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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-26 01:07:39 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-01 09:58:15 -0400 |
| commit | 969ae0bfb079de892a95aa4ca1e8ac76c4beb57c (patch) | |
| tree | 78f82c9573857f939f9c1caaac07ef455d20de27 | |
| parent | fe9d7feab567085112ca02b238c839ca1b4cd9c5 (diff) | |
| download | linux-969ae0bfb079de892a95aa4ca1e8ac76c4beb57c.tar.gz linux-969ae0bfb079de892a95aa4ca1e8ac76c4beb57c.tar.bz2 linux-969ae0bfb079de892a95aa4ca1e8ac76c4beb57c.zip | |
x86: get rid of duplicate code in case of CONFIG_VM86
no need to have the call of do_notify_resume() + checks around it
duplicated for vm86 case - a bit of rearranging of ifdefs and we'll
have a perfectly fine copy to jump back to.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/x86/kernel/entry_32.S | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index b6bb69239296..fe4cc305d8da 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -618,6 +618,10 @@ work_notifysig: # deal with pending signals and movl %esp, %eax jne work_notifysig_v86 # returning to kernel-space or # vm86-space +1: +#else + movl %esp, %eax +#endif TRACE_IRQS_ON ENABLE_INTERRUPTS(CLBR_NONE) movb PT_CS(%esp), %bl @@ -628,24 +632,15 @@ work_notifysig: # deal with pending signals and call do_notify_resume jmp resume_userspace +#ifdef CONFIG_VM86 ALIGN work_notifysig_v86: pushl_cfi %ecx # save ti_flags for do_notify_resume call save_v86_state # %eax contains pt_regs pointer popl_cfi %ecx movl %eax, %esp -#else - movl %esp, %eax + jmp 1b #endif - TRACE_IRQS_ON - ENABLE_INTERRUPTS(CLBR_NONE) - movb PT_CS(%esp), %bl - andb $SEGMENT_RPL_MASK, %bl - cmpb $USER_RPL, %bl - jb resume_kernel - xorl %edx, %edx - call do_notify_resume - jmp resume_userspace END(work_pending) # perform syscall exit tracing |