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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-09-10 10:39:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-09-10 10:39:31 -0700 |
| commit | e56b2b6057996c5f48da518c79d6590f8bfaabf3 (patch) | |
| tree | 278ec502471ecad938adbaca4279585aa3eb2ff9 /arch/x86/kernel | |
| parent | e79dbf03d87b2d9978d76ddc1c06424b07b215ad (diff) | |
| parent | 3d7d72a34e05b23e21bafc8bfb861e73c86b31f3 (diff) | |
| download | linux-e56b2b6057996c5f48da518c79d6590f8bfaabf3.tar.gz linux-e56b2b6057996c5f48da518c79d6590f8bfaabf3.tar.bz2 linux-e56b2b6057996c5f48da518c79d6590f8bfaabf3.zip | |
Merge tag 'x86-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Fix preemption delays in the SGX code, remove unnecessarily
UAPI-exported code, fix a ld.lld linker (in)compatibility quirk and
make the x86 SMP init code a bit more conservative to fix kexec()
lockups"
* tag 'x86-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sgx: Break up long non-preemptible delays in sgx_vepc_release()
x86: Remove the arch_calc_vm_prot_bits() macro from the UAPI
x86/build: Fix linker fill bytes quirk/incompatibility for ld.lld
x86/smp: Don't send INIT to non-present and non-booted CPUs
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/cpu/sgx/virt.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/vmlinux.lds.S | 2 |
3 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/sgx/virt.c b/arch/x86/kernel/cpu/sgx/virt.c index c3e37eaec8ec..7aaa3652e31d 100644 --- a/arch/x86/kernel/cpu/sgx/virt.c +++ b/arch/x86/kernel/cpu/sgx/virt.c @@ -204,6 +204,7 @@ static int sgx_vepc_release(struct inode *inode, struct file *file) continue; xa_erase(&vepc->page_array, index); + cond_resched(); } /* @@ -222,6 +223,7 @@ static int sgx_vepc_release(struct inode *inode, struct file *file) list_add_tail(&epc_page->list, &secs_pages); xa_erase(&vepc->page_array, index); + cond_resched(); } /* @@ -243,6 +245,7 @@ static int sgx_vepc_release(struct inode *inode, struct file *file) if (sgx_vepc_free_page(epc_page)) list_add_tail(&epc_page->list, &secs_pages); + cond_resched(); } if (!list_empty(&secs_pages)) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index d7667a29acf3..4e45ff44aa07 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1250,7 +1250,7 @@ bool smp_park_other_cpus_in_init(void) if (this_cpu) return false; - for_each_present_cpu(cpu) { + for_each_cpu_and(cpu, &cpus_booted_once_mask, cpu_present_mask) { if (cpu == this_cpu) continue; apicid = apic->cpu_present_to_apicid(cpu); diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 83d41c2601d7..f15fb71f280e 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -156,7 +156,7 @@ SECTIONS ALIGN_ENTRY_TEXT_END *(.gnu.warning) - } :text =0xcccc + } :text = 0xcccccccc /* End of text section, which should occupy whole number of pages */ _etext = .; |