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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-04-24 02:37:07 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-05-21 14:19:53 -0400 |
| commit | d50349b0c397407458ea8c57aee765d158e6f9ee (patch) | |
| tree | 4ba282ac4385194f8812ceae81237e6dd28274a9 | |
| parent | 3b7d15bde54be81e3edd773724d85d20ae42a4da (diff) | |
| download | lwn-d50349b0c397407458ea8c57aee765d158e6f9ee.tar.gz lwn-d50349b0c397407458ea8c57aee765d158e6f9ee.zip | |
um: add TIF_NOTIFY_RESUME
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/um/include/asm/thread_info.h | 1 | ||||
| -rw-r--r-- | arch/um/kernel/process.c | 8 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h index 200c4ab1240c..6d85ebb860fd 100644 --- a/arch/um/include/asm/thread_info.h +++ b/arch/um/include/asm/thread_info.h @@ -71,6 +71,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_MEMDIE 5 /* is terminating due to OOM killer */ #define TIF_SYSCALL_AUDIT 6 #define TIF_RESTORE_SIGMASK 7 +#define TIF_NOTIFY_RESUME 8 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 2b73dedb44ca..4d9af3172d9f 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -18,6 +18,7 @@ #include <linux/seq_file.h> #include <linux/tick.h> #include <linux/threads.h> +#include <linux/tracehook.h> #include <asm/current.h> #include <asm/pgtable.h> #include <asm/mmu_context.h> @@ -114,8 +115,13 @@ void interrupt_end(void) { if (need_resched()) schedule(); - if (test_tsk_thread_flag(current, TIF_SIGPENDING)) + if (test_thread_flag(TIF_SIGPENDING)) do_signal(); + if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME)) { + tracehook_notify_resume(¤t->thread.regs); + if (current->replacement_session_keyring) + key_replace_session_keyring(); + } } void exit_thread(void) |