Re: [PATCH v3 05/15] livepatch/powerpc: add TIF_PATCH_PENDING thread flag

2017-01-10 Thread Kamalesh Babulal 

On Thursday 08 December 2016 11:38 PM, Josh Poimboeuf wrote:

Add the TIF_PATCH_PENDING thread flag to enable the new livepatch
per-task consistency model for powerpc.  The bit getting set indicates
the thread has a pending patch which needs to be applied when the thread
exits the kernel.

The bit is included in the _TIF_USER_WORK_MASK macro so that
do_notify_resume() and klp_update_patch_state() get called when the bit
is set.

Signed-off-by: Josh Poimboeuf 


Reviewed-by: Kamalesh Babulal 

--
cheers,
Kamalesh.

Re: [PATCH v3 05/15] livepatch/powerpc: add TIF_PATCH_PENDING thread flag

2016-12-21 Thread Miroslav Benes 
On Thu, 8 Dec 2016, Josh Poimboeuf wrote:

> Add the TIF_PATCH_PENDING thread flag to enable the new livepatch
> per-task consistency model for powerpc.  The bit getting set indicates
> the thread has a pending patch which needs to be applied when the thread
> exits the kernel.
> 
> The bit is included in the _TIF_USER_WORK_MASK macro so that
> do_notify_resume() and klp_update_patch_state() get called when the bit
> is set.
> 
> Signed-off-by: Josh Poimboeuf 

Looks good to me. You can add my

Reviewed-by: Miroslav Benes 

Miroslav

Re: [PATCH v3 05/15] livepatch/powerpc: add TIF_PATCH_PENDING thread flag

2016-12-16 Thread Petr Mladek 
On Thu 2016-12-08 12:08:30, Josh Poimboeuf wrote:
> Add the TIF_PATCH_PENDING thread flag to enable the new livepatch
> per-task consistency model for powerpc.  The bit getting set indicates
> the thread has a pending patch which needs to be applied when the thread
> exits the kernel.
> 
> The bit is included in the _TIF_USER_WORK_MASK macro so that
> do_notify_resume() and klp_update_patch_state() get called when the bit
> is set.
> 
> Signed-off-by: Josh Poimboeuf 

Reviewed-by: Petr Mladek 

Best Regards,
Petr

[PATCH v3 05/15] livepatch/powerpc: add TIF_PATCH_PENDING thread flag

2016-12-08 Thread Josh Poimboeuf 
Add the TIF_PATCH_PENDING thread flag to enable the new livepatch
per-task consistency model for powerpc.  The bit getting set indicates
the thread has a pending patch which needs to be applied when the thread
exits the kernel.

The bit is included in the _TIF_USER_WORK_MASK macro so that
do_notify_resume() and klp_update_patch_state() get called when the bit
is set.

Signed-off-by: Josh Poimboeuf 
---
 arch/powerpc/include/asm/thread_info.h | 4 +++-
 arch/powerpc/kernel/signal.c   | 4 
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/thread_info.h 
b/arch/powerpc/include/asm/thread_info.h
index 87e4b2d..6fc6464 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -92,6 +92,7 @@ static inline struct thread_info *current_thread_info(void)
   TIF_NEED_RESCHED */
 #define TIF_32BIT  4   /* 32 bit binary */
 #define TIF_RESTORE_TM 5   /* need to restore TM FP/VEC/VSX */
+#define TIF_PATCH_PENDING  6   /* pending live patching update */
 #define TIF_SYSCALL_AUDIT  7   /* syscall auditing active */
 #define TIF_SINGLESTEP 8   /* singlestepping active */
 #define TIF_NOHZ   9   /* in adaptive nohz mode */
@@ -115,6 +116,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_POLLING_NRFLAG(1<