Commit 805e8c03 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
Browse files

[PATCH] x86_64: Clean up execve path 



Just call IRET always, no need for any special cases.

Needed for the next bug fix.

Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 903fcc60

arch/x86_64/kernel/entry.S

+0 −16
Original line number Diff line number Diff line
@@ -408,25 +408,9 @@ ENTRY(stub_execve) 
	CFI_ADJUST_CFA_OFFSET -8

	CFI_REGISTER rip, r11

	SAVE_REST

	movq %r11, %r15

	CFI_REGISTER rip, r15

	FIXUP_TOP_OF_STACK %r11

	call sys_execve

	GET_THREAD_INFO(%rcx)

	bt $TIF_IA32,threadinfo_flags(%rcx)

	CFI_REMEMBER_STATE

	jc exec_32bit

	RESTORE_TOP_OF_STACK %r11

	movq %r15, %r11

	CFI_REGISTER rip, r11

	RESTORE_REST

	pushq %r11

	CFI_ADJUST_CFA_OFFSET 8

	CFI_REL_OFFSET rip, 0

	ret



exec_32bit:

	CFI_RESTORE_STATE

	movq %rax,RAX(%rsp)

	RESTORE_REST

	jmp int_ret_from_sys_call