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| author |   Josh Poimboeuf <jpoimboe@redhat.com> | 2017-02-13 19:42:32 -0600 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2017-03-08 09:20:19 +0100 |
| commit | a768f78429fd9b0b07f5795dd62f31a519fc1bae (patch) | |
| tree | 125254b7533a22cbfea7c6df3d689eb294ec3a28 /arch/powerpc/include/asm/thread_info.h | |
| parent | livepatch/x86: add TIF_PATCH_PENDING thread flag (diff) | |
| download | linux-dev-a768f78429fd9b0b07f5795dd62f31a519fc1bae.tar.xz linux-dev-a768f78429fd9b0b07f5795dd62f31a519fc1bae.zip | |
livepatch/powerpc: add TIF_PATCH_PENDING thread flag
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 <jpoimboe@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'arch/powerpc/include/asm/thread_info.h')
| -rw-r--r-- | arch/powerpc/include/asm/thread_info.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index 87e4b2d8dcd4..6fc6464f7421 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<<TIF_POLLING_NRFLAG) #define _TIF_32BIT (1<<TIF_32BIT) #define _TIF_RESTORE_TM (1<<TIF_RESTORE_TM) +#define _TIF_PATCH_PENDING (1<<TIF_PATCH_PENDING) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) #define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) #define _TIF_SECCOMP (1<<TIF_SECCOMP) @@ -131,7 +133,7 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ _TIF_NOTIFY_RESUME | _TIF_UPROBE | \ - _TIF_RESTORE_TM) + _TIF_RESTORE_TM | _TIF_PATCH_PENDING) #define _TIF_PERSYSCALL_MASK (_TIF_RESTOREALL|_TIF_NOERROR) /* Bits in local_flags */ |