The patch titled
frv: utrace: implement TIF_NOTIFY_RESUME
has been added to the -mm tree. Its filename is
frv-utrace-implement-tif_notify_resume.patch
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------------------------------------------------------
Subject: frv: utrace: implement TIF_NOTIFY_RESUME
From: David Howells <dhowells@xxxxxxxxxx>
Implement the TIF_NOTIFY_RESUME thread flag, making it call
do_notify_resume() which then clears it. This will be added to later by
utrace.
Also discard TIF_IRET as that's not used by FRV.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Cc: Roland McGrath <roland@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/frv/include/asm/thread_info.h | 10 +++++-----
arch/frv/kernel/signal.c | 5 +++++
2 files changed, 10 insertions(+), 5 deletions(-)
diff -puN arch/frv/include/asm/thread_info.h~frv-utrace-implement-tif_notify_resume arch/frv/include/asm/thread_info.h
--- a/arch/frv/include/asm/thread_info.h~frv-utrace-implement-tif_notify_resume
+++ a/arch/frv/include/asm/thread_info.h
@@ -109,20 +109,20 @@ register struct thread_info *__current_t
* - other flags in MSW
*/
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
-#define TIF_SIGPENDING 1 /* signal pending */
-#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
-#define TIF_SINGLESTEP 3 /* restore singlestep on return to user mode */
-#define TIF_IRET 4 /* return with iret */
+#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
+#define TIF_SIGPENDING 2 /* signal pending */
+#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
+#define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17 /* OOM killer killed process */
#define TIF_FREEZE 18 /* freezing for suspend */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
-#define _TIF_IRET (1 << TIF_IRET)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_FREEZE (1 << TIF_FREEZE)
diff -puN arch/frv/kernel/signal.c~frv-utrace-implement-tif_notify_resume arch/frv/kernel/signal.c
--- a/arch/frv/kernel/signal.c~frv-utrace-implement-tif_notify_resume
+++ a/arch/frv/kernel/signal.c
@@ -564,4 +564,9 @@ asmlinkage void do_notify_resume(__u32 t
if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
do_signal();
+ /* deal with notification on about to resume userspace execution */
+ if (thread_info_flags & _TIF_NOTIFY_RESUME) {
+ clear_thread_flag(TIF_NOTIFY_RESUME);
+ }
+
} /* end do_notify_resume() */
_
Patches currently in -mm which might be from dhowells@xxxxxxxxxx are
origin.patch
rxrpc-fix-error-handling-for-rxrpc_alloc_connection.patch
frv-utrace-remove-in-kernel-strace-code.patch
frv-utrace-implement-tif_notify_resume.patch
frv-dont-turn-on-tif_syscall_trace-unconditionally-in-syscall-prologue.patch
frv-utrace-implement-tracehooks.patch
frv-duplicate-output_buffer-of-e03.patch
slow_work_thread-should-do-the-exclusive-wait.patch
rework-fix-is_single_threaded.patch
kmap_types-make-most-arches-use-generic-header-file.patch
flat-fix-data-sections-alignment.patch
ptrace-remove-pt_dtrace-from-avr32-mn10300-parisc-s390-sh-xtensa.patch
mutex-subsystem-synchro-test-module.patch
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