From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
kvm-ppc@vger.kernel.org
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
npiggin@gmail.com,
Suraj Jitindar Singh <sjitindarsingh@gmail.com>,
kirill@shutemov.name, leonardo@linux.ibm.com
Subject: [PATCH v2 08/22] powerpc/kvm/book3s: switch from raw_spin_*lock to arch_spin_lock.
Date: Thu, 19 Mar 2020 09:25:55 +0530 [thread overview]
Message-ID: <20200319035609.158654-9-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20200319035609.158654-1-aneesh.kumar@linux.ibm.com>
These functions can get called in realmode. Hence use low level
arch_spin_lock which is safe to be called in realmode.
Cc: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
---
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 220305454c23..03f8347de48b 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -948,7 +948,7 @@ static long kvmppc_do_h_page_init_zero(struct kvm_vcpu *vcpu,
return ret;
/* Check if we've been invalidated */
- raw_spin_lock(&kvm->mmu_lock.rlock);
+ arch_spin_lock(&kvm->mmu_lock.rlock.raw_lock);
if (mmu_notifier_retry(kvm, mmu_seq)) {
ret = H_TOO_HARD;
goto out_unlock;
@@ -960,7 +960,7 @@ static long kvmppc_do_h_page_init_zero(struct kvm_vcpu *vcpu,
kvmppc_update_dirty_map(memslot, dest >> PAGE_SHIFT, PAGE_SIZE);
out_unlock:
- raw_spin_unlock(&kvm->mmu_lock.rlock);
+ arch_spin_unlock(&kvm->mmu_lock.rlock.raw_lock);
return ret;
}
@@ -984,7 +984,7 @@ static long kvmppc_do_h_page_init_copy(struct kvm_vcpu *vcpu,
return ret;
/* Check if we've been invalidated */
- raw_spin_lock(&kvm->mmu_lock.rlock);
+ arch_spin_lock(&kvm->mmu_lock.rlock.raw_lock);
if (mmu_notifier_retry(kvm, mmu_seq)) {
ret = H_TOO_HARD;
goto out_unlock;
@@ -996,7 +996,7 @@ static long kvmppc_do_h_page_init_copy(struct kvm_vcpu *vcpu,
kvmppc_update_dirty_map(dest_memslot, dest >> PAGE_SHIFT, PAGE_SIZE);
out_unlock:
- raw_spin_unlock(&kvm->mmu_lock.rlock);
+ arch_spin_unlock(&kvm->mmu_lock.rlock.raw_lock);
return ret;
}
--
2.24.1
next prev parent reply other threads:[~2020-03-19 4:13 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-19 3:55 [PATCH v2 00/22] Avoid IPI while updating page table entries Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 01/22] powerpc/pkeys: Avoid using lockless page table walk Aneesh Kumar K.V
2020-04-03 0:28 ` Ram Pai
2020-04-05 13:37 ` Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 02/22] powerpc/pkeys: Check vma before returning key fault error to the user Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 03/22] powerpc/mm/hash64: use _PAGE_PTE when checking for pte_present Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 04/22] powerpc/hash64: Restrict page table lookup using init_mm with __flush_hash_table_range Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 05/22] powerpc/book3s64/hash: Use the pte_t address from the caller Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 06/22] powerpc/mce: Don't reload pte val in addr_to_pfn Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 07/22] powerpc/perf/callchain: Use __get_user_pages_fast in read_user_stack_slow Aneesh Kumar K.V
2020-03-19 3:55 ` Aneesh Kumar K.V [this message]
2020-03-19 3:55 ` [PATCH v2 09/22] powerpc/kvm/book3s: Add helper to walk partition scoped linux page table Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 10/22] powerpc/kvm/nested: Add helper to walk nested shadow " Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 11/22] powerpc/kvm/book3s: Use kvm helpers to walk shadow or secondary table Aneesh Kumar K.V
2020-03-19 3:55 ` [PATCH v2 12/22] powerpc/kvm/book3s: Add helper for host page table walk Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 13/22] powerpc/kvm/book3s: Use find_kvm_host_pte in page fault handler Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 14/22] powerpc/kvm/book3s: Use find_kvm_host_pte in h_enter Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 15/22] powerpc/kvm/book3s: use find_kvm_host_pte in pute_tce functions Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 16/22] powerpc/kvm/book3s: Avoid using rmap to protect parallel page table update Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 17/22] powerpc/kvm/book3s: use find_kvm_host_pte in kvmppc_book3s_instantiate_page Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 18/22] powerpc/kvm/book3s: Use find_kvm_host_pte in kvmppc_get_hpa Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 19/22] powerpc/kvm/book3s: Use pte_present instead of opencoding _PAGE_PRESENT check Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 20/22] powerpc/mm/book3s64: Avoid sending IPI on clearing PMD Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 21/22] mm: change pmdp_huge_get_and_clear_full take vm_area_struct as arg Aneesh Kumar K.V
2020-03-19 3:56 ` [PATCH v2 22/22] powerpc/mm/book3s64: Fix MADV_DONTNEED and parallel page fault race Aneesh Kumar K.V
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