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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-08-02 22:12:06 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-09-20 17:50:17 +0400 |
| commit | e76623d69408d0bd66a296c6ee5eae1b17a6adfc (patch) | |
| tree | 91011050463a05f2950ccf12a1c2a7287bbae1a5 /arch/x86/kernel/vm86_32.c | |
| parent | c46de2263f42fb4bbde411b9126f471e9343cb22 (diff) | |
| download | linux-e76623d69408d0bd66a296c6ee5eae1b17a6adfc.tar.xz | |
x86: get rid of TIF_IRET hackery
TIF_NOTIFY_RESUME will work in precisely the same way; all that
is achieved by TIF_IRET is appearing that there's some work to be
done, so we end up on the iret exit path. Just use NOTIFY_RESUME.
And for execve() do that in 32bit start_thread(), not sys_execve()
itself.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/x86/kernel/vm86_32.c')
| -rw-r--r-- | arch/x86/kernel/vm86_32.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c index 54abcc0baf23..5c9687b1bde6 100644 --- a/arch/x86/kernel/vm86_32.c +++ b/arch/x86/kernel/vm86_32.c @@ -561,9 +561,9 @@ int handle_vm86_trap(struct kernel_vm86_regs *regs, long error_code, int trapno) if ((trapno == 3) || (trapno == 1)) { KVM86->regs32->ax = VM86_TRAP + (trapno << 8); /* setting this flag forces the code in entry_32.S to - call save_v86_state() and change the stack pointer - to KVM86->regs32 */ - set_thread_flag(TIF_IRET); + the path where we call save_v86_state() and change + the stack pointer to KVM86->regs32 */ + set_thread_flag(TIF_NOTIFY_RESUME); return 0; } do_int(regs, trapno, (unsigned char __user *) (regs->pt.ss << 4), SP(regs)); |