Commit-ID:  af2ebdcf044039e89da3cd44c0f04dea317020c5
Gitweb:     https://git.kernel.org/tip/af2ebdcf044039e89da3cd44c0f04dea317020c5
Author:     Andy Lutomirski <[email protected]>
AuthorDate: Wed, 21 Nov 2018 15:11:26 -0800
Committer:  Ingo Molnar <[email protected]>
CommitDate: Thu, 22 Nov 2018 09:24:27 +0100

x86/vsyscall/64: Use X86_PF constants in the simulated #PF error code

Rather than hardcoding 6 with a comment, use the defined constants.

Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Yu-cheng Yu <[email protected]>
Link: 
http://lkml.kernel.org/r/e023f20352b0d05a8b0205629897917262d2ad68.1542841400.git.l...@kernel.org
Signed-off-by: Ingo Molnar <[email protected]>
---
 arch/x86/entry/vsyscall/vsyscall_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c 
b/arch/x86/entry/vsyscall/vsyscall_64.c
index 85fd85d52ffd..d78bcc03e60e 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -102,7 +102,7 @@ static bool write_ok_or_segv(unsigned long ptr, size_t size)
        if (!access_ok(VERIFY_WRITE, (void __user *)ptr, size)) {
                struct thread_struct *thread = &current->thread;
 
-               thread->error_code      = 6;  /* user fault, no page, write */
+               thread->error_code      = X86_PF_USER | X86_PF_WRITE;
                thread->cr2             = ptr;
                thread->trap_nr         = X86_TRAP_PF;
 

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