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| author | Gabriel Krisman Bertazi <krisman@collabora.com> | 2020-11-16 12:42:02 -0500 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-11-16 21:53:16 +0100 |
| commit | 64c19ba29b66e98af9306b4a7525fb22c895d252 (patch) | |
| tree | e0cfa090f940f33e7bde807308506a14852b8dde /kernel/ptrace.c | |
| parent | 524666cb5de7c38a1925e7401a6e59d68682dd8c (diff) | |
| download | linux-stable-64c19ba29b66e98af9306b4a7525fb22c895d252.tar.gz linux-stable-64c19ba29b66e98af9306b4a7525fb22c895d252.tar.bz2 linux-stable-64c19ba29b66e98af9306b4a7525fb22c895d252.zip | |
ptrace: Migrate to use SYSCALL_TRACE flag
On architectures using the generic syscall entry code the architecture
independent syscall work is moved to flags in thread_info::syscall_work.
This removes architecture dependencies and frees up TIF bits.
Define SYSCALL_WORK_SYSCALL_TRACE, use it in the generic entry code and
convert the code which uses the TIF specific helper functions to use the
new *_syscall_work() helpers which either resolve to the new mode for users
of the generic entry code or to the TIF based functions for the other
architectures.
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20201116174206.2639648-7-krisman@collabora.com
Diffstat (limited to 'kernel/ptrace.c')
| -rw-r--r-- | kernel/ptrace.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 43d6179508d6..55a2bc3186a7 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -117,7 +117,7 @@ void __ptrace_unlink(struct task_struct *child) const struct cred *old_cred; BUG_ON(!child->ptrace); - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + clear_task_syscall_work(child, SYSCALL_TRACE); #ifdef TIF_SYSCALL_EMU clear_tsk_thread_flag(child, TIF_SYSCALL_EMU); #endif @@ -812,9 +812,9 @@ static int ptrace_resume(struct task_struct *child, long request, return -EIO; if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + set_task_syscall_work(child, SYSCALL_TRACE); else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + clear_task_syscall_work(child, SYSCALL_TRACE); #ifdef TIF_SYSCALL_EMU if (request == PTRACE_SYSEMU || request == PTRACE_SYSEMU_SINGLESTEP) |