Re: [PATCH 8/9] mm: remove compat_process_vm_{readv,writev}
From: Arnd Bergmann <arnd@arndb.de>
Date: 2020-09-18 13:49:03
Also in:
io-uring, keyrings, linux-arch, linux-arm-kernel, linux-block, linux-fsdevel, linux-mips, linux-mm, linux-s390, linux-scsi, linux-security-module, linuxppc-dev, lkml, sparclinux
On Fri, Sep 18, 2020 at 2:45 PM Christoph Hellwig [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Now that import_iovec handles compat iovecs, the native syscalls can be used for the compat case as well.diff --git a/arch/x86/entry/syscall_x32.c b/arch/x86/entry/syscall_x32.c index a4840b9d50ad14..f2fe0a33bcfdd5 100644 --- a/arch/x86/entry/syscall_x32.c +++ b/arch/x86/entry/syscall_x32.c@@ -17,6 +17,8 @@ #define __x32_sys_getsockopt __x64_sys_getsockopt #define __x32_sys_setsockopt __x64_sys_setsockopt #define __x32_sys_vmsplice __x64_sys_vmsplice +#define __x32_sys_process_vm_readv __x64_sys_process_vm_readv +#define __x32_sys_process_vm_writev __x64_sys_process_vm_writev #define __SYSCALL_64(nr, sym)
I forgot this hack existed, and just sent a patch with subject "x86: add
__X32_COND_SYSCALL() macro" instead.
If I understand this right, the macros above should no longer be needed
once my patch gets merged.
Arnd