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ac0572e660
freebsd-dev/sys/vm
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Doug Moore ac0572e660 radix_tree: compute slot from keybarr 
The computation of keybarr(), the function that determines when a
search has failed at a non-leaf node, can be done in a way that
computes the 'slot' value when keybarr() fails, which is exactly when
slot() would next be invoked. Computing things this way saves space in
search loops.

This reduces the amd64 coding of the search loop in vm_radix_lookup
from 40 bytes to 28 bytes.

Reviewed by:	alc
Tested by:	pho (as part of a larger change)
Differential Revision:	https://reviews.freebsd.org/D41235
2023-07-30 15:12:06 -05:00
..
_vm_phys.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
_vm_radix.h Every path in a radix trie ends with a leaf or a NULL. By replacing 2023-07-28 11:39:52 -05:00
device_pager.c
memguard.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
memguard.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
phys_pager.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
pmap.h
redzone.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
redzone.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
sg_pager.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
swap_pager.c vm: fix a number of functions to match the expected prototypes 2023-04-25 19:58:18 +02:00
swap_pager.h Make swap_pager_freespace() global 2022-12-09 14:15:37 +02:00
uma_core.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
uma_dbg.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
uma_dbg.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
uma_int.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
uma.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
vm_domainset.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
vm_domainset.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
vm_dumpset.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
vm_extern.h kmem_malloc/free: Use void * instead of vm_offset_t for kernel pointers. 2022-09-22 15:09:19 -07:00
vm_fault.c vm_fault: move FAULT_* return codes out of range for Mach errors 2023-06-28 00:03:14 +03:00
vm_glue.c vm: ansify 2023-02-13 18:23:21 +00:00
vm_init.c tslog: Annotate parts of SYSINIT cpu 2023-06-04 10:16:35 -07:00
vm_kern.c tslog: Annotate parts of SYSINIT cpu 2023-06-04 10:16:35 -07:00
vm_kern.h
vm_map.c vm: Fix vm_map_find_min() 2023-07-26 00:24:50 -05:00
vm_map.h mmap(MAP_STACK): on stack grow, use original protection 2023-07-20 17:11:42 +03:00
vm_meter.c
vm_mmap.c vm_mmap_object: Update the spelling of true/false 2023-07-27 00:25:53 -05:00
vm_object.c vm_radix_init: use initializer 2023-07-14 01:49:55 -05:00
vm_object.h vm: add VM_OBJECT_UNLOCK 2023-03-11 11:08:21 +00:00
vm_page.c vm_phys: add binary segment search 2023-06-16 01:43:45 -05:00
vm_page.h vm_phys: add binary segment search 2023-06-16 01:43:45 -05:00
vm_pageout.c vm: reduce lock contention when processing vm batchqueues 2022-12-14 14:34:07 -05:00
vm_pageout.h protosw: retire pr_drain and use EVENTHANDLER(9) directly 2022-08-17 11:50:31 -07:00
vm_pagequeue.h vm: centralize VM_BATCHQUEUE_SIZE definition 2023-01-21 14:30:00 -05:00
vm_pager.c vm: fix a number of functions to match the expected prototypes 2023-04-25 19:58:18 +02:00
vm_pager.h vm_pager: add method to veto page allocation 2022-12-09 14:15:37 +02:00
vm_param.h
vm_phys.c vm_phys: Fix typo in 9e81742892 2023-06-16 03:12:42 -05:00
vm_phys.h vm_phys: add binary segment search 2023-06-16 01:43:45 -05:00
vm_radix.c radix_tree: compute slot from keybarr 2023-07-30 15:12:06 -05:00
vm_radix.h Every path in a radix trie ends with a leaf or a NULL. By replacing 2023-07-28 11:39:52 -05:00
vm_reserv.c spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
vm_reserv.h spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-05-12 10:44:03 -06:00
vm_swapout_dummy.c
vm_swapout.c
vm_unix.c
vm.h vm/vm.h: cleanup 2022-09-17 11:58:52 +03:00
vnode_pager.c vnode_pager_input: return runningbufspace back 2023-03-26 00:55:29 +02:00
vnode_pager.h