diff options
| author |   Brian Gerst <brgerst@gmail.com> | 2016-05-04 22:44:37 -0400 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-05-05 08:37:30 +0200 |
| commit | 1e17880371f85d3d866962e04ba3567c0654a125 (patch) | |
| tree | a342af1cd9c697bf77940847d49b64764759e8fc /arch/x86/entry/entry_32.S | |
| parent | x86/entry, sched/x86: Don't save/restore EFLAGS on task switch (diff) | |
| download | linux-dev-1e17880371f85d3d866962e04ba3567c0654a125.tar.xz linux-dev-1e17880371f85d3d866962e04ba3567c0654a125.zip | |
x86/entry/32: Remove GET_THREAD_INFO() from entry code
The entry code used to cache the thread_info pointer in the EBP register,
but all the code that used it has been moved to C. Remove the unused
code to get the pointer.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.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/1462416278-11974-3-git-send-email-brgerst@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/entry/entry_32.S')
| -rw-r--r-- | arch/x86/entry/entry_32.S | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index c84d99bfff94..983e5d3a0d27 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -207,7 +207,6 @@ ENTRY(ret_from_fork) pushl %eax call schedule_tail - GET_THREAD_INFO(%ebp) popl %eax /* When we fork, we trace the syscall return in the child, too. */ @@ -219,7 +218,6 @@ END(ret_from_fork) ENTRY(ret_from_kernel_thread) pushl %eax call schedule_tail - GET_THREAD_INFO(%ebp) popl %eax movl PT_EBP(%esp), %eax call *PT_EBX(%esp) @@ -247,7 +245,6 @@ ENDPROC(ret_from_kernel_thread) ret_from_exception: preempt_stop(CLBR_ANY) ret_from_intr: - GET_THREAD_INFO(%ebp) #ifdef CONFIG_VM86 movl PT_EFLAGS(%esp), %eax # mix EFLAGS and CS movb PT_CS(%esp), %al |