def request_age_ms(cls, request):
"""
Returns the age of the request in milliseconds
This method returns the difference between the current time
(jiffies) and the request's start_time, in milliseconds.
Args:
request(gdb.Value<struct request>): The struct request used
to determine age
Returns:
long: Difference between the request's start_time and
current jiffies in milliseconds.
"""
return kernel.jiffies_to_msec(kernel.jiffies - request['start_time'])
from crash.subsystem.storage import gendisk_name
from crash.subsystem.storage.block import for_each_request_in_queue
from crash.types.list import list_for_each_entry
from crash.util import get_symbol_value
from crash.cache.syscache import kernel, jiffies_to_msec
empty = []
flush_end_io = get_symbol_value('flush_end_io')
for b in for_each_disk():
name = gendisk_name(b)
count = 0
for r in for_each_request_in_queue(b['queue']):
age_in_jiffies = kernel.jiffies - r['start_time']
age = float(int(kernel.jiffies_to_msec(age_in_jiffies))) / 1000
if count == 0:
print name
if r['bio']:
print "{}: {:x} request: age={}s, bio chain".format(
count, int(r.address), age, int(r['bio']))
n = 0
for entry in for_each_bio_in_stack(r['bio']):
print " {}: {}".format(n, entry['description'])
n += 1
else:
if r['end_io'] == flush_end_io:
print "{}: {:x} request: age={}s, pending flush request".format(
count, int(r.address), age)
else:
print "{}: {:x} request: start={}, undecoded".format(
def request_age_ms(cls, request):
return kernel.jiffies_to_msec(kernel.jiffies - request['start_time'])