+ riscv-mm-accelerate-pagefault-when-badaccess-fix.patch added to mm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: riscv-mm-accelerate-pagefault-when-badaccess-fix
has been added to the -mm mm-unstable branch.  Its filename is
     riscv-mm-accelerate-pagefault-when-badaccess-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/riscv-mm-accelerate-pagefault-when-badaccess-fix.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: riscv-mm-accelerate-pagefault-when-badaccess-fix
Date: Wed, 10 Apr 2024 16:07:41 +0800

use `cause' rather than SIGSEGV, per Alexandre

Link: https://lkml.kernel.org/r/ac978061-ce1a-40a4-8b0a-61883b42bea7@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/riscv/mm/fault.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/riscv/mm/fault.c~riscv-mm-accelerate-pagefault-when-badaccess-fix
+++ a/arch/riscv/mm/fault.c
@@ -293,8 +293,8 @@ void handle_page_fault(struct pt_regs *r
 	if (unlikely(access_error(cause, vma))) {
 		vma_end_read(vma);
 		count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
-		tsk->thread.bad_cause = SEGV_ACCERR;
-		bad_area_nosemaphore(regs, code, addr);
+		tsk->thread.bad_cause = cause;
+		bad_area_nosemaphore(regs, SEGV_ACCERR, addr);
 		return;
 	}
 
_

Patches currently in -mm which might be from wangkefeng.wang@huawei.com are

mm-backing-dev-use-group-allocation-free-of-per-cpu-counters-api.patch
mm-remove-__set_page_dirty_nobuffers.patch
arm64-mm-cleanup-__do_page_fault.patch
arm64-mm-accelerate-pagefault-when-vm_fault_badaccess.patch
arm-mm-accelerate-pagefault-when-vm_fault_badaccess.patch
powerpc-mm-accelerate-pagefault-when-badaccess.patch
riscv-mm-accelerate-pagefault-when-badaccess.patch
riscv-mm-accelerate-pagefault-when-badaccess-fix.patch
s390-mm-accelerate-pagefault-when-badaccess.patch
x86-mm-accelerate-pagefault-when-badaccess.patch
arm64-mm-drop-vm_fault_badmap-vm_fault_badaccess.patch
arm-mm-drop-vm_fault_badmap-vm_fault_badaccess.patch