* 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 [sun.com URL with a
- * copy of GPLv2].
+ * 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
#include <libcfs/libcfs.h>
#include "tracefile.h"
-#ifndef get_cpu
-#define get_cpu() smp_processor_id()
-#define put_cpu() do { } while (0)
-#endif
-
-/* three types of trace_data in linux */
-enum {
- TCD_TYPE_PROC = 0,
- TCD_TYPE_SOFTIRQ,
- TCD_TYPE_IRQ,
- TCD_TYPE_MAX
-};
-
/* percents to share the total debug memory for each type */
-static unsigned int pages_factor[TCD_TYPE_MAX] = {
- 80, /* 80% pages for TCD_TYPE_PROC */
- 10, /* 10% pages for TCD_TYPE_SOFTIRQ */
- 10 /* 10% pages for TCD_TYPE_IRQ */
+static unsigned int pages_factor[CFS_TCD_TYPE_MAX] = {
+ 80, /* 80% pages for CFS_TCD_TYPE_PROC */
+ 10, /* 10% pages for CFS_TCD_TYPE_SOFTIRQ */
+ 10 /* 10% pages for CFS_TCD_TYPE_IRQ */
};
-char *trace_console_buffers[NR_CPUS][3];
+char *cfs_trace_console_buffers[NR_CPUS][CFS_TCD_TYPE_MAX];
-struct rw_semaphore tracefile_sem;
+cfs_rw_semaphore_t cfs_tracefile_sem;
-int tracefile_init_arch()
+int cfs_tracefile_init_arch()
{
int i;
int j;
- struct trace_cpu_data *tcd;
+ struct cfs_trace_cpu_data *tcd;
- init_rwsem(&tracefile_sem);
+ cfs_init_rwsem(&cfs_tracefile_sem);
/* initialize trace_data */
- memset(trace_data, 0, sizeof(trace_data));
- for (i = 0; i < TCD_TYPE_MAX; i++) {
- trace_data[i]=kmalloc(sizeof(union trace_data_union)*NR_CPUS,
- GFP_KERNEL);
- if (trace_data[i] == NULL)
+ memset(cfs_trace_data, 0, sizeof(cfs_trace_data));
+ for (i = 0; i < CFS_TCD_TYPE_MAX; i++) {
+ cfs_trace_data[i] =
+ kmalloc(sizeof(union cfs_trace_data_union) * NR_CPUS,
+ GFP_KERNEL);
+ if (cfs_trace_data[i] == NULL)
goto out;
}
/* arch related info initialized */
- tcd_for_each(tcd, i, j) {
+ cfs_tcd_for_each(tcd, i, j) {
+ cfs_spin_lock_init(&tcd->tcd_lock);
tcd->tcd_pages_factor = pages_factor[i];
tcd->tcd_type = i;
tcd->tcd_cpu = j;
for (i = 0; i < num_possible_cpus(); i++)
for (j = 0; j < 3; j++) {
- trace_console_buffers[i][j] =
- kmalloc(TRACE_CONSOLE_BUFFER_SIZE,
- GFP_KERNEL);
+ cfs_trace_console_buffers[i][j] =
+ kmalloc(CFS_TRACE_CONSOLE_BUFFER_SIZE,
+ GFP_KERNEL);
- if (trace_console_buffers[i][j] == NULL)
+ if (cfs_trace_console_buffers[i][j] == NULL)
goto out;
}
return 0;
out:
- tracefile_fini_arch();
- printk(KERN_ERR "lnet: No enough memory\n");
+ cfs_tracefile_fini_arch();
+ printk(KERN_ERR "lnet: Not enough memory\n");
return -ENOMEM;
}
-void tracefile_fini_arch()
+void cfs_tracefile_fini_arch()
{
int i;
int j;
for (i = 0; i < num_possible_cpus(); i++)
for (j = 0; j < 3; j++)
- if (trace_console_buffers[i][j] != NULL) {
- kfree(trace_console_buffers[i][j]);
- trace_console_buffers[i][j] = NULL;
+ if (cfs_trace_console_buffers[i][j] != NULL) {
+ kfree(cfs_trace_console_buffers[i][j]);
+ cfs_trace_console_buffers[i][j] = NULL;
}
- for (i = 0; trace_data[i] != NULL; i++) {
- kfree(trace_data[i]);
- trace_data[i] = NULL;
+ for (i = 0; cfs_trace_data[i] != NULL; i++) {
+ kfree(cfs_trace_data[i]);
+ cfs_trace_data[i] = NULL;
}
-}
-
-void tracefile_read_lock()
-{
- down_read(&tracefile_sem);
-}
-void tracefile_read_unlock()
-{
- up_read(&tracefile_sem);
+ cfs_fini_rwsem(&cfs_tracefile_sem);
}
-void tracefile_write_lock()
+void cfs_tracefile_read_lock()
{
- down_write(&tracefile_sem);
+ cfs_down_read(&cfs_tracefile_sem);
}
-void tracefile_write_unlock()
+void cfs_tracefile_read_unlock()
{
- up_write(&tracefile_sem);
+ cfs_up_read(&cfs_tracefile_sem);
}
-char *
-trace_get_console_buffer(void)
+void cfs_tracefile_write_lock()
{
- int cpu = get_cpu();
- int idx;
-
- if (in_irq()) {
- idx = 0;
- } else if (in_softirq()) {
- idx = 1;
- } else {
- idx = 2;
- }
-
- return trace_console_buffers[cpu][idx];
+ cfs_down_write(&cfs_tracefile_sem);
}
-void
-trace_put_console_buffer(char *buffer)
+void cfs_tracefile_write_unlock()
{
- put_cpu();
+ cfs_up_write(&cfs_tracefile_sem);
}
-struct trace_cpu_data *
-trace_get_tcd(void)
+cfs_trace_buf_type_t cfs_trace_buf_idx_get()
{
- int cpu;
-
- cpu = get_cpu();
if (in_irq())
- return &(*trace_data[TCD_TYPE_IRQ])[cpu].tcd;
+ return CFS_TCD_TYPE_IRQ;
else if (in_softirq())
- return &(*trace_data[TCD_TYPE_SOFTIRQ])[cpu].tcd;
- return &(*trace_data[TCD_TYPE_PROC])[cpu].tcd;
+ return CFS_TCD_TYPE_SOFTIRQ;
+ else
+ return CFS_TCD_TYPE_PROC;
}
-void
-trace_put_tcd (struct trace_cpu_data *tcd)
+int cfs_trace_lock_tcd(struct cfs_trace_cpu_data *tcd)
{
- put_cpu();
-}
-
-int trace_lock_tcd(struct trace_cpu_data *tcd)
-{
- __LASSERT(tcd->tcd_type < TCD_TYPE_MAX);
- if (tcd->tcd_type == TCD_TYPE_IRQ)
- local_irq_disable();
- else if (tcd->tcd_type == TCD_TYPE_SOFTIRQ)
- local_bh_disable();
+ __LASSERT(tcd->tcd_type < CFS_TCD_TYPE_MAX);
+ if (tcd->tcd_type == CFS_TCD_TYPE_IRQ)
+ cfs_spin_lock_irqsave(&tcd->tcd_lock, tcd->tcd_lock_flags);
+ else if (tcd->tcd_type == CFS_TCD_TYPE_SOFTIRQ)
+ cfs_spin_lock_bh(&tcd->tcd_lock);
+ else
+ cfs_spin_lock(&tcd->tcd_lock);
return 1;
}
-void trace_unlock_tcd(struct trace_cpu_data *tcd)
+void cfs_trace_unlock_tcd(struct cfs_trace_cpu_data *tcd)
{
- __LASSERT(tcd->tcd_type < TCD_TYPE_MAX);
- if (tcd->tcd_type == TCD_TYPE_IRQ)
- local_irq_enable();
- else if (tcd->tcd_type == TCD_TYPE_SOFTIRQ)
- local_bh_enable();
+ __LASSERT(tcd->tcd_type < CFS_TCD_TYPE_MAX);
+ if (tcd->tcd_type == CFS_TCD_TYPE_IRQ)
+ cfs_spin_unlock_irqrestore(&tcd->tcd_lock, tcd->tcd_lock_flags);
+ else if (tcd->tcd_type == CFS_TCD_TYPE_SOFTIRQ)
+ cfs_spin_unlock_bh(&tcd->tcd_lock);
+ else
+ cfs_spin_unlock(&tcd->tcd_lock);
}
-int tcd_owns_tage(struct trace_cpu_data *tcd, struct trace_page *tage)
+int cfs_tcd_owns_tage(struct cfs_trace_cpu_data *tcd,
+ struct cfs_trace_page *tage)
{
/*
* XXX nikita: do NOT call portals_debug_msg() (CDEBUG/ENTRY/EXIT)
}
void
-set_ptldebug_header(struct ptldebug_header *header, int subsys, int mask,
- const int line, unsigned long stack)
+cfs_set_ptldebug_header(struct ptldebug_header *header, int subsys, int mask,
+ const int line, unsigned long stack)
{
struct timeval tv;
header->ph_subsys = subsys;
header->ph_mask = mask;
- header->ph_cpu_id = smp_processor_id();
+ header->ph_cpu_id = cfs_smp_processor_id();
+ header->ph_type = cfs_trace_buf_idx_get();
header->ph_sec = (__u32)tv.tv_sec;
header->ph_usec = tv.tv_usec;
header->ph_stack = stack;
return;
}
-void print_to_console(struct ptldebug_header *hdr, int mask, const char *buf,
- int len, const char *file, const char *fn)
+void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
+ const char *buf, int len, const char *file,
+ const char *fn)
{
char *prefix = "Lustre", *ptype = NULL;
if ((mask & D_CONSOLE) != 0) {
printk("%s%s: %.*s", ptype, prefix, len, buf);
} else {
- printk("%s%s: %d:%d:(%s:%d:%s()) %.*s", ptype, prefix, hdr->ph_pid,
- hdr->ph_extern_pid, file, hdr->ph_line_num, fn, len, buf);
+ printk("%s%s: %d:%d:(%s:%d:%s()) %.*s", ptype, prefix,
+ hdr->ph_pid, hdr->ph_extern_pid, file, hdr->ph_line_num,
+ fn, len, buf);
}
return;
}
-int trace_max_debug_mb(void)
-{
- int total_mb = (num_physpages >> (20 - CFS_PAGE_SHIFT));
-
- return MAX(512, (total_mb * 80)/100);
-}
-
-void
-trace_call_on_all_cpus(void (*fn)(void *arg), void *arg)
+int cfs_trace_max_debug_mb(void)
{
- cpumask_t cpus_allowed = current->cpus_allowed;
- /* use cpus_allowed to quiet 2.4 UP kernel warning only */
- cpumask_t m = cpus_allowed;
- int cpu;
-
- /* Run the given routine on every CPU in thread context */
- for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
- if (!cpu_online(cpu))
- continue;
+ int total_mb = (cfs_num_physpages >> (20 - PAGE_SHIFT));
- cpus_clear(m);
- cpu_set(cpu, m);
- set_cpus_allowed(current, m);
-
- fn(arg);
-
- set_cpus_allowed(current, cpus_allowed);
- }
+ return MAX(512, (total_mb * 80)/100);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff