*
* 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <libcfs/libcfs.h>
-#if defined(__linux__)
-#include "linux/linux-tracefile.h"
-#elif defined(__WINNT__)
-#include "winnt/winnt-tracefile.h"
-#else
-#error Unsupported operating system.
-#endif
-
-/* trace file lock routines */
+enum cfs_trace_buf_type {
+ CFS_TCD_TYPE_PROC = 0,
+ CFS_TCD_TYPE_SOFTIRQ,
+ CFS_TCD_TYPE_IRQ,
+ CFS_TCD_TYPE_MAX
+};
#define TRACEFILE_NAME_SIZE 1024
extern char cfs_tracefile[TRACEFILE_NAME_SIZE];
extern long long cfs_tracefile_size;
+/**
+ * The path of debug log dump upcall script.
+ */
+extern char lnet_debug_log_upcall[1024];
+
extern void libcfs_run_debug_log_upcall(char *file);
int cfs_tracefile_init_arch(void);
void cfs_tracefile_fini_arch(void);
-void cfs_tracefile_read_lock(void);
-void cfs_tracefile_read_unlock(void);
-void cfs_tracefile_write_lock(void);
-void cfs_tracefile_write_unlock(void);
-
int cfs_tracefile_dump_all_pages(char *filename);
void cfs_trace_debug_print(void);
void cfs_trace_flush_pages(void);
int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob,
- const char *usr_buffer, int usr_buffer_nob);
-int cfs_trace_copyout_string(char *usr_buffer, int usr_buffer_nob,
+ const char __user *usr_buffer, int usr_buffer_nob);
+int cfs_trace_copyout_string(char __user *usr_buffer, int usr_buffer_nob,
const char *knl_str, char *append);
int cfs_trace_allocate_string_buffer(char **str, int nob);
-void cfs_trace_free_string_buffer(char *str, int nob);
-int cfs_trace_dump_debug_buffer_usrstr(void *usr_str, int usr_str_nob);
+int cfs_trace_dump_debug_buffer_usrstr(void __user *usr_str, int usr_str_nob);
int cfs_trace_daemon_command(char *str);
-int cfs_trace_daemon_command_usrstr(void *usr_str, int usr_str_nob);
+int cfs_trace_daemon_command_usrstr(void __user *usr_str, int usr_str_nob);
int cfs_trace_set_debug_mb(int mb);
-int cfs_trace_set_debug_mb_usrstr(void *usr_str, int usr_str_nob);
int cfs_trace_get_debug_mb(void);
extern void libcfs_debug_dumplog_internal(void *arg);
-extern void libcfs_register_panic_notifier(void);
-extern void libcfs_unregister_panic_notifier(void);
extern int libcfs_panic_in_progress;
-extern int cfs_trace_max_debug_mb(void);
-#define TCD_MAX_PAGES (5 << (20 - PAGE_CACHE_SHIFT))
+#define TCD_MAX_PAGES (5 << (20 - PAGE_SHIFT))
#define TCD_STOCK_PAGES (TCD_MAX_PAGES)
#define CFS_TRACEFILE_SIZE (500 << 20)
/*
* Private declare for tracefile
*/
-#define TCD_MAX_PAGES (5 << (20 - PAGE_CACHE_SHIFT))
+#define TCD_MAX_PAGES (5 << (20 - PAGE_SHIFT))
#define TCD_STOCK_PAGES (TCD_MAX_PAGES)
#define CFS_TRACEFILE_SIZE (500 << 20)
* Even though this structure is meant to be per-CPU, locking
* is needed because in some places the data may be accessed
* from other CPUs. This lock is directly used in trace_get_tcd
- * and trace_put_tcd, which are called in libcfs_debug_vmsg2 and
+ * and trace_put_tcd, which are called in libcfs_debug_msg and
* tcd_for_each_type_lock
*/
spinlock_t tcd_lock;
/*
* pages with trace records not yet processed by tracefiled.
*/
- cfs_list_t tcd_pages;
+ struct list_head tcd_pages;
/* number of pages on ->tcd_pages */
- unsigned long tcd_cur_pages;
+ unsigned long tcd_cur_pages;
/*
* pages with trace records already processed by
* (put_pages_on_daemon_list()). LRU pages from this list are
* discarded when list grows too large.
*/
- cfs_list_t tcd_daemon_pages;
+ struct list_head tcd_daemon_pages;
/* number of pages on ->tcd_daemon_pages */
- unsigned long tcd_cur_daemon_pages;
+ unsigned long tcd_cur_daemon_pages;
/*
* Maximal number of pages allowed on ->tcd_pages and
* TCD_STOCK_PAGES pagesful are consumed by trace records all
* emitted in non-blocking contexts. Which is quite unlikely.
*/
- cfs_list_t tcd_stock_pages;
+ struct list_head tcd_stock_pages;
/* number of pages on ->tcd_stock_pages */
unsigned long tcd_cur_stock_pages;
j < num_possible_cpus(); \
j++, (tcd) = &(*cfs_trace_data[i])[j].tcd)
-#define cfs_tcd_for_each_type_lock(tcd, i, cpu) \
- for (i = 0; cfs_trace_data[i] && \
- (tcd = &(*cfs_trace_data[i])[cpu].tcd) && \
- cfs_trace_lock_tcd(tcd, 1); cfs_trace_unlock_tcd(tcd, 1), i++)
-
/* XXX nikita: this declaration is internal to tracefile.c and should probably
* be moved there */
struct page_collection {
- cfs_list_t pc_pages;
- /*
- * spin-lock protecting ->pc_pages. It is taken by smp_call_function()
- * call-back functions. XXX nikita: Which is horrible: all processors
- * receive NMI at the same time only to be serialized by this
- * lock. Probably ->pc_pages should be replaced with an array of
- * NR_CPUS elements accessed locklessly.
- */
- spinlock_t pc_lock;
+ struct list_head pc_pages;
/*
* if this flag is set, collect_pages() will spill both
* ->tcd_daemon_pages and ->tcd_pages to the ->pc_pages. Otherwise,
* only ->tcd_pages are spilled.
*/
- int pc_want_daemon_pages;
+ int pc_want_daemon_pages;
};
/* XXX nikita: this declaration is internal to tracefile.c and should probably
struct tracefiled_ctl {
struct completion tctl_start;
struct completion tctl_stop;
- cfs_waitq_t tctl_waitq;
+ wait_queue_head_t tctl_waitq;
pid_t tctl_pid;
- cfs_atomic_t tctl_shutdown;
+ atomic_t tctl_shutdown;
};
/*
/*
* page itself
*/
- struct page *page;
+ struct page *page;
/*
* linkage into one of the lists in trace_data_union or
* page_collection
*/
- cfs_list_t linkage;
+ struct list_head linkage;
/*
* number of bytes used within this page
*/
- unsigned int used;
+ unsigned int used;
/*
* cpu that owns this page
*/
- unsigned short cpu;
+ unsigned short cpu;
/*
* type(context) of this page
*/
- unsigned short type;
+ unsigned short type;
};
-extern void cfs_set_ptldebug_header(struct ptldebug_header *header,
- struct libcfs_debug_msg_data *m,
- unsigned long stack);
-extern void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
- const char *buf, int len, const char *file,
- const char *fn);
-
-extern int cfs_trace_lock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
-extern void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd, int walking);
-
-/**
- * trace_buf_type_t, trace_buf_idx_get() and trace_console_buffers[][]
- * are not public libcfs API; they should be defined in
- * platform-specific tracefile include files
- * (see, for example, linux-tracefile.h).
- */
-
extern char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX];
-extern cfs_trace_buf_type_t cfs_trace_buf_idx_get(void);
+extern enum cfs_trace_buf_type cfs_trace_buf_idx_get(void);
static inline char *cfs_trace_get_console_buffer(void)
{
return cfs_trace_console_buffers[i][j];
}
-static inline void
-cfs_trace_put_console_buffer(char *buffer)
-{
- put_cpu();
-}
-
-static inline struct cfs_trace_cpu_data *cfs_trace_get_tcd(void)
-{
- struct cfs_trace_cpu_data *tcd =
- &(*cfs_trace_data[cfs_trace_buf_idx_get()])[get_cpu()].tcd;
-
- cfs_trace_lock_tcd(tcd, 0);
-
- return tcd;
-}
-
-static inline void cfs_trace_put_tcd(struct cfs_trace_cpu_data *tcd)
-{
- cfs_trace_unlock_tcd(tcd, 0);
- put_cpu();
-}
-
-int cfs_trace_refill_stock(struct cfs_trace_cpu_data *tcd, int gfp,
- cfs_list_t *stock);
-
-
int cfs_tcd_owns_tage(struct cfs_trace_cpu_data *tcd,
struct cfs_trace_page *tage);
struct libcfs_debug_msg_data *m);
/* ASSERTION that is safe to use within the debug system */
-#define __LASSERT(cond) \
-do { \
- if (unlikely(!(cond))) { \
- LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_EMERG, NULL); \
- cfs_trace_assertion_failed("ASSERTION("#cond") failed", \
- &msgdata); \
- } \
+#define __LASSERT(cond) \
+do { \
+ if (unlikely(!(cond))) { \
+ LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_EMERG, NULL); \
+ cfs_trace_assertion_failed("ASSERTION("#cond") failed", \
+ &msgdata); \
+ } \
} while (0)
-#define __LASSERT_TAGE_INVARIANT(tage) \
-do { \
- __LASSERT(tage != NULL); \
- __LASSERT(tage->page != NULL); \
- __LASSERT(tage->used <= PAGE_CACHE_SIZE); \
- __LASSERT(page_count(tage->page) > 0); \
+#define __LASSERT_TAGE_INVARIANT(tage) \
+do { \
+ __LASSERT(tage != NULL); \
+ __LASSERT(tage->page != NULL); \
+ __LASSERT(tage->used <= PAGE_SIZE); \
+ __LASSERT(page_count(tage->page) > 0); \
} while (0)
#endif /* LUSTRE_TRACEFILE_PRIVATE */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff