From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 1 Mar 2021 19:29:09 +0000 (-0500)
Subject: arch/mips/kernel/traps: Use vma_lookup() instead of find_vma_intersection()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=51ea0405b7deeed0b53e63886e11bcfcd50a9169;p=users%2Fjedix%2Flinux-maple.git

arch/mips/kernel/traps: Use vma_lookup() instead of find_vma_intersection()

vma_lookup() is more efficient

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index e0352958e2f7..e3ab87908aa0 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -797,8 +797,8 @@ int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcr31)
 
 	case SIGSEGV:
 		mmap_read_lock(current->mm);
-		vma = find_vma(current->mm, (unsigned long)fault_addr);
-		if (vma && (vma->vm_start <= (unsigned long)fault_addr))
+		vma = vma_lookup(current->mm, (unsigned long)fault_addr);
+		if (vma)
 			si_code = SEGV_ACCERR;
 		else
 			si_code = SEGV_MAPERR;