WSL2-Linux-Kernel/arch/x86/mm
Nadav Amit 09c5272e48 x86/mm/tlb: Do not make is_lazy dirty for no reason
Blindly writing to is_lazy for no reason, when the written value is
identical to the old value, makes the cacheline dirty for no reason.
Avoid making such writes to prevent cache coherency traffic for no
reason.

Suggested-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20210220231712.2475218-7-namit@vmware.com
2021-03-06 12:59:10 +01:00
..
pat x86: fix seq_file iteration for pat/memtype.c 2021-02-26 09:41:05 -08:00
Makefile kbuild: remove cc-option test of -fno-stack-protector 2020-07-07 11:13:10 +09:00
amdtopology.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
cpu_entry_area.c x86/dumpstack/64: Add noinstr version of get_stack_info() 2020-09-09 11:33:19 +02:00
debug_pagetables.c mm: introduce include/linux/pgtable.h 2020-06-09 09:39:13 -07:00
dump_pagetables.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
extable.c This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
fault.c kfence: add test suite 2021-02-26 09:41:02 -08:00
highmem_32.c x86/mm/highmem: Use generic kmap atomic implementation 2020-11-06 23:14:55 +01:00
hugetlbpage.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
ident_map.c x86/mm/ident_map: Check for errors from ident_pud_init() 2020-10-28 14:48:30 +01:00
init.c x86/mm/tlb: Privatize cpu_tlbstate 2021-03-06 12:59:10 +01:00
init_32.c x86/mm/highmem: Use generic kmap atomic implementation 2020-11-06 23:14:55 +01:00
init_64.c x86/mm/64: Update comment in preallocate_vmalloc_pages() 2020-08-15 13:56:16 +02:00
iomap_32.c io-mapping: Cleanup atomic iomap 2020-11-06 23:14:58 +01:00
ioremap.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
kasan_init_64.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
kaslr.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
kmmio.c Misc changes: 2020-06-05 11:18:53 -07:00
maccess.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
mem_encrypt.c Do not unroll string I/O for SEV-ES guests because they support it. 2021-02-20 19:16:02 -08:00
mem_encrypt_boot.S mm: introduce include/linux/pgtable.h 2020-06-09 09:39:13 -07:00
mem_encrypt_identity.c x86/mm/mem_encrypt: Fix definition of PMD_FLAGS_DEC_WP 2020-12-10 12:28:06 +01:00
mm_internal.h x86/mm: thread pgprot_t through init_memory_mapping() 2020-04-10 15:36:21 -07:00
mmap.c x86/mm/mmap: Fix -Wmissing-prototypes warnings 2020-04-22 20:19:48 +02:00
mmio-mod.c x86: Remove definition of DEBUG 2021-01-15 08:23:10 +01:00
numa.c mm: fix phys_to_target_node() and memory_add_physaddr_to_nid() exports 2020-11-22 10:48:22 -08:00
numa_32.c x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit 2020-05-28 18:34:30 +02:00
numa_64.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
numa_emulation.c x86/numa: cleanup configuration dependent command-line options 2020-10-13 18:38:27 -07:00
numa_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pf_in.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pf_in.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pgtable.c x86/mm: Fix leak of pmd ptlock 2021-01-05 11:40:23 +01:00
pgtable_32.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
physaddr.c mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
physaddr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pkeys.c mm/vma: introduce VM_ACCESS_FLAGS 2020-04-10 15:36:21 -07:00
pti.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
setup_nx.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
srat.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
testmmiotrace.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
tlb.c x86/mm/tlb: Do not make is_lazy dirty for no reason 2021-03-06 12:59:10 +01:00