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/*
Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include "xlator.h"
#include "call-stub.h"
#include "defaults.h"
#include "byte-order.h"
#include "common-utils.h"
#include "quota-mem-types.h"
#define QUOTA_XATTR_PREFIX "trusted."
#define DIRTY "dirty"
#define SIZE "size"
#define CONTRIBUTION "contri"
#define VAL_LENGTH 8
#define READDIR_BUF 4096
#define QUOTA_UPDATE_USAGE_KEY "quota-update-usage"
#define QUOTA_LIMIT_KEY "trusted.glusterfs.quota.limit-set"
#define QUOTA_WIND_IF_DISABLED(quota_on, frame, this, fop, params ...) \
do { \
if (!quota_on) { \
STACK_WIND_TAIL (frame, FIRST_CHILD(this), \
FIRST_CHILD(this)->fops->fop, \
params); \
return 0; \
} \
} while (0)
#define DID_REACH_LIMIT(lim, prev_size, cur_size) \
((cur_size) >= (lim) && (prev_size) < (lim))
#define QUOTA_SAFE_INCREMENT(lock, var) \
do { \
LOCK (lock); \
var ++; \
UNLOCK (lock); \
} while (0)
#define QUOTA_SAFE_DECREMENT(lock, var) \
do { \
LOCK (lock); \
var --; \
UNLOCK (lock); \
} while (0)
#define QUOTA_ALLOC_OR_GOTO(var, type, label) \
do { \
var = GF_CALLOC (sizeof (type), 1, \
gf_quota_mt_##type); \
if (!var) { \
gf_log ("", GF_LOG_ERROR, \
"out of memory"); \
ret = -1; \
goto label; \
} \
} while (0);
#define QUOTA_STACK_UNWIND(fop, frame, params...) \
do { \
quota_local_t *_local = NULL; \
xlator_t *_this = NULL; \
if (frame) { \
_local = frame->local; \
_this = frame->this; \
frame->local = NULL; \
} \
STACK_UNWIND_STRICT (fop, frame, params); \
quota_local_cleanup (_this, _local); \
} while (0)
#define QUOTA_FREE_CONTRIBUTION_NODE(_contribution) \
do { \
list_del (&_contribution->contri_list); \
GF_FREE (_contribution); \
} while (0)
#define GET_CONTRI_KEY(var, _vol_name, _gfid, _ret) \
do { \
char _gfid_unparsed[40]; \
uuid_unparse (_gfid, _gfid_unparsed); \
_ret = gf_asprintf (var, QUOTA_XATTR_PREFIX \
"%s.%s." CONTRIBUTION, \
_vol_name, _gfid_unparsed); \
} while (0)
#define GET_CONTRI_KEY_OR_GOTO(var, _vol_name, _gfid, label) \
do { \
GET_CONTRI_KEY(var, _vol_name, _gfid, ret); \
if (ret == -1) \
goto label; \
} while (0)
#define GET_DIRTY_KEY_OR_GOTO(var, _vol_name, label) \
do { \
ret = gf_asprintf (var, QUOTA_XATTR_PREFIX \
"%s." DIRTY, _vol_name); \
if (ret == -1) \
goto label; \
} while (0)
struct quota_dentry {
char *name;
uuid_t par;
struct list_head next;
};
typedef struct quota_dentry quota_dentry_t;
struct quota_inode_ctx {
int64_t size;
int64_t hard_lim;
int64_t soft_lim;
struct iatt buf;
struct list_head parents;
struct timeval tv;
struct timeval prev_log;
gf_lock_t lock;
};
typedef struct quota_inode_ctx quota_inode_ctx_t;
struct quota_local {
gf_lock_t lock;
uint32_t validate_count;
uint32_t link_count;
loc_t loc;
loc_t oldloc;
loc_t newloc;
loc_t validate_loc;
int64_t delta;
int32_t op_ret;
int32_t op_errno;
int64_t size;
char just_validated;
inode_t *inode;
call_stub_t *stub;
};
typedef struct quota_local quota_local_t;
struct qd_vols_conf {
char *name;
inode_table_t *itable;
uint32_t log_timeout;
gf_boolean_t threads_status;
double default_soft_lim;
gf_lock_t lock;
loc_t root_loc;
uint32_t soft_timeout;
uint32_t hard_timeout;
struct list_head limit_head;
call_frame_t *frame;
};
typedef struct qd_vols_conf qd_vols_conf_t;
struct quota_priv {
double default_soft_lim;
uint32_t log_timeout;
uint32_t soft_timeout;
uint32_t hard_timeout;
gf_boolean_t quota_on;
gf_boolean_t consider_statfs;
qd_vols_conf_t **qd_vols_conf;
gf_lock_t lock;
};
typedef struct quota_priv quota_priv_t;
struct limits {
struct list_head limit_list;
char *path;
int64_t value;
uuid_t gfid;
int64_t prev_size;
struct timeval prev_log_tv;
int64_t hard_lim;
int64_t soft_lim;
struct timeval expire;
uint32_t timeout;
};
typedef struct limits limits_t;
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