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authorH.J. Lu <hjl.tools@gmail.com>2016-07-14 22:31:53 +0300
committerIngo Molnar <mingo@kernel.org>2016-07-15 11:30:26 +0300
commit3ebfd81f7fb3e81a754e37283b7f38c62244641a (patch)
tree0571e685675d58af67643e291d2b57bfd242a70d /arch/x86/include/asm/unistd.h
parenteb43e8f85fffc1ba535e0362a872101dfe48abe3 (diff)
downloadlinux-3ebfd81f7fb3e81a754e37283b7f38c62244641a.tar.xz
x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2
Don't use the same syscall numbers for 2 different syscalls: 534 x32 preadv compat_sys_preadv64 535 x32 pwritev compat_sys_pwritev64 534 x32 preadv2 compat_sys_preadv2 535 x32 pwritev2 compat_sys_pwritev2 Add compat_sys_preadv64v2() and compat_sys_pwritev64v2() so that 64-bit offset is passed in one 64-bit register on x32, similar to compat_sys_preadv64() and compat_sys_pwritev64(). Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/CAMe9rOovCMf-RQfx_n1U_Tu_DX1BYkjtFr%3DQ4-_PFVSj9BCzUA@mail.gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/unistd.h')
-rw-r--r--arch/x86/include/asm/unistd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 2b19caa4081c..32712a925f26 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -26,6 +26,8 @@
# define __ARCH_WANT_COMPAT_SYS_GETDENTS64
# define __ARCH_WANT_COMPAT_SYS_PREADV64
# define __ARCH_WANT_COMPAT_SYS_PWRITEV64
+# define __ARCH_WANT_COMPAT_SYS_PREADV64V2
+# define __ARCH_WANT_COMPAT_SYS_PWRITEV64V2
# endif