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zfs/include/os/freebsd/spl/sys
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Alexander Motin f3969ea78b Optimize small random numbers generation 
In all places except two spa_get_random() is used for small values,
and the consumers do not require well seeded high quality values.
Switch those two exceptions directly to random_get_pseudo_bytes()
and optimize spa_get_random(), renaming it to random_in_range(),
since it is not related to SPA or ZFS in general.

On FreeBSD directly map random_in_range() to new prng32_bounded() KPI
added in FreeBSD 13.  On Linux and in user-space just reduce the type
used to uint32_t to avoid more expensive 64bit division.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #12183
 		2021-09-14 12:10:17 -07:00
..
Makefile.am Introduce write-mostly sums 2021-06-09 13:05:34 -07:00
acl.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
acl_impl.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
atomic.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
byteorder.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
callb.h Fix typos 2020-06-09 21:24:09 -07:00
ccompat.h FreeBSD: Add support for lockless lookup 2020-08-05 10:19:51 -07:00
ccompile.h FreeBSD: fix HEAD build, conditionally remove FDSYNC defines 2021-01-23 15:39:55 -08:00
cmn_err.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
condvar.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
cred.h FreeBSD: Define crgetzoneid appropriately 2020-08-31 19:42:26 -07:00
ctype.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
debug.h Microoptimizations for VERIFY() and friends 2021-03-11 17:16:09 -08:00
dirent.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
disp.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
dkio.h Remove unnecessary references to slavery 2020-06-10 17:07:59 -07:00
extdirent.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
fcntl.h FreeBSD: fix HEAD build, conditionally remove FDSYNC defines 2021-01-23 15:39:55 -08:00
file.h Rename refcount.h to zfs_refcount.h 2020-07-29 16:35:33 -07:00
freebsd_rwlock.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
idmap.h FreeBSD: Fix UNIX permissions checking 2020-08-18 09:57:07 -07:00
inttypes.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
isa_defs.h Prefix zfs internal endian checks with _ZFS 2020-07-28 13:02:49 -07:00
kidmap.h FreeBSD: Fix UNIX permissions checking 2020-08-18 09:57:07 -07:00
kmem.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
kmem_cache.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
kstat.h Remove pool io kstats 2021-06-10 10:50:16 -07:00
list.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
list_impl.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
lock.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
misc.h Consolidate zfs_holey and zfs_access 2020-10-31 09:40:08 -07:00
mod_os.h FreeBSD: Implement sysctl for fletcher4 impl 2020-12-11 10:29:01 -08:00
mode.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
mount.h freebsd: changes necessary to coexist with dtrace in tree 2020-07-01 09:10:08 -07:00
mutex.h FreeBSD: Don't require zeroing new locks before init 2020-06-13 10:58:10 -07:00
param.h Refactor ccompile.h to not include system headers 2020-07-25 20:09:50 -07:00
policy.h Share zfs_fsync, zfs_read, zfs_write, et al between Linux and FreeBSD 2020-10-21 14:08:06 -07:00
proc.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
processor.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
procfs_list.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
random.h Optimize small random numbers generation 2021-09-14 12:10:17 -07:00
rwlock.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
sdt.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
sid.h FreeBSD: Fix UNIX permissions checking 2020-08-18 09:57:07 -07:00
sig.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
simd.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
simd_x86.h FreeBSD: Sort out kernel FPU headers for 12.1-REL 2020-10-02 17:48:45 -07:00
spl_condvar.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
string.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
strings.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
sunddi.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
sysmacros.h Introduce CPU_SEQID_UNSTABLE 2020-11-02 11:51:12 -08:00
systeminfo.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
systm.h Refactor ccompile.h to not include system headers 2020-07-25 20:09:50 -07:00
taskq.h FreeBSD: make adjustments for the standalone environment 2020-10-13 21:05:49 -07:00
thread.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
time.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
timer.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
trace.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
trace_zfs.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
types.h FreeBSD: minor_t needs to be signed so that -1 is recognized as such 2021-01-07 10:41:27 -08:00
types32.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
uio.h Cleaning up uio headers 2021-02-20 20:16:50 -08:00
uuid.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
vfs.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
vm.h Use new FreeBSD API to largely eliminate object locking 2020-04-17 09:30:26 -07:00
vmsystm.h Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
vnode.h FreeBSD: Prune some unneeded definitions 2021-05-10 12:09:34 -07:00
vnode_impl.h Fix various typos 2021-04-07 13:27:11 -07:00
wmsum.h Introduce write-mostly sums 2021-06-09 13:05:34 -07:00
zmod.h Remove pragma ident lines 2020-08-26 10:35:50 -07:00
zone.h FreeBSD: Simplify INGLOBALZONE 2020-08-31 19:43:08 -07:00