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: Matthew Tyler <matt.tyler@xxxxxxxxxxxx> --- drivers/staging/lustre/lustre/libcfs/Makefile | 2 +- .../lustre/lustre/libcfs/linux/linux-proc.c | 577 --------------------- drivers/staging/lustre/lustre/libcfs/module.c | 561 +++++++++++++++++++- 3 files changed, 548 insertions(+), 592 deletions(-) delete mode 100644 drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c diff --git a/drivers/staging/lustre/lustre/libcfs/Makefile b/drivers/staging/lustre/lustre/libcfs/Makefile index fcecbd2..2996a48 100644 --- a/drivers/staging/lustre/lustre/libcfs/Makefile +++ b/drivers/staging/lustre/lustre/libcfs/Makefile @@ -3,7 +3,7 @@ obj-$(CONFIG_LUSTRE_FS) += libcfs.o libcfs-linux-objs := linux-tracefile.o linux-debug.o libcfs-linux-objs += linux-prim.o linux-cpu.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-crypto.o libcfs-linux-objs += linux-crypto-adler.o diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c deleted file mode 100644 index 3100cb1..0000000 --- a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c +++ /dev/null @@ -1,577 +0,0 @@ -/* - * 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@xxxxxxxxx> - * Author: Peter J. Braam <braam@xxxxxxxxxxxxx> - * Author: Phil Schwan <phil@xxxxxxxxxxxxx> - */ - -#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; -} diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c index e35f598..f0ee76a 100644 --- a/drivers/staging/lustre/lustre/libcfs/module.c +++ b/drivers/staging/lustre/lustre/libcfs/module.c @@ -33,15 +33,82 @@ * This file is part of Lustre, http://www.lustre.org/ * 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 <asm/div64.h> + #include "../../include/linux/libcfs/libcfs_crypto.h" #include "../../include/linux/lnet/lib-lnet.h" #include "../../include/linux/lnet/lnet.h" #include "tracefile.h" +MODULE_AUTHOR("Peter J. Braam <braam@xxxxxxxxxxxxx>"); +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) { struct page **level0p = &ldu->ldu_memhog_root_page; @@ -320,19 +387,6 @@ struct cfs_psdev_ops libcfs_psdev_ops = { libcfs_ioctl }; -extern int insert_proc(void); -extern void remove_proc(void); -MODULE_AUTHOR("Peter J. Braam <braam@xxxxxxxxxxxxx>"); -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) { int rc; @@ -438,6 +492,485 @@ static void exit_libcfs_module(void) 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_init(init_libcfs_module); module_exit(exit_libcfs_module); -- 2.3.0
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