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[SCSI] zfcp: Remove duplicated code for debug timestamps 

The timestamp calculation used for s390dbf output is the same in a
private zfcp function and in debug.c. Replace both with a common
inline function.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
hifive-unleashed-5.1
Christof Schmitt 2009-08-18 15:43:31 +02:00 committed by James Bottomley
parent 0fac3f477b
commit b592e89ac9
4 changed files with 13 additions and 23 deletions
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8
arch/s390/include/asm/timex.h
View File

@ -88,6 +88,14 @@ int get_sync_clock(unsigned long long *clock);
void init_cpu_timer(void);
unsigned long long monotonic_clock(void);
void tod_to_timeval(__u64, struct timespec *);
static inline
void stck_to_timespec(unsigned long long stck, struct timespec *ts)
{
tod_to_timeval(stck - TOD_UNIX_EPOCH, ts);
}
extern u64 sched_clock_base_cc;
#endif

8
arch/s390/kernel/debug.c
View File

@ -63,8 +63,6 @@ typedef struct
} debug_sprintf_entry_t;
extern void tod_to_timeval(uint64_t todval, struct timespec *xtime);
/* internal function prototyes */
static int debug_init(void);
@ -1450,17 +1448,13 @@ debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,
int area, debug_entry_t * entry, char *out_buf)
{
struct timespec time_spec;
unsigned long long time;
char *except_str;
unsigned long caller;
int rc = 0;
unsigned int level;
level = entry->id.fields.level;
time = entry->id.stck;
/* adjust todclock to 1970 */
time -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
tod_to_timeval(time, &time_spec);
stck_to_timespec(entry->id.stck, &time_spec);
if (entry->id.fields.exception)
except_str = "*";

1
arch/s390/kernel/time.c
View File

@ -90,6 +90,7 @@ void tod_to_timeval(__u64 todval, struct timespec *xtime)
todval -= (sec * 1000000) << 12;
xtime->tv_nsec = ((todval * 1000) >> 12);
}
EXPORT_SYMBOL(tod_to_timeval);
void clock_comparator_work(void)
{

19
drivers/s390/scsi/zfcp_dbf.c
View File

@ -38,19 +38,6 @@ static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
}
}
/* FIXME: this duplicate this code in s390 debug feature */
static void zfcp_dbf_timestamp(unsigned long long stck, struct timespec *time)
{
unsigned long long sec;
stck -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
sec = stck >> 12;
do_div(sec, 1000000);
time->tv_sec = sec;
stck -= (sec * 1000000) << 12;
time->tv_nsec = ((stck * 1000) >> 12);
}
static void zfcp_dbf_tag(char **p, const char *label, const char *tag)
{
int i;
@ -107,7 +94,7 @@ static int zfcp_dbf_view_header(debug_info_t *id, struct debug_view *view,
char *p = out_buf;
if (strncmp(dump->tag, "dump", ZFCP_DBF_TAG_SIZE) != 0) {
zfcp_dbf_timestamp(entry->id.stck, &t);
stck_to_timespec(entry->id.stck, &t);
zfcp_dbf_out(&p, "timestamp", "%011lu:%06lu",
t.tv_sec, t.tv_nsec);
zfcp_dbf_out(&p, "cpu", "%02i", entry->id.fields.cpuid);
@ -320,7 +307,7 @@ static void zfcp_dbf_hba_view_response(char **p,
zfcp_dbf_out(p, "fsf_command", "0x%08x", r->fsf_command);
zfcp_dbf_out(p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
zfcp_dbf_out(p, "fsf_seqno", "0x%08x", r->fsf_seqno);
zfcp_dbf_timestamp(r->fsf_issued, &t);
stck_to_timespec(r->fsf_issued, &t);
zfcp_dbf_out(p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
zfcp_dbf_out(p, "fsf_prot_status", "0x%08x", r->fsf_prot_status);
zfcp_dbf_out(p, "fsf_status", "0x%08x", r->fsf_status);
@ -976,7 +963,7 @@ static int zfcp_dbf_scsi_view_format(debug_info_t *id, struct debug_view *view,
zfcp_dbf_out(&p, "old_fsf_reqid", "0x%0Lx", r->old_fsf_reqid);
zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
zfcp_dbf_timestamp(r->fsf_issued, &t);
stck_to_timespec(r->fsf_issued, &t);
zfcp_dbf_out(&p, "fsf_issued", "%011lu:%06lu", t.tv_sec, t.tv_nsec);
if (strncmp(r->tag, "rslt", ZFCP_DBF_TAG_SIZE) == 0) {