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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-04-24 01:46:23 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-21 23:59:47 -0400 |
| commit | a54f1655be4cb103a6729adcc9ca914c5fdf1ca0 (patch) | |
| tree | a54cfff27d2fb3b9d04daa3490a7e601df586c18 /arch/m68k/include | |
| parent | 899dfaa7e7dd825f8366c2a6b38067db43644dc6 (diff) | |
| download | linux-a54f1655be4cb103a6729adcc9ca914c5fdf1ca0.tar.bz2 | |
m68k: add TIF_NOTIFY_RESUME and handle it.
TIF_NOTIFY_RESUME added (as bit 5). That way nommu glue needs no changes at
all; mmu one needs just to replace jmi do_signal_return to jne do_signal_return
There we have flags shifted up, until bit 6 (SIGPENDING) is in MSBit; instead
of checking that MSBit is set (jmi) we check that MSBit or something below it
is set (jne); bits 0..4 are never set, so that's precisely "bit 6 or bit 5 is
set".
Usual handling of NOTIFY_RESUME/SIGPENDING is done in do_notify_resume(); glue
calls it instead of do_signal().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/m68k/include')
| -rw-r--r-- | arch/m68k/include/asm/thread_info.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h index e8665e6f9464..126131f94a2c 100644 --- a/arch/m68k/include/asm/thread_info.h +++ b/arch/m68k/include/asm/thread_info.h @@ -71,6 +71,7 @@ static inline struct thread_info *current_thread_info(void) * bits 0-7 are tested at every exception exit * bits 8-15 are also tested at syscall exit */ +#define TIF_NOTIFY_RESUME 5 /* callback before returning to user */ #define TIF_SIGPENDING 6 /* signal pending */ #define TIF_NEED_RESCHED 7 /* rescheduling necessary */ #define TIF_DELAYED_TRACE 14 /* single step a syscall */ |