linux/arch/powerpc
Matthew Wilcox (Oracle) 51a752c28b powerpc: implement arch_xor_unlock_is_negative_byte on 32-bit
Simply remove the ifdef.  The assembly is identical to that in the
non-optimised case of test_and_clear_bits() on PPC32, and it's not clear
to me how the PPC32 optimisation works, nor whether it would work for
arch_xor_unlock_is_negative_byte().  If that optimisation would work,
someone can implement it later, but this is more efficient than the
implementation in filemap.c.

Link: https://lkml.kernel.org/r/20231004165317.1061855-12-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-18 14:34:17 -07:00
..
boot powerpc: dts: add missing space before { 2023-08-25 08:39:30 +10:00
configs Kbuild updates for v6.6 2023-09-05 11:01:47 -07:00
crypto This push fixes a random config build failure on powerpc. 2023-09-01 15:39:25 -07:00
include powerpc: implement arch_xor_unlock_is_negative_byte on 32-bit 2023-10-18 14:34:17 -07:00
kernel powerpc/stacktrace: Fix arch_stack_walk_reliable() 2023-09-22 20:29:27 +10:00
kexec powerpc: Move DMA64_PROPNAME define to a header 2023-08-18 17:03:15 +10:00
kvm powerpc updates for 6.6 2023-08-31 12:43:10 -07:00
lib powerpc: Drop zalloc_maybe_bootmem() 2023-08-24 22:33:16 +10:00
math-emu powerpc/math-emu: Inhibit W=1 warnings 2022-09-08 11:11:18 +10:00
mm mm: hugetlb: add huge page size param to set_huge_pte_at() 2023-09-29 17:20:47 -07:00
net powerpc/bpf: populate extable entries only during the last pass 2023-05-15 15:40:31 +10:00
perf powerpc/perf/hv-24x7: Update domain value check 2023-09-18 12:23:47 +10:00
platforms powerpc/82xx: Select FSL_SOC 2023-09-18 12:23:48 +10:00
purgatory powerpc/purgatory: remove PGO flags 2023-06-12 11:31:50 -07:00
sysdev TTY/Serial driver changes for 6.6-rc1 2023-09-01 09:38:00 -07:00
tools powerpc/ftrace: Add support for -fpatchable-function-entry 2023-08-22 00:09:06 +10:00
xmon TTY/Serial driver changes for 6.6-rc1 2023-09-01 09:38:00 -07:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig powerpc: Fix build issue with LD_DEAD_CODE_DATA_ELIMINATION and FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY 2023-09-18 12:23:47 +10:00
Kconfig.debug powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y 2023-07-03 16:07:55 +10:00
Makefile powerpc/64s: Move CPU -mtune options into Kconfig 2023-08-25 08:39:29 +10:00
Makefile.postlink kbuild: remove --include-dir MAKEFLAG from top Makefile 2023-02-05 18:51:22 +09:00