* GPL HEADER END
*/
/*
- * Copyright (c) 2011, 2012, Intel, Inc.
+ * Copyright (c) 2012, 2014, 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);
/* 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);
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);
}
EXPORT_SYMBOL(lquotactl_slv);
-static int __init init_lquota(void)
+/**
+ * Helper routine returning the FID associated with the global index storing
+ * quota settings for the storage pool \pool_id, 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)
{
- int rc;
+ __u8 qtype;
- /* call old quota module init function */
- rc = init_lustre_quota();
+ qtype = (quota_type == USRQUOTA) ? LQUOTA_TYPE_USR : LQUOTA_TYPE_GRP;
+
+ fid->f_seq = FID_SEQ_QUOTA_GLB;
+ fid->f_oid = (qtype << 24) | (pool_type << 16) | (__u16)pool_id;
+ fid->f_ver = 0;
+}
+
+/**
+ * Helper routine used to extract pool ID, pool type and quota type from a
+ * given FID.
+ */
+int lquota_extract_fid(const struct lu_fid *fid, int *pool_id, int *pool_type,
+ int *quota_type)
+{
+ unsigned int tmp;
+ 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)
+ RETURN(-ENOTSUPP);
+
+ *pool_type = tmp;
+ }
+
+ if (quota_type != NULL) {
+ tmp = fid->f_oid >> 24;
+ if (tmp >= LQUOTA_TYPE_MAX)
+ RETURN(-ENOTSUPP);
+
+ *quota_type = (tmp == LQUOTA_TYPE_USR) ? USRQUOTA : GRPQUOTA;
+ }
+
+ RETURN(0);
+}
+
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 56, 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 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;
+ }
+}
+#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 56, 0) */
+
+static int __init init_lquota(void)
+{
+ int rc;
+ ENTRY;
- /* new quota initialization */
lquota_key_init_generic(&lquota_thread_key, NULL);
lu_context_key_register(&lquota_thread_key);
- return 0;
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 56, 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;
+#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);
+
+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)
{
- /* 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("Intel Corporation <http://www.intel.com/>");
MODULE_DESCRIPTION("Lustre Quota");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
-cfs_module(lquota, "2.4.0", init_lquota, exit_lquota);
+module_init(init_lquota);
+module_exit(exit_lquota);