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authorGabriel Krisman Bertazi <krisman@collabora.com>2020-11-16 12:42:02 -0500
committerThomas Gleixner <tglx@linutronix.de>2020-11-16 21:53:16 +0100
commit64c19ba29b66e98af9306b4a7525fb22c895d252 (patch)
treee0cfa090f940f33e7bde807308506a14852b8dde /kernel/ptrace.c
parent524666cb5de7c38a1925e7401a6e59d68682dd8c (diff)
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.c6
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)