linux_dsm_epyc7002/arch/x86/entry
Dmitry Safonov 67dece7d4c x86/vdso: Set vDSO pointer only after success
Those pointers were initialized before call to _install_special_mapping()
after the commit:

  f7b6eb3fa0 ("x86: Set context.vdso before installing the mapping")

This is not required anymore as special mappings have their vma name and
don't use arch_vma_name() after commit:

  a62c34bd2a ("x86, mm: Improve _install_special_mapping and fix x86 vdso naming")

So, this way to init looks less entangled.

I even belive that we can remove NULL initializers:

 - on failure load_elf_binary() will not start a new thread;
 - arch_prctl will have the same pointers as before syscall.

Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: 0x7f454c46@gmail.com
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
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 <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mm@kvack.org
Cc: oleg@redhat.com
Link: http://lkml.kernel.org/r/20161027141516.28447-3-dsafonov@virtuozzo.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-10-28 08:15:55 +02:00
..
syscalls x86, pkeys: remove cruft from never-merged syscalls 2016-10-17 14:16:13 -07:00
vdso x86/vdso: Set vDSO pointer only after success 2016-10-28 08:15:55 +02:00
vsyscall Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2016-07-29 17:38:46 -07:00
calling.h x86/entry/unwind: Create stack frames for saved interrupt registers 2016-10-21 09:26:03 +02:00
common.c x86/entry: Get rid of pt_regs_to_thread_info() 2016-09-15 08:25:12 +02:00
entry_32.S x86/entry/unwind: Create stack frames for saved interrupt registers 2016-10-21 09:26:03 +02:00
entry_64_compat.S x86/asm/entry/32: Simplify pushes of zeroed pt_regs->REGs 2016-05-03 08:19:40 +02:00
entry_64.S x86/entry64: Remove unused audit related macros 2016-10-25 11:43:31 +02:00
Makefile x86/build: Reduce the W=1 warnings noise when compiling x86 syscall tables 2016-08-10 16:05:16 +02:00
syscall_32.c x86/syscalls: Add syscall entry qualifiers 2016-01-29 09:46:38 +01:00
syscall_64.c x86/entry/64: Always run ptregs-using syscalls on the slow path 2016-01-29 09:46:38 +01:00
thunk_32.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00
thunk_64.S x86: move exports to actual definitions 2016-08-07 23:47:15 -04:00