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Commit 87643abf authored by Matthew Tyler's avatar Matthew Tyler Committed by Greg Kroah-Hartman
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staging:lustre:libcfs: Merge linux-proc.c into module.c 

module.c was previously the sole exporter of symbols from linux-proc.c
This patch removes the global symbols by merging the two files
Signed-off-by: default avatarMatthew Tyler <matt.tyler@flashics.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 804db5d0
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Showing with 548 additions and 592 deletions
drivers/staging/lustre/lustre/libcfs/Makefile
View file @ 87643abf
...@@ -3,7 +3,7 @@ obj-$(CONFIG_LUSTRE_FS) += libcfs.o ...@@ -3,7 +3,7 @@ obj-$(CONFIG_LUSTRE_FS) += libcfs.o
libcfs-linux-objs := linux-tracefile.o linux-debug.o libcfs-linux-objs := linux-tracefile.o linux-debug.o
libcfs-linux-objs += linux-prim.o linux-cpu.o libcfs-linux-objs += linux-prim.o linux-cpu.o
libcfs-linux-objs += linux-tcpip.o libcfs-linux-objs += linux-tcpip.o
libcfs-linux-objs += linux-proc.o linux-curproc.o libcfs-linux-objs += linux-curproc.o
libcfs-linux-objs += linux-module.o libcfs-linux-objs += linux-module.o
libcfs-linux-objs += linux-crypto.o libcfs-linux-objs += linux-crypto.o
libcfs-linux-objs += linux-crypto-adler.o libcfs-linux-objs += linux-crypto-adler.o
......
drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c deleted 100644 → 0
View file @ 804db5d0
/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* libcfs/libcfs/linux/linux-proc.c
*
* Author: Zach Brown <zab@zabbo.net>
* Author: Peter J. Braam <braam@clusterfs.com>
* Author: Phil Schwan <phil@clusterfs.com>
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <net/sock.h>
#include <linux/uio.h>
#include <linux/uaccess.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
#include <linux/sysctl.h>
# define DEBUG_SUBSYSTEM S_LNET
#include "../../../include/linux/libcfs/libcfs.h"
#include <asm/div64.h>
#include "../tracefile.h"
static struct ctl_table_header *lnet_table_header = NULL;
extern char lnet_upcall[1024];
/**
* The path of debug log dump upcall script.
*/
extern char lnet_debug_log_upcall[1024];
#define CTL_LNET (0x100)
enum {
PSDEV_DEBUG = 1, /* control debugging */
PSDEV_SUBSYSTEM_DEBUG, /* control debugging */
PSDEV_PRINTK, /* force all messages to console */
PSDEV_CONSOLE_RATELIMIT, /* ratelimit console messages */
PSDEV_CONSOLE_MAX_DELAY_CS, /* maximum delay over which we skip messages */
PSDEV_CONSOLE_MIN_DELAY_CS, /* initial delay over which we skip messages */
PSDEV_CONSOLE_BACKOFF, /* delay increase factor */
PSDEV_DEBUG_PATH, /* crashdump log location */
PSDEV_DEBUG_DUMP_PATH, /* crashdump tracelog location */
PSDEV_CPT_TABLE, /* information about cpu partitions */
PSDEV_LNET_UPCALL, /* User mode upcall script */
PSDEV_LNET_MEMUSED, /* bytes currently PORTAL_ALLOCated */
PSDEV_LNET_CATASTROPHE, /* if we have LBUGged or panic'd */
PSDEV_LNET_PANIC_ON_LBUG, /* flag to panic on LBUG */
PSDEV_LNET_DUMP_KERNEL, /* snapshot kernel debug buffer to file */
PSDEV_LNET_DAEMON_FILE, /* spool kernel debug buffer to file */
PSDEV_LNET_DEBUG_MB, /* size of debug buffer */
PSDEV_LNET_DEBUG_LOG_UPCALL, /* debug log upcall script */
PSDEV_LNET_WATCHDOG_RATELIMIT, /* ratelimit watchdog messages */
PSDEV_LNET_FORCE_LBUG, /* hook to force an LBUG */
PSDEV_LNET_FAIL_LOC, /* control test failures instrumentation */
PSDEV_LNET_FAIL_VAL, /* userdata for fail loc */
};
static int proc_call_handler(void *data, int write, loff_t *ppos,
void __user *buffer, size_t *lenp,
int (*handler)(void *data, int write,
loff_t pos, void __user *buffer, int len))
{
int rc = handler(data, write, *ppos, buffer, *lenp);
if (rc < 0)
return rc;
if (write) {
*ppos += *lenp;
} else {
*lenp = rc;
*ppos += rc;
}
return 0;
}
static int __proc_dobitmasks(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
const int tmpstrlen = 512;
char *tmpstr;
int rc;
unsigned int *mask = data;
int is_subsys = (mask == &libcfs_subsystem_debug) ? 1 : 0;
int is_printk = (mask == &libcfs_printk) ? 1 : 0;
rc = cfs_trace_allocate_string_buffer(&tmpstr, tmpstrlen);
if (rc < 0)
return rc;
if (!write) {
libcfs_debug_mask2str(tmpstr, tmpstrlen, *mask, is_subsys);
rc = strlen(tmpstr);
if (pos >= rc) {
rc = 0;
} else {
rc = cfs_trace_copyout_string(buffer, nob,
tmpstr + pos, "\n");
}
} else {
rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
if (rc < 0) {
cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
return rc;
}
rc = libcfs_debug_str2mask(mask, tmpstr, is_subsys);
/* Always print LBUG/LASSERT to console, so keep this mask */
if (is_printk)
*mask |= D_EMERG;
}
cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
return rc;
}
static int proc_dobitmasks(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_dobitmasks);
}
static int min_watchdog_ratelimit; /* disable ratelimiting */
static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
static int __proc_dump_kernel(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
if (!write)
return 0;
return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
}
static int proc_dump_kernel(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_dump_kernel);
}
static int __proc_daemon_file(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
if (!write) {
int len = strlen(cfs_tracefile);
if (pos >= len)
return 0;
return cfs_trace_copyout_string(buffer, nob,
cfs_tracefile + pos, "\n");
}
return cfs_trace_daemon_command_usrstr(buffer, nob);
}
static int proc_daemon_file(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_daemon_file);
}
static int __proc_debug_mb(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
if (!write) {
char tmpstr[32];
int len = snprintf(tmpstr, sizeof(tmpstr), "%d",
cfs_trace_get_debug_mb());
if (pos >= len)
return 0;
return cfs_trace_copyout_string(buffer, nob, tmpstr + pos,
"\n");
}
return cfs_trace_set_debug_mb_usrstr(buffer, nob);
}
static int proc_debug_mb(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_debug_mb);
}
static int proc_console_max_delay_cs(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos)
{
int rc, max_delay_cs;
struct ctl_table dummy = *table;
long d;
dummy.data = &max_delay_cs;
dummy.proc_handler = &proc_dointvec;
if (!write) { /* read */
max_delay_cs = cfs_duration_sec(libcfs_console_max_delay * 100);
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
return rc;
}
/* write */
max_delay_cs = 0;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
if (rc < 0)
return rc;
if (max_delay_cs <= 0)
return -EINVAL;
d = cfs_time_seconds(max_delay_cs) / 100;
if (d == 0 || d < libcfs_console_min_delay)
return -EINVAL;
libcfs_console_max_delay = d;
return rc;
}
static int proc_console_min_delay_cs(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos)
{
int rc, min_delay_cs;
struct ctl_table dummy = *table;
long d;
dummy.data = &min_delay_cs;
dummy.proc_handler = &proc_dointvec;
if (!write) { /* read */
min_delay_cs = cfs_duration_sec(libcfs_console_min_delay * 100);
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
return rc;
}
/* write */
min_delay_cs = 0;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
if (rc < 0)
return rc;
if (min_delay_cs <= 0)
return -EINVAL;
d = cfs_time_seconds(min_delay_cs) / 100;
if (d == 0 || d > libcfs_console_max_delay)
return -EINVAL;
libcfs_console_min_delay = d;
return rc;
}
static int proc_console_backoff(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int rc, backoff;
struct ctl_table dummy = *table;
dummy.data = &backoff;
dummy.proc_handler = &proc_dointvec;
if (!write) { /* read */
backoff= libcfs_console_backoff;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
return rc;
}
/* write */
backoff = 0;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
if (rc < 0)
return rc;
if (backoff <= 0)
return -EINVAL;
libcfs_console_backoff = backoff;
return rc;
}
static int libcfs_force_lbug(struct ctl_table *table, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
if (write)
LBUG();
return 0;
}
static int proc_fail_loc(struct ctl_table *table, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
int rc;
long old_fail_loc = cfs_fail_loc;
rc = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
if (old_fail_loc != cfs_fail_loc)
wake_up(&cfs_race_waitq);
return rc;
}
static int __proc_cpt_table(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
char *buf = NULL;
int len = 4096;
int rc = 0;
if (write)
return -EPERM;
LASSERT(cfs_cpt_table != NULL);
while (1) {
LIBCFS_ALLOC(buf, len);
if (buf == NULL)
return -ENOMEM;
rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
if (rc >= 0)
break;
if (rc == -EFBIG) {
LIBCFS_FREE(buf, len);
len <<= 1;
continue;
}
goto out;
}
if (pos >= rc) {
rc = 0;
goto out;
}
rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
out:
if (buf != NULL)
LIBCFS_FREE(buf, len);
return rc;
}
static int proc_cpt_table(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_cpt_table);
}
static struct ctl_table lnet_table[] = {
/*
* NB No .strategy entries have been provided since sysctl(8) prefers
* to go via /proc for portability.
*/
{
.procname = "debug",
.data = &libcfs_debug,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dobitmasks,
},
{
.procname = "subsystem_debug",
.data = &libcfs_subsystem_debug,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dobitmasks,
},
{
.procname = "printk",
.data = &libcfs_printk,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dobitmasks,
},
{
.procname = "console_ratelimit",
.data = &libcfs_console_ratelimit,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.procname = "console_max_delay_centisecs",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_max_delay_cs
},
{
.procname = "console_min_delay_centisecs",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_min_delay_cs
},
{
.procname = "console_backoff",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_backoff
},
{
.procname = "debug_path",
.data = libcfs_debug_file_path_arr,
.maxlen = sizeof(libcfs_debug_file_path_arr),
.mode = 0644,
.proc_handler = &proc_dostring,
},
{
.procname = "cpu_partition_table",
.maxlen = 128,
.mode = 0444,
.proc_handler = &proc_cpt_table,
},
{
.procname = "upcall",
.data = lnet_upcall,
.maxlen = sizeof(lnet_upcall),
.mode = 0644,
.proc_handler = &proc_dostring,
},
{
.procname = "debug_log_upcall",
.data = lnet_debug_log_upcall,
.maxlen = sizeof(lnet_debug_log_upcall),
.mode = 0644,
.proc_handler = &proc_dostring,
},
{
.procname = "lnet_memused",
.data = (int *)&libcfs_kmemory.counter,
.maxlen = sizeof(int),
.mode = 0444,
.proc_handler = &proc_dointvec,
},
{
.procname = "catastrophe",
.data = &libcfs_catastrophe,
.maxlen = sizeof(int),
.mode = 0444,
.proc_handler = &proc_dointvec,
},
{
.procname = "panic_on_lbug",
.data = &libcfs_panic_on_lbug,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.procname = "dump_kernel",
.maxlen = 256,
.mode = 0200,
.proc_handler = &proc_dump_kernel,
},
{
.procname = "daemon_file",
.mode = 0644,
.maxlen = 256,
.proc_handler = &proc_daemon_file,
},
{
.procname = "debug_mb",
.mode = 0644,
.proc_handler = &proc_debug_mb,
},
{
.procname = "watchdog_ratelimit",
.data = &libcfs_watchdog_ratelimit,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.extra1 = &min_watchdog_ratelimit,
.extra2 = &max_watchdog_ratelimit,
},
{
.procname = "force_lbug",
.data = NULL,
.maxlen = 0,
.mode = 0200,
.proc_handler = &libcfs_force_lbug
},
{
.procname = "fail_loc",
.data = &cfs_fail_loc,
.maxlen = sizeof(cfs_fail_loc),
.mode = 0644,
.proc_handler = &proc_fail_loc
},
{
.procname = "fail_val",
.data = &cfs_fail_val,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
}
};
static struct ctl_table top_table[] = {
{
.procname = "lnet",
.mode = 0555,
.data = NULL,
.maxlen = 0,
.child = lnet_table,
},
{
}
};
int insert_proc(void)
{
if (lnet_table_header == NULL)
lnet_table_header = register_sysctl_table(top_table);
return 0;
}
void remove_proc(void)
{
if (lnet_table_header != NULL)
unregister_sysctl_table(lnet_table_header);
lnet_table_header = NULL;
}
drivers/staging/lustre/lustre/libcfs/module.c
View file @ 87643abf
...@@ -33,15 +33,82 @@ ...@@ -33,15 +33,82 @@
* This file is part of Lustre, http://www.lustre.org/ * This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc. * Lustre is a trademark of Sun Microsystems, Inc.
*/ */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <net/sock.h>
#include <linux/uio.h>
#define DEBUG_SUBSYSTEM S_LNET #include <linux/uaccess.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
#include <linux/sysctl.h>
# define DEBUG_SUBSYSTEM S_LNET
#include "../../include/linux/libcfs/libcfs.h" #include "../../include/linux/libcfs/libcfs.h"
#include <asm/div64.h>
#include "../../include/linux/libcfs/libcfs_crypto.h" #include "../../include/linux/libcfs/libcfs_crypto.h"
#include "../../include/linux/lnet/lib-lnet.h" #include "../../include/linux/lnet/lib-lnet.h"
#include "../../include/linux/lnet/lnet.h" #include "../../include/linux/lnet/lnet.h"
#include "tracefile.h" #include "tracefile.h"
MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
MODULE_DESCRIPTION("Portals v3.1");
MODULE_LICENSE("GPL");
extern struct miscdevice libcfs_dev;
extern struct rw_semaphore cfs_tracefile_sem;
extern struct mutex cfs_trace_thread_mutex;
extern struct cfs_wi_sched *cfs_sched_rehash;
extern void libcfs_init_nidstrings(void);
static int insert_proc(void);
static void remove_proc(void);
static struct ctl_table_header *lnet_table_header;
extern char lnet_upcall[1024];
/**
* The path of debug log dump upcall script.
*/
extern char lnet_debug_log_upcall[1024];
#define CTL_LNET (0x100)
enum {
PSDEV_DEBUG = 1, /* control debugging */
PSDEV_SUBSYSTEM_DEBUG, /* control debugging */
PSDEV_PRINTK, /* force all messages to console */
PSDEV_CONSOLE_RATELIMIT, /* ratelimit console messages */
PSDEV_CONSOLE_MAX_DELAY_CS, /* maximum delay over which we skip messages */
PSDEV_CONSOLE_MIN_DELAY_CS, /* initial delay over which we skip messages */
PSDEV_CONSOLE_BACKOFF, /* delay increase factor */
PSDEV_DEBUG_PATH, /* crashdump log location */
PSDEV_DEBUG_DUMP_PATH, /* crashdump tracelog location */
PSDEV_CPT_TABLE, /* information about cpu partitions */
PSDEV_LNET_UPCALL, /* User mode upcall script */
PSDEV_LNET_MEMUSED, /* bytes currently PORTAL_ALLOCated */
PSDEV_LNET_CATASTROPHE, /* if we have LBUGged or panic'd */
PSDEV_LNET_PANIC_ON_LBUG, /* flag to panic on LBUG */
PSDEV_LNET_DUMP_KERNEL, /* snapshot kernel debug buffer to file */
PSDEV_LNET_DAEMON_FILE, /* spool kernel debug buffer to file */
PSDEV_LNET_DEBUG_MB, /* size of debug buffer */
PSDEV_LNET_DEBUG_LOG_UPCALL, /* debug log upcall script */
PSDEV_LNET_WATCHDOG_RATELIMIT, /* ratelimit watchdog messages */
PSDEV_LNET_FORCE_LBUG, /* hook to force an LBUG */
PSDEV_LNET_FAIL_LOC, /* control test failures instrumentation */
PSDEV_LNET_FAIL_VAL, /* userdata for fail loc */
};
static void kportal_memhog_free (struct libcfs_device_userstate *ldu) static void kportal_memhog_free (struct libcfs_device_userstate *ldu)
{ {
struct page **level0p = &ldu->ldu_memhog_root_page; struct page **level0p = &ldu->ldu_memhog_root_page;
...@@ -320,19 +387,6 @@ struct cfs_psdev_ops libcfs_psdev_ops = { ...@@ -320,19 +387,6 @@ struct cfs_psdev_ops libcfs_psdev_ops = {
libcfs_ioctl libcfs_ioctl
}; };
extern int insert_proc(void);
extern void remove_proc(void);
MODULE_AUTHOR("Peter J. Braam <braam@clusterfs.com>");
MODULE_DESCRIPTION("Portals v3.1");
MODULE_LICENSE("GPL");
extern struct miscdevice libcfs_dev;
extern struct rw_semaphore cfs_tracefile_sem;
extern struct mutex cfs_trace_thread_mutex;
extern struct cfs_wi_sched *cfs_sched_rehash;
extern void libcfs_init_nidstrings(void);
static int init_libcfs_module(void) static int init_libcfs_module(void)
{ {
int rc; int rc;
...@@ -438,6 +492,485 @@ static void exit_libcfs_module(void) ...@@ -438,6 +492,485 @@ static void exit_libcfs_module(void)
libcfs_arch_cleanup(); libcfs_arch_cleanup();
} }
static int proc_call_handler(void *data, int write, loff_t *ppos,
void __user *buffer, size_t *lenp,
int (*handler)(void *data, int write,
loff_t pos, void __user *buffer, int len))
{
int rc = handler(data, write, *ppos, buffer, *lenp);
if (rc < 0)
return rc;
if (write) {
*ppos += *lenp;
} else {
*lenp = rc;
*ppos += rc;
}
return 0;
}
static int __proc_dobitmasks(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
const int tmpstrlen = 512;
char *tmpstr;
int rc;
unsigned int *mask = data;
int is_subsys = (mask == &libcfs_subsystem_debug) ? 1 : 0;
int is_printk = (mask == &libcfs_printk) ? 1 : 0;
rc = cfs_trace_allocate_string_buffer(&tmpstr, tmpstrlen);
if (rc < 0)
return rc;
if (!write) {
libcfs_debug_mask2str(tmpstr, tmpstrlen, *mask, is_subsys);
rc = strlen(tmpstr);
if (pos >= rc) {
rc = 0;
} else {
rc = cfs_trace_copyout_string(buffer, nob,
tmpstr + pos, "\n");
}
} else {
rc = cfs_trace_copyin_string(tmpstr, tmpstrlen, buffer, nob);
if (rc < 0) {
cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
return rc;
}
rc = libcfs_debug_str2mask(mask, tmpstr, is_subsys);
/* Always print LBUG/LASSERT to console, so keep this mask */
if (is_printk)
*mask |= D_EMERG;
}
cfs_trace_free_string_buffer(tmpstr, tmpstrlen);
return rc;
}
static int proc_dobitmasks(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_dobitmasks);
}
static int min_watchdog_ratelimit; /* disable ratelimiting */
static int max_watchdog_ratelimit = (24*60*60); /* limit to once per day */
static int __proc_dump_kernel(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
if (!write)
return 0;
return cfs_trace_dump_debug_buffer_usrstr(buffer, nob);
}
static int proc_dump_kernel(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_dump_kernel);
}
static int __proc_daemon_file(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
if (!write) {
int len = strlen(cfs_tracefile);
if (pos >= len)
return 0;
return cfs_trace_copyout_string(buffer, nob,
cfs_tracefile + pos, "\n");
}
return cfs_trace_daemon_command_usrstr(buffer, nob);
}
static int proc_daemon_file(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_daemon_file);
}
static int __proc_debug_mb(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
if (!write) {
char tmpstr[32];
int len = snprintf(tmpstr, sizeof(tmpstr), "%d",
cfs_trace_get_debug_mb());
if (pos >= len)
return 0;
return cfs_trace_copyout_string(buffer, nob, tmpstr + pos,
"\n");
}
return cfs_trace_set_debug_mb_usrstr(buffer, nob);
}
static int proc_debug_mb(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_debug_mb);
}
static int proc_console_max_delay_cs(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos)
{
int rc, max_delay_cs;
struct ctl_table dummy = *table;
long d;
dummy.data = &max_delay_cs;
dummy.proc_handler = &proc_dointvec;
if (!write) { /* read */
max_delay_cs = cfs_duration_sec(libcfs_console_max_delay * 100);
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
return rc;
}
/* write */
max_delay_cs = 0;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
if (rc < 0)
return rc;
if (max_delay_cs <= 0)
return -EINVAL;
d = cfs_time_seconds(max_delay_cs) / 100;
if (d == 0 || d < libcfs_console_min_delay)
return -EINVAL;
libcfs_console_max_delay = d;
return rc;
}
static int proc_console_min_delay_cs(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos)
{
int rc, min_delay_cs;
struct ctl_table dummy = *table;
long d;
dummy.data = &min_delay_cs;
dummy.proc_handler = &proc_dointvec;
if (!write) { /* read */
min_delay_cs = cfs_duration_sec(libcfs_console_min_delay * 100);
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
return rc;
}
/* write */
min_delay_cs = 0;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
if (rc < 0)
return rc;
if (min_delay_cs <= 0)
return -EINVAL;
d = cfs_time_seconds(min_delay_cs) / 100;
if (d == 0 || d > libcfs_console_max_delay)
return -EINVAL;
libcfs_console_min_delay = d;
return rc;
}
static int proc_console_backoff(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int rc, backoff;
struct ctl_table dummy = *table;
dummy.data = &backoff;
dummy.proc_handler = &proc_dointvec;
if (!write) { /* read */
backoff = libcfs_console_backoff;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
return rc;
}
/* write */
backoff = 0;
rc = proc_dointvec(&dummy, write, buffer, lenp, ppos);
if (rc < 0)
return rc;
if (backoff <= 0)
return -EINVAL;
libcfs_console_backoff = backoff;
return rc;
}
static int libcfs_force_lbug(struct ctl_table *table, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
if (write)
LBUG();
return 0;
}
static int proc_fail_loc(struct ctl_table *table, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
int rc;
long old_fail_loc = cfs_fail_loc;
rc = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
if (old_fail_loc != cfs_fail_loc)
wake_up(&cfs_race_waitq);
return rc;
}
static int __proc_cpt_table(void *data, int write,
loff_t pos, void __user *buffer, int nob)
{
char *buf = NULL;
int len = 4096;
int rc = 0;
if (write)
return -EPERM;
LASSERT(cfs_cpt_table != NULL);
while (1) {
LIBCFS_ALLOC(buf, len);
if (buf == NULL)
return -ENOMEM;
rc = cfs_cpt_table_print(cfs_cpt_table, buf, len);
if (rc >= 0)
break;
if (rc == -EFBIG) {
LIBCFS_FREE(buf, len);
len <<= 1;
continue;
}
goto out;
}
if (pos >= rc) {
rc = 0;
goto out;
}
rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL);
out:
if (buf != NULL)
LIBCFS_FREE(buf, len);
return rc;
}
static int proc_cpt_table(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
return proc_call_handler(table->data, write, ppos, buffer, lenp,
__proc_cpt_table);
}
static struct ctl_table lnet_table[] = {
/*
* NB No .strategy entries have been provided since sysctl(8) prefers
* to go via /proc for portability.
*/
{
.procname = "debug",
.data = &libcfs_debug,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dobitmasks,
},
{
.procname = "subsystem_debug",
.data = &libcfs_subsystem_debug,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dobitmasks,
},
{
.procname = "printk",
.data = &libcfs_printk,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dobitmasks,
},
{
.procname = "console_ratelimit",
.data = &libcfs_console_ratelimit,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.procname = "console_max_delay_centisecs",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_max_delay_cs
},
{
.procname = "console_min_delay_centisecs",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_min_delay_cs
},
{
.procname = "console_backoff",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_console_backoff
},
{
.procname = "debug_path",
.data = libcfs_debug_file_path_arr,
.maxlen = sizeof(libcfs_debug_file_path_arr),
.mode = 0644,
.proc_handler = &proc_dostring,
},
{
.procname = "cpu_partition_table",
.maxlen = 128,
.mode = 0444,
.proc_handler = &proc_cpt_table,
},
{
.procname = "upcall",
.data = lnet_upcall,
.maxlen = sizeof(lnet_upcall),
.mode = 0644,
.proc_handler = &proc_dostring,
},
{
.procname = "debug_log_upcall",
.data = lnet_debug_log_upcall,
.maxlen = sizeof(lnet_debug_log_upcall),
.mode = 0644,
.proc_handler = &proc_dostring,
},
{
.procname = "lnet_memused",
.data = (int *)&libcfs_kmemory.counter,
.maxlen = sizeof(int),
.mode = 0444,
.proc_handler = &proc_dointvec,
},
{
.procname = "catastrophe",
.data = &libcfs_catastrophe,
.maxlen = sizeof(int),
.mode = 0444,
.proc_handler = &proc_dointvec,
},
{
.procname = "panic_on_lbug",
.data = &libcfs_panic_on_lbug,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.procname = "dump_kernel",
.maxlen = 256,
.mode = 0200,
.proc_handler = &proc_dump_kernel,
},
{
.procname = "daemon_file",
.mode = 0644,
.maxlen = 256,
.proc_handler = &proc_daemon_file,
},
{
.procname = "debug_mb",
.mode = 0644,
.proc_handler = &proc_debug_mb,
},
{
.procname = "watchdog_ratelimit",
.data = &libcfs_watchdog_ratelimit,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.extra1 = &min_watchdog_ratelimit,
.extra2 = &max_watchdog_ratelimit,
},
{
.procname = "force_lbug",
.data = NULL,
.maxlen = 0,
.mode = 0200,
.proc_handler = &libcfs_force_lbug
},
{
.procname = "fail_loc",
.data = &cfs_fail_loc,
.maxlen = sizeof(cfs_fail_loc),
.mode = 0644,
.proc_handler = &proc_fail_loc
},
{
.procname = "fail_val",
.data = &cfs_fail_val,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
}
};
static struct ctl_table top_table[] = {
{
.procname = "lnet",
.mode = 0555,
.data = NULL,
.maxlen = 0,
.child = lnet_table,
},
{
}
};
static int insert_proc(void)
{
if (lnet_table_header == NULL)
lnet_table_header = register_sysctl_table(top_table);
return 0;
}
static void remove_proc(void)
{
if (lnet_table_header != NULL)
unregister_sysctl_table(lnet_table_header);
lnet_table_header = NULL;
}
MODULE_VERSION("1.0.0"); MODULE_VERSION("1.0.0");
module_init(init_libcfs_module); module_init(init_libcfs_module);
module_exit(exit_libcfs_module); module_exit(exit_libcfs_module);
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