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import mars-119.tgz

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This commit is contained in:
Thomas Schoebel-Theuer 2011-07-22 11:43:40 +01:00
parent 62ed7174e8
commit 866ac28322
14 changed files with 1568 additions and 1446 deletions
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9
Kconfig
View File

@ -5,7 +5,7 @@ config MARS
tristate "storage system MARS"
default n
---help---
Experimental storage System.
Experimental storage System. Only compile as modules!
config MARS_HUNG
tristate "hangup on kernel stacktrace (only for debugging)"
@ -98,13 +98,6 @@ config MARS_COPY
---help---
Experimental storage System.
config MARS_TEST
tristate "provisionary TESTBED"
depends on MARS
default m
---help---
Experimental storage System.
config MARS_LIGHT
tristate "MARS Light main"
depends on MARS

11
Makefile
View File

@ -2,8 +2,10 @@
# Makefile for MARS
#
obj-$(CONFIG_MARS) += brick.o lib_log.o \
mars_generic.o mars_net.o mars_proc.o
obj-$(CONFIG_MARS) += brick.o \
mars_generic.o sy_old/sy_generic.o \
mars_net.o sy_old/sy_net.o \
sy_old/mars_proc.o
obj-$(CONFIG_MARS_DUMMY) += mars_dummy.o
obj-$(CONFIG_MARS_CHECK) += mars_check.o
obj-$(CONFIG_MARS_IF) += mars_if.o
@ -12,13 +14,12 @@ obj-$(CONFIG_MARS_AIO) += mars_aio.o
obj-$(CONFIG_MARS_SIO) += mars_sio.o
obj-$(CONFIG_MARS_BUF) += mars_buf.o
obj-$(CONFIG_MARS_USEBUF) += mars_usebuf.o
obj-$(CONFIG_MARS_TRANS_LOGGER) += mars_trans_logger.o
obj-$(CONFIG_MARS_TRANS_LOGGER) += mars_trans_logger.o lib_log.o
obj-$(CONFIG_MARS_SERVER) += mars_server.o
obj-$(CONFIG_MARS_CLIENT) += mars_client.o
obj-$(CONFIG_MARS_COPY) += mars_copy.o
obj-$(CONFIG_MARS_TEST) += mars_test.o
obj-$(CONFIG_MARS_LIGHT) += mars_light.o
obj-$(CONFIG_MARS_LIGHT) += sy_old/mars_light.o
#mars-objs := mars_generic.o

135
mars.h
View File

@ -9,6 +9,8 @@
#define msleep msleep_interruptible
extern long long mars_global_memlimit;
/////////////////////////////////////////////////////////////////////////
// include the generic brick infrastructure
@ -313,135 +315,22 @@ static const struct generic_aspect_type *BRICK##_aspect_types[BRICK_OBJ_MAX] = {
extern const struct meta mars_info_meta[];
extern const struct meta mars_mref_meta[];
extern int mars_digest_size;
extern void mars_digest(void *digest, void *data, int len);
/////////////////////////////////////////////////////////////////////////
extern long long mars_global_memlimit;
extern struct mars_global *mars_global;
extern void _mars_trigger(void);
#define mars_trigger() do { MARS_INF("trigger...\n"); _mars_trigger(); } while (0)
extern int mars_power_button(struct mars_brick *brick, bool val, bool force_off);
extern void mars_power_led_on(struct mars_brick *brick, bool val);
extern void mars_power_led_off(struct mars_brick *brick, bool val);
extern int mars_power_button_recursive(struct mars_brick *brick, bool val, bool force_off, int timeout);
/////////////////////////////////////////////////////////////////////////
#ifdef _STRATEGY // call this only in strategy bricks, never in ordinary bricks
#define MARS_ARGV_MAX 4
#define MARS_PATH_MAX 256
extern char *my_id(void);
#define MARS_DENT(TYPE) \
struct list_head dent_link; \
struct list_head brick_list; \
struct TYPE *d_parent; \
char *d_argv[MARS_ARGV_MAX]; /* for internal use, will be automatically deallocated*/ \
char *d_args; /* ditto uninterpreted */ \
char *d_name; /* current path component */ \
char *d_rest; /* some "meaningful" rest of d_name*/ \
char *d_path; /* full absolute path */ \
int d_namelen; \
int d_pathlen; \
int d_depth; \
unsigned int d_type; /* from readdir() => often DT_UNKNOWN => don't rely on it, use new_stat.mode instead */ \
int d_class; /* for pre-grouping order */ \
int d_serial; /* for pre-grouping order */ \
int d_version; /* dynamic programming per call of mars_ent_work() */ \
char d_once_error; \
bool d_killme; \
struct kstat new_stat; \
struct kstat old_stat; \
char *new_link; \
char *old_link; \
struct mars_global *d_global; \
int d_logfile_serial; \
void *d_private;
struct mars_dent {
MARS_DENT(mars_dent);
};
extern const struct meta mars_timespec_meta[];
extern const struct meta mars_kstat_meta[];
extern const struct meta mars_dent_meta[];
struct mars_global {
struct rw_semaphore dent_mutex;
struct rw_semaphore brick_mutex;
struct generic_switch global_power;
struct list_head dent_anchor;
struct list_head brick_anchor;
volatile bool main_trigger;
wait_queue_head_t main_event;
//void *private;
};
/////////////////////////////////////////////////////////////////////////
typedef int (*mars_dent_checker)(struct mars_dent *parent, const char *name, int namlen, unsigned int d_type, int *prefix, int *serial);
typedef int (*mars_dent_worker)(struct mars_global *global, struct mars_dent *dent, bool direction);
#ifdef _STRATEGY
#include "sy_old/strategy.h"
#endif
extern int mars_dent_work(struct mars_global *global, char *dirname, int allocsize, mars_dent_checker checker, mars_dent_worker worker, void *buf, int maxdepth);
extern struct mars_dent *mars_find_dent(struct mars_global *global, const char *path);
extern void mars_kill_dent(struct mars_dent *dent);
extern void mars_free_dent(struct mars_dent *dent);
extern void mars_free_dent_all(struct list_head *anchor);
// low-level brick instantiation
extern struct mars_brick *mars_find_brick(struct mars_global *global, const void *brick_type, const char *path);
extern struct mars_brick *mars_make_brick(struct mars_global *global, struct mars_dent *belongs, const void *_brick_type, const char *path, const char *name);
extern int mars_free_brick(struct mars_brick *brick);
extern int mars_kill_brick(struct mars_brick *brick);
// mid-level brick instantiation (identity is based on path strings)
extern char *vpath_make(const char *fmt, va_list *args);
extern char *path_make(const char *fmt, ...);
extern char *backskip_replace(const char *path, char delim, bool insert, const char *fmt, ...);
extern struct mars_brick *path_find_brick(struct mars_global *global, const void *brick_type, const char *fmt, ...);
/* Create a new brick and connect its inputs to a set of predecessors.
* When @timeout > 0, switch on the brick as well as its predecessors.
extern void mars_power_led_on(struct generic_brick *brick, bool val);
extern void mars_power_led_off(struct generic_brick *brick, bool val);
/* this should disappear!
*/
extern struct mars_brick *make_brick_all(
struct mars_global *global,
struct mars_dent *belongs,
void (*setup_fn)(struct mars_brick *brick, void *private),
void *private,
int timeout,
const char *new_name,
const struct generic_brick_type *new_brick_type,
const struct generic_brick_type *prev_brick_type[],
const char *switch_fmt,
const char *new_fmt,
const char *prev_fmt[],
int prev_count,
...
);
extern void (*_mars_trigger)(void);
#define mars_trigger() do { MARS_INF("trigger...\n"); if (_mars_trigger) _mars_trigger(); } while (0)
// general MARS infrastructure
#define MARS_ERR_ONCE(dent, args...) if (!dent->d_once_error++) MARS_ERR(args)
/* General fs wrappers (for abstraction)
*/
extern int mars_stat(const char *path, struct kstat *stat, bool use_lstat);
extern int mars_mkdir(const char *path);
extern int mars_symlink(const char *oldpath, const char *newpath, const struct timespec *stamp, uid_t uid);
extern int mars_rename(const char *oldpath, const char *newpath);
extern int mars_chmod(const char *path, mode_t mode);
extern int mars_lchown(const char *path, uid_t uid);
#endif // _STRATEGY
/////////////////////////////////////////////////////////////////////////
/* Some special brick types for avoidance of cyclic references.
*

1276
mars_generic.c
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File diff suppressed because it is too large Load Diff

97
mars_net.c
View File

@ -8,10 +8,12 @@
#include <linux/module.h>
#include <linux/string.h>
#define _STRATEGY
#include "mars.h"
#include "mars_net.h"
static
void mars_check_meta(const struct meta *meta, void *data);
/* Low-level network traffic
*/
@ -32,33 +34,6 @@ struct mars_tcp_params default_tcp_params = {
};
EXPORT_SYMBOL(default_tcp_params);
char *mars_translate_hostname(struct mars_global *global, const char *name)
{
const char *res = name;
struct mars_dent *test;
char *tmp;
if (unlikely(!global)) {
goto done;
}
tmp = path_make("/mars/ips/ip-%s", name);
if (unlikely(!tmp)) {
goto done;
}
test = mars_find_dent(global, tmp);
if (test && test->new_link) {
MARS_DBG("'%s' => '%s'\n", tmp, test->new_link);
res = test->new_link;
}
kfree(tmp);
done:
return kstrdup(res, GFP_MARS);
}
EXPORT_SYMBOL_GPL(mars_translate_hostname);
static void _check(int status)
{
if (status < 0) {
@ -79,7 +54,11 @@ int mars_create_sockaddr(struct sockaddr_storage *addr, const char *spec)
/* Try to translate hostnames to IPs if possible.
*/
new_spec = mars_translate_hostname(mars_global, spec);
if (mars_translate_hostname) {
new_spec = mars_translate_hostname(spec);
} else {
new_spec = kstrdup(spec, GFP_MARS);
}
tmp_spec = new_spec;
/* This is PROVISIONARY!
@ -335,12 +314,7 @@ int _mars_send_struct(struct socket **sock, void *data, const struct meta *meta,
/* Automatically keep the lamport clock correct.
*/
if (meta == mars_cmd_meta) {
struct timespec *stamp = &((struct mars_cmd*)data)->cmd_stamp;
get_lamport(stamp);
} else if (meta == mars_timespec_meta) {
set_lamport(data);
}
mars_check_meta(meta, data);
status = 0;
switch (meta->field_type) {
@ -544,8 +518,7 @@ int _mars_recv_struct(struct socket **sock, void *data, const struct meta *meta,
done:
if (status >= 0) {
status = count;
if (meta == mars_timespec_meta)
set_lamport(data);
mars_check_meta(meta, data);
} else {
MARS_WRN("status = %d\n", status);
}
@ -573,46 +546,19 @@ const struct meta mars_cmd_meta[] = {
};
EXPORT_SYMBOL_GPL(mars_cmd_meta);
int mars_send_dent_list(struct socket **sock, struct list_head *anchor)
static
void mars_check_meta(const struct meta *meta, void *data)
{
struct list_head *tmp;
struct mars_dent *dent;
int status = 0;
for (tmp = anchor->next; tmp != anchor; tmp = tmp->next) {
dent = container_of(tmp, struct mars_dent, dent_link);
status = mars_send_struct(sock, dent, mars_dent_meta);
if (status < 0)
break;
/* Automatically keep the lamport clock correct.
*/
if (meta == mars_cmd_meta) {
struct timespec *stamp = &((struct mars_cmd*)data)->cmd_stamp;
get_lamport(stamp);
} else if (meta == mars_timespec_meta) {
set_lamport(data);
}
if (status >= 0) { // send EOF
status = mars_send_struct(sock, NULL, mars_dent_meta);
}
return status;
}
EXPORT_SYMBOL_GPL(mars_send_dent_list);
int mars_recv_dent_list(struct socket **sock, struct list_head *anchor)
{
int status;
for (;;) {
struct mars_dent *dent = kzalloc(sizeof(struct mars_dent), GFP_MARS);
if (!dent)
return -ENOMEM;
//MARS_IO("\n");
status = mars_recv_struct(sock, dent, mars_dent_meta);
if (status <= 0) {
kfree(dent);
goto done;
}
list_add_tail(&dent->dent_link, anchor);
INIT_LIST_HEAD(&dent->brick_list);
}
done:
return status;
}
EXPORT_SYMBOL_GPL(mars_recv_dent_list);
int mars_send_mref(struct socket **sock, struct mref_object *mref)
@ -705,6 +651,9 @@ EXPORT_SYMBOL_GPL(mars_recv_cb);
////////////////// module init stuff /////////////////////////
char *(*mars_translate_hostname)(const char *name) = NULL;
EXPORT_SYMBOL_GPL(mars_translate_hostname);
static int __init _init_net(void)
{
MARS_INF("init_net()\n");

2
mars_net.h
View File

@ -44,7 +44,7 @@ struct mars_cmd {
extern const struct meta mars_cmd_meta[];
extern char *mars_translate_hostname(struct mars_global *global, const char *name);
extern char *(*mars_translate_hostname)(const char *name);
/* Low-level network traffic
*/

5
sy_old/README Normal file
View File

@ -0,0 +1,5 @@
This is ugly code from a first prototype trial.
It will disappear as soon as the new strategy layer has been
implemented. The new system will use an interpreter for automated
pattern matching and triggering actions, in a much more generic
fashion than hand-crafted here.

19
mars_light.c → sy_old/mars_light.c
View File

@ -14,20 +14,19 @@
#include <linux/genhd.h>
#include <linux/blkdev.h>
#define _STRATEGY
#include "mars.h"
#include "strategy.h"
#include <linux/kthread.h>
#include <linux/wait.h>
// used brick types
#include "mars_server.h"
#include "mars_client.h"
#include "mars_copy.h"
#include "mars_bio.h"
#include "mars_aio.h"
#include "mars_trans_logger.h"
#include "mars_if.h"
#include "../mars_server.h"
#include "../mars_client.h"
#include "../mars_copy.h"
#include "../mars_bio.h"
#include "../mars_aio.h"
#include "../mars_trans_logger.h"
#include "../mars_if.h"
#if 0
#define inline __attribute__((__noinline__))
@ -788,7 +787,7 @@ int remote_thread(void *data)
if (!peer)
return -1;
real_peer = mars_translate_hostname(peer->global, peer->peer);
real_peer = mars_translate_hostname(peer->peer);
MARS_INF("-------- remote thread starting on peer '%s' (%s)\n", peer->peer, real_peer);
//fake_mm();

3
mars_proc.c → sy_old/mars_proc.c
View File

@ -11,8 +11,7 @@
#include <linux/sysctl.h>
#include <linux/uaccess.h>
#define _STRATEGY
#include "mars.h"
#include "strategy.h"
#include "mars_proc.h"
mars_info_fn mars_info = NULL;

2
mars_proc.h → sy_old/mars_proc.h
View File

@ -2,8 +2,6 @@
#ifndef MARS_PROC_H
#define MARS_PROC_H
#include "brick.h"
typedef char * (*mars_info_fn)(void);
extern mars_info_fn mars_info;

0
mars_test.c → sy_old/mars_test.c
View File

127
sy_old/strategy.h Normal file
View File

@ -0,0 +1,127 @@
// (c) 2010 Thomas Schoebel-Theuer / 1&1 Internet AG
// OLD CODE => will disappear!
#ifndef _OLD_STRATEGY
#define _OLD_STRATEGY
#define _STRATEGY // call this only in strategy bricks, never in ordinary bricks
#include "../mars.h"
#define MARS_ARGV_MAX 4
#define MARS_PATH_MAX 256
extern char *my_id(void);
#define MARS_DENT(TYPE) \
struct list_head dent_link; \
struct list_head brick_list; \
struct TYPE *d_parent; \
char *d_argv[MARS_ARGV_MAX]; /* for internal use, will be automatically deallocated*/ \
char *d_args; /* ditto uninterpreted */ \
char *d_name; /* current path component */ \
char *d_rest; /* some "meaningful" rest of d_name*/ \
char *d_path; /* full absolute path */ \
int d_namelen; \
int d_pathlen; \
int d_depth; \
unsigned int d_type; /* from readdir() => often DT_UNKNOWN => don't rely on it, use new_stat.mode instead */ \
int d_class; /* for pre-grouping order */ \
int d_serial; /* for pre-grouping order */ \
int d_version; /* dynamic programming per call of mars_ent_work() */ \
char d_once_error; \
bool d_killme; \
struct kstat new_stat; \
struct kstat old_stat; \
char *new_link; \
char *old_link; \
struct mars_global *d_global; \
int d_logfile_serial; \
void *d_private;
struct mars_dent {
MARS_DENT(mars_dent);
};
extern const struct meta mars_kstat_meta[];
extern const struct meta mars_dent_meta[];
struct mars_global {
struct rw_semaphore dent_mutex;
struct rw_semaphore brick_mutex;
struct generic_switch global_power;
struct list_head dent_anchor;
struct list_head brick_anchor;
volatile bool main_trigger;
wait_queue_head_t main_event;
//void *private;
};
typedef int (*mars_dent_checker)(struct mars_dent *parent, const char *name, int namlen, unsigned int d_type, int *prefix, int *serial);
typedef int (*mars_dent_worker)(struct mars_global *global, struct mars_dent *dent, bool direction);
extern int mars_dent_work(struct mars_global *global, char *dirname, int allocsize, mars_dent_checker checker, mars_dent_worker worker, void *buf, int maxdepth);
extern struct mars_dent *mars_find_dent(struct mars_global *global, const char *path);
extern void mars_kill_dent(struct mars_dent *dent);
extern void mars_free_dent(struct mars_dent *dent);
extern void mars_free_dent_all(struct list_head *anchor);
// low-level brick instantiation
extern struct mars_brick *mars_find_brick(struct mars_global *global, const void *brick_type, const char *path);
extern struct mars_brick *mars_make_brick(struct mars_global *global, struct mars_dent *belongs, const void *_brick_type, const char *path, const char *name);
extern int mars_free_brick(struct mars_brick *brick);
extern int mars_kill_brick(struct mars_brick *brick);
// mid-level brick instantiation (identity is based on path strings)
extern char *vpath_make(const char *fmt, va_list *args);
extern char *path_make(const char *fmt, ...);
extern char *backskip_replace(const char *path, char delim, bool insert, const char *fmt, ...);
extern struct mars_brick *path_find_brick(struct mars_global *global, const void *brick_type, const char *fmt, ...);
/* Create a new brick and connect its inputs to a set of predecessors.
* When @timeout > 0, switch on the brick as well as its predecessors.
*/
extern struct mars_brick *make_brick_all(
struct mars_global *global,
struct mars_dent *belongs,
void (*setup_fn)(struct mars_brick *brick, void *private),
void *private,
int timeout,
const char *new_name,
const struct generic_brick_type *new_brick_type,
const struct generic_brick_type *prev_brick_type[],
const char *switch_fmt,
const char *new_fmt,
const char *prev_fmt[],
int prev_count,
...
);
// general MARS infrastructure
#define MARS_ERR_ONCE(dent, args...) if (!dent->d_once_error++) MARS_ERR(args)
/* General fs wrappers (for abstraction)
*/
extern int mars_stat(const char *path, struct kstat *stat, bool use_lstat);
extern int mars_mkdir(const char *path);
extern int mars_symlink(const char *oldpath, const char *newpath, const struct timespec *stamp, uid_t uid);
extern int mars_rename(const char *oldpath, const char *newpath);
extern int mars_chmod(const char *path, mode_t mode);
extern int mars_lchown(const char *path, uid_t uid);
/////////////////////////////////////////////////////////////////////////
extern struct mars_global *mars_global;
extern int mars_power_button(struct mars_brick *brick, bool val, bool force_off);
extern int mars_power_button_recursive(struct mars_brick *brick, bool val, bool force_off, int timeout);
/* Crypto stuff
*/
extern int mars_digest_size;
extern void mars_digest(void *digest, void *data, int len);
#endif

1225
sy_old/sy_generic.c Normal file
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File diff suppressed because it is too large Load Diff

103
sy_old/sy_net.c Normal file
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@ -0,0 +1,103 @@
// (c) 2011 Thomas Schoebel-Theuer / 1&1 Internet AG
//#define BRICK_DEBUGGING
//#define MARS_DEBUGGING
//#define IO_DEBUGGING
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include "strategy.h"
#include "../mars_net.h"
static
char *_mars_translate_hostname(const char *name)
{
struct mars_global *global = mars_global;
const char *res = name;
struct mars_dent *test;
char *tmp;
if (unlikely(!global)) {
goto done;
}
tmp = path_make("/mars/ips/ip-%s", name);
if (unlikely(!tmp)) {
goto done;
}
test = mars_find_dent(global, tmp);
if (test && test->new_link) {
MARS_DBG("'%s' => '%s'\n", tmp, test->new_link);
res = test->new_link;
}
kfree(tmp);
done:
return kstrdup(res, GFP_MARS);
}
int mars_send_dent_list(struct socket **sock, struct list_head *anchor)
{
struct list_head *tmp;
struct mars_dent *dent;
int status = 0;
for (tmp = anchor->next; tmp != anchor; tmp = tmp->next) {
dent = container_of(tmp, struct mars_dent, dent_link);
status = mars_send_struct(sock, dent, mars_dent_meta);
if (status < 0)
break;
}
if (status >= 0) { // send EOF
status = mars_send_struct(sock, NULL, mars_dent_meta);
}
return status;
}
EXPORT_SYMBOL_GPL(mars_send_dent_list);
int mars_recv_dent_list(struct socket **sock, struct list_head *anchor)
{
int status;
for (;;) {
struct mars_dent *dent = kzalloc(sizeof(struct mars_dent), GFP_MARS);
if (!dent)
return -ENOMEM;
//MARS_IO("\n");
status = mars_recv_struct(sock, dent, mars_dent_meta);
if (status <= 0) {
kfree(dent);
goto done;
}
list_add_tail(&dent->dent_link, anchor);
INIT_LIST_HEAD(&dent->brick_list);
}
done:
return status;
}
EXPORT_SYMBOL_GPL(mars_recv_dent_list);
////////////////// module init stuff /////////////////////////
static int __init _init_sy_net(void)
{
MARS_INF("init_sy_net()\n");
mars_translate_hostname = _mars_translate_hostname;
return 0;
}
static void __exit _exit_sy_net(void)
{
MARS_INF("exit_sy_net()\n");
}
MODULE_DESCRIPTION("MARS network infrastructure");
MODULE_AUTHOR("Thomas Schoebel-Theuer <tst@1und1.de>");
MODULE_LICENSE("GPL");
module_init(_init_sy_net);
module_exit(_exit_sy_net);