch (lqtype) {
+ case LQUOTA_TYPE_USR:
+ return USRQUOTA;
+ case LQUOTA_TYPE_GRP:
+ return GRPQUOTA;
+ case LQUOTA_TYPE_PRJ:
+ return PRJQUOTA;
+ }
+
+ return GRPQUOTA;
+}
+
/**
* Helper routine returning the FID associated with the global index storing
- * quota settings for the storage pool \pool_id, resource type \pool_type and
+ * quota settings for default storage pool, resource type \pool_type and
* the quota type \quota_type.
*/
-void lquota_generate_fid(struct lu_fid *fid, int pool_id, int pool_type,
- int quota_type)
+void lquota_generate_fid(struct lu_fid *fid, int pool_type, int quota_type)
{
- __u8 qtype;
-
- qtype = (quota_type == USRQUOTA) ? LQUOTA_TYPE_USR : LQUOTA_TYPE_GRP;
+ __u8 lqtype = qtype2lqtype(quota_type);
fid->f_seq = FID_SEQ_QUOTA_GLB;
- fid->f_oid = (qtype << 24) | (pool_type << 16) | (__u16)pool_id;
+ fid->f_oid = (lqtype << 24) | (pool_type << 16);
fid->f_ver = 0;
}
/**
- * Helper routine used to extract pool ID, pool type and quota type from a
+ * Helper routine used to extract pool type and quota type from a
* given FID.
*/
-int lquota_extract_fid(struct lu_fid *fid, int *pool_id, int *pool_type,
- int *quota_type)
+int lquota_extract_fid(const struct lu_fid *fid,
+ enum lquota_res_type *pool_type,
+ enum lquota_type *quota_type)
{
- unsigned int tmp;
+ unsigned int lqtype;
ENTRY;
if (fid->f_seq != FID_SEQ_QUOTA_GLB)
RETURN(-EINVAL);
- if (pool_id != NULL) {
- tmp = fid->f_oid & 0xffffU;
- if (tmp != 0)
- /* we only support pool ID 0 for the time being */
- RETURN(-ENOTSUPP);
- *pool_id = tmp;
- }
-
if (pool_type != NULL) {
- tmp = (fid->f_oid >> 16) & 0xffU;
- if (tmp >= LQUOTA_LAST_RES)
+ lqtype = (fid->f_oid >> 16) & 0xffU;
+ if (lqtype >= LQUOTA_LAST_RES)
RETURN(-ENOTSUPP);
- *pool_type = tmp;
+ *pool_type = lqtype;
}
if (quota_type != NULL) {
- tmp = fid->f_oid >> 24;
- if (tmp >= LQUOTA_TYPE_MAX)
+ lqtype = fid->f_oid >> 24;
+ if (lqtype >= LQUOTA_TYPE_MAX)
RETURN(-ENOTSUPP);
- *quota_type = (tmp == LQUOTA_TYPE_USR) ? USRQUOTA : GRPQUOTA;
+ *quota_type = lqtype2qtype(lqtype);
}
RETURN(0);
}
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
-/* Index features supported by the global index objects.
- * We actually use one dt_index_features structure for each quota combination
- * of quota type x [inode, block] to allow the ldiskfs OSD to recognize those
- * objects and to handle the conversion from the old administrative quota file
- * format */
-struct dt_index_features dt_quota_iusr_features;
-EXPORT_SYMBOL(dt_quota_iusr_features);
-struct dt_index_features dt_quota_busr_features;
-EXPORT_SYMBOL(dt_quota_busr_features);
-struct dt_index_features dt_quota_igrp_features;
-EXPORT_SYMBOL(dt_quota_igrp_features);
-struct dt_index_features dt_quota_bgrp_features;
-EXPORT_SYMBOL(dt_quota_bgrp_features);
-
-/**
- * Helper routine returning the right index feature structure to be used
- * depending on the FID of the global index.
- */
-const struct dt_index_features *glb_idx_feature(struct lu_fid *fid)
-{
- int res_type, quota_type, rc;
-
- rc = lquota_extract_fid(fid, NULL, &res_type, "a_type);
- if (rc)
- return ERR_PTR(rc);
-
- if (quota_type == USRQUOTA) {
- if (res_type == LQUOTA_RES_MD)
- return &dt_quota_iusr_features;
- else
- return &dt_quota_busr_features;
- } else {
- if (res_type == LQUOTA_RES_MD)
- return &dt_quota_igrp_features;
- else
- return &dt_quota_bgrp_features;
- }
-}
-#else
-#warning "remove old quota compatibility code"
-#endif
-
-static int __init init_lquota(void)
+static int __init lquota_init(void)
{
int rc;
+ ENTRY;
- /* call old quota module init function */
- rc = init_lustre_quota();
+ rc = libcfs_setup();
if (rc)
return rc;
- /* new quota initialization */
lquota_key_init_generic(&lquota_thread_key, NULL);
lu_context_key_register(&lquota_thread_key);
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
- dt_quota_iusr_features = dt_quota_busr_features = dt_quota_glb_features;
- dt_quota_igrp_features = dt_quota_bgrp_features = dt_quota_glb_features;
-#else
-#warning "remove old quota compatibility code"
-#endif
+ rc = lu_kmem_init(lquota_caches);
+ if (rc)
+ GOTO(out_key, rc);
+
+ rc = qmt_glb_init();
+ if (rc)
+ GOTO(out_caches, rc);
+
+ rc = qsd_glb_init();
+ if (rc)
+ GOTO(out_qmt, rc);
+
+ RETURN(0);
- return 0;
+out_qmt:
+ qmt_glb_fini();
+out_caches:
+ lu_kmem_fini(lquota_caches);
+out_key:
+ lu_context_key_degister(&lquota_thread_key);
+ return rc;
}
-static void exit_lquota(void)
+static void __exit lquota_exit(void)
{
- /* call old quota module exit function */
- exit_lustre_quota();
-
+ qsd_glb_fini();
+ qmt_glb_fini();
+ lu_kmem_fini(lquota_caches);
lu_context_key_degister(&lquota_thread_key);
}
-MODULE_AUTHOR("Intel, Inc. <http://www.intel.com/>");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
MODULE_DESCRIPTION("Lustre Quota");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
-cfs_module(lquota, "2.4.0", init_lquota, exit_lquota);
+module_init(lquota_init);
+module_exit(lquota_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff