mirror of https://gitee.com/openkylin/linux.git
fffbb5dcfd
This change does two things: Copy-pastes "retint_swapgs:" code into syscall handling code, the copy is under "syscall_return:" label. The code is unchanged apart from some label renames. Removes "opportunistic sysret" code from "retint_swapgs:" code block, since now it won't be reached by syscall return. This in fact removes most of the code in question. text data bss dec hex filename 12530 0 0 12530 30f2 entry_64.o.before 12562 0 0 12562 3112 entry_64.o Run-tested. Acked-and-Tested-by: Borislav Petkov <bp@suse.de> Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Will Drewry <wad@chromium.org> Link: http://lkml.kernel.org/r/1427993219-7291-1-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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