x86: kill TIF_DEBUG

Because it is not used.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Prasad <prasad@linux.vnet.ibm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index a1df6e8..2781119 100644 (file)
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -89,7 +89,6 @@ struct thread_info {
 #define TIF_FORK               18      /* ret_from_fork */
 #define TIF_NOHZ               19      /* in adaptive nohz mode */
 #define TIF_MEMDIE             20      /* is terminating due to OOM killer */
-#define TIF_DEBUG              21      /* uses debug registers */
 #define TIF_IO_BITMAP          22      /* uses I/O bitmap */
 #define TIF_FORCED_TF          24      /* true if TF in eflags artificially */
 #define TIF_BLOCKSTEP          25      /* set when we want DEBUGCTLMSR_BTF */
@@ -113,7 +112,6 @@ struct thread_info {
 #define _TIF_IA32              (1 << TIF_IA32)
 #define _TIF_FORK              (1 << TIF_FORK)
 #define _TIF_NOHZ              (1 << TIF_NOHZ)
-#define _TIF_DEBUG             (1 << TIF_DEBUG)
 #define _TIF_IO_BITMAP         (1 << TIF_IO_BITMAP)
 #define _TIF_FORCED_TF         (1 << TIF_FORCED_TF)
 #define _TIF_BLOCKSTEP         (1 << TIF_BLOCKSTEP)
@@ -154,7 +152,7 @@ struct thread_info {
        (_TIF_IO_BITMAP|_TIF_NOTSC|_TIF_BLOCKSTEP)
 
 #define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
-#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW|_TIF_DEBUG)
+#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
 
 #define PREEMPT_ACTIVE         0x10000000