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Ned Bass 184c687387 Emulate illumos interface cv_timedwait_hires() 
Needed for Illumos #3582. This interface is supposed to support
a variable-resolution timeout with nanosecond granularity.  This
implementation rounds up to microsecond resolution, as nanosecond-
precision timing is rarely needed for real-world performance
tuning and may incur unnecessary busy-waiting.  usleep_range() is
used if available, otherwise udelay() or msleep() are used
depending on the length of the delay interval.

Add flags from sys/callo.h as these are used to control the behavior of
cv_timedwait_hires().  Specifically,

CALLOUT_FLAG_ABSOLUTE
    Normally, the expiration passed to the timeout API functions is
    an expiration interval. If this flag is specified, then it is
    interpreted as the expiration time itself.

CALLOUT_FLAG_ROUNDUP
    Roundup the expiration time to the next resolution boundary. If this
    flag is not specified, the expiration time is rounded down.

References:
    https://www.illumos.org/issues/3582
    illumos/illumos-gate@0689f76

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #304
 		2013-11-04 09:49:24 -08:00
..
fm Change spl-kmod-devel install path 2013-03-14 12:01:05 -07:00
fs Change spl-kmod-devel install path 2013-03-14 12:01:05 -07:00
sysevent Change spl-kmod-devel install path 2013-03-14 12:01:05 -07:00
Makefile.am Emulate illumos interface cv_timedwait_hires() 2013-11-04 09:49:24 -08:00
acl.h Refresh links to web site 2013-03-04 19:09:34 -08:00
acl_impl.h Refresh links to web site 2013-03-04 19:09:34 -08:00
atomic.h Refresh links to web site 2013-03-04 19:09:34 -08:00
attr.h Refresh links to web site 2013-03-04 19:09:34 -08:00
bitmap.h Refresh links to web site 2013-03-04 19:09:34 -08:00
bootconf.h Refresh links to web site 2013-03-04 19:09:34 -08:00
bootprops.h Refresh links to web site 2013-03-04 19:09:34 -08:00
buf.h Refresh links to web site 2013-03-04 19:09:34 -08:00
byteorder.h Refresh links to web site 2013-03-04 19:09:34 -08:00
callb.h Refresh links to web site 2013-03-04 19:09:34 -08:00
callo.h Emulate illumos interface cv_timedwait_hires() 2013-11-04 09:49:24 -08:00
cmn_err.h Refresh links to web site 2013-03-04 19:09:34 -08:00
compress.h Refresh links to web site 2013-03-04 19:09:34 -08:00
condvar.h Emulate illumos interface cv_timedwait_hires() 2013-11-04 09:49:24 -08:00
conf.h Refresh links to web site 2013-03-04 19:09:34 -08:00
console.h Refresh links to web site 2013-03-04 19:09:34 -08:00
cpupart.h Refresh links to web site 2013-03-04 19:09:34 -08:00
cpuvar.h Refresh links to web site 2013-03-04 19:09:34 -08:00
crc32.h Refresh links to web site 2013-03-04 19:09:34 -08:00
cred.h Linux 3.8 compat: Use kuid_t/kgid_t when required 2013-08-09 10:09:29 -07:00
ctype.h Refresh links to web site 2013-03-04 19:09:34 -08:00
ddi.h Refresh links to web site 2013-03-04 19:09:34 -08:00
debug.h Fix ASSERT0 and VERIFY0 macro typo 2013-06-21 15:38:46 -07:00
dirent.h Refresh links to web site 2013-03-04 19:09:34 -08:00
disp.h Add kpreempt() compatibility macro 2013-10-09 13:52:55 -07:00
dkio.h Refresh links to web site 2013-03-04 19:09:34 -08:00
dklabel.h Refresh links to web site 2013-03-04 19:09:34 -08:00
dnlc.h Refresh links to web site 2013-03-04 19:09:34 -08:00
dumphdr.h Refresh links to web site 2013-03-04 19:09:34 -08:00
efi_partition.h Refresh links to web site 2013-03-04 19:09:34 -08:00
errno.h Refresh links to web site 2013-03-04 19:09:34 -08:00
extdirent.h Refresh links to web site 2013-03-04 19:09:34 -08:00
fcntl.h Refresh links to web site 2013-03-04 19:09:34 -08:00
file.h Refresh links to web site 2013-03-04 19:09:34 -08:00
idmap.h Refresh links to web site 2013-03-04 19:09:34 -08:00
int_limits.h Refresh links to web site 2013-03-04 19:09:34 -08:00
int_types.h Refresh links to web site 2013-03-04 19:09:34 -08:00
inttypes.h Refresh links to web site 2013-03-04 19:09:34 -08:00
isa_defs.h Refresh links to web site 2013-03-04 19:09:34 -08:00
kidmap.h Refresh links to web site 2013-03-04 19:09:34 -08:00
kmem.h Refresh links to web site 2013-03-04 19:09:34 -08:00
kobj.h Refresh links to web site 2013-03-04 19:09:34 -08:00
kstat.h 3537 add kstat_waitq_enter and friends 2013-10-25 13:41:52 -07:00
list.h Refresh links to web site 2013-03-04 19:09:34 -08:00
mkdev.h Refresh links to web site 2013-03-04 19:09:34 -08:00
mntent.h Refresh links to web site 2013-03-04 19:09:34 -08:00
modctl.h Refresh links to web site 2013-03-04 19:09:34 -08:00
mode.h Refresh links to web site 2013-03-04 19:09:34 -08:00
mount.h Refresh links to web site 2013-03-04 19:09:34 -08:00
mutex.h Refresh links to web site 2013-03-04 19:09:34 -08:00
note.h Refresh links to web site 2013-03-04 19:09:34 -08:00
open.h Refresh links to web site 2013-03-04 19:09:34 -08:00
param.h Refresh links to web site 2013-03-04 19:09:34 -08:00
pathname.h Refresh links to web site 2013-03-04 19:09:34 -08:00
policy.h Refresh links to web site 2013-03-04 19:09:34 -08:00
pool.h Refresh links to web site 2013-03-04 19:09:34 -08:00
priv_impl.h Refresh links to web site 2013-03-04 19:09:34 -08:00
proc.h Refresh links to web site 2013-03-04 19:09:34 -08:00
processor.h Refresh links to web site 2013-03-04 19:09:34 -08:00
pset.h Refresh links to web site 2013-03-04 19:09:34 -08:00
random.h Refresh links to web site 2013-03-04 19:09:34 -08:00
refstr.h Refresh links to web site 2013-03-04 19:09:34 -08:00
resource.h Refresh links to web site 2013-03-04 19:09:34 -08:00
rwlock.h Refresh links to web site 2013-03-04 19:09:34 -08:00
sdt.h Define SET_ERROR() 2013-10-09 14:20:46 -07:00
sid.h Refresh links to web site 2013-03-04 19:09:34 -08:00
signal.h Refresh links to web site 2013-03-04 19:09:34 -08:00
stat.h Refresh links to web site 2013-03-04 19:09:34 -08:00
stropts.h Refresh links to web site 2013-03-04 19:09:34 -08:00
sunddi.h Refresh links to web site 2013-03-04 19:09:34 -08:00
sunldi.h Refresh links to web site 2013-03-04 19:09:34 -08:00
sysdc.h Refresh links to web site 2013-03-04 19:09:34 -08:00
sysevent.h Refresh links to web site 2013-03-04 19:09:34 -08:00
sysmacros.h Linux 3.9 compat: Include linux/sched/rt.h 2013-03-14 10:43:19 -07:00
systeminfo.h Refresh links to web site 2013-03-04 19:09:34 -08:00
systm.h Refresh links to web site 2013-03-04 19:09:34 -08:00
t_lock.h Refresh links to web site 2013-03-04 19:09:34 -08:00
taskq.h Refresh links to web site 2013-03-04 19:09:34 -08:00
thread.h Add wrappers for accessing PID and command info 2013-10-16 14:48:35 -07:00
time.h Emulate illumos interface cv_timedwait_hires() 2013-11-04 09:49:24 -08:00
timer.h Fix delay() 2013-05-01 16:35:47 -07:00
tsd.h Refresh links to web site 2013-03-04 19:09:34 -08:00
types.h Refresh links to web site 2013-03-04 19:09:34 -08:00
types32.h Refresh links to web site 2013-03-04 19:09:34 -08:00
u8_textprep.h Refresh links to web site 2013-03-04 19:09:34 -08:00
uio.h Refresh links to web site 2013-03-04 19:09:34 -08:00
unistd.h Refresh links to web site 2013-03-04 19:09:34 -08:00
utsname.h Refresh links to web site 2013-03-04 19:09:34 -08:00
va_list.h Refresh links to web site 2013-03-04 19:09:34 -08:00
varargs.h Refresh links to web site 2013-03-04 19:09:34 -08:00
vfs.h Refresh links to web site 2013-03-04 19:09:34 -08:00
vfs_opreg.h Refresh links to web site 2013-03-04 19:09:34 -08:00
vmsystm.h Linux 3.11 compat: Replace num_physpages with totalram_pages 2013-08-08 09:14:29 -07:00
vnode.h Refresh links to web site 2013-03-04 19:09:34 -08:00
zmod.h Refresh links to web site 2013-03-04 19:09:34 -08:00
zone.h Refresh links to web site 2013-03-04 19:09:34 -08:00