X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=kernel%2Fptrace.c;h=7a81fc0713442590c6643e411c77da127bc2520e;hb=3ed4c0583daa34dedb568b26ff99e5a7b58db612;hp=512bd017218dd54a555305ceb37fc921c6a85faa;hpb=bd715d9a4f13f87bad5526c2cd41370949473b16;p=karo-tx-linux.git

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 512bd017218d..7a81fc071344 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -22,6 +22,7 @@
 #include <linux/syscalls.h>
 #include <linux/uaccess.h>
 #include <linux/regset.h>
+#include <linux/hw_breakpoint.h>
 
 
 /*
@@ -923,3 +924,19 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
 	return ret;
 }
 #endif	/* CONFIG_COMPAT */
+
+#ifdef CONFIG_HAVE_HW_BREAKPOINT
+int ptrace_get_breakpoints(struct task_struct *tsk)
+{
+	if (atomic_inc_not_zero(&tsk->ptrace_bp_refcnt))
+		return 0;
+
+	return -1;
+}
+
+void ptrace_put_breakpoints(struct task_struct *tsk)
+{
+	if (atomic_dec_and_test(&tsk->ptrace_bp_refcnt))
+		flush_ptrace_hw_breakpoint(tsk);
+}
+#endif /* CONFIG_HAVE_HW_BREAKPOINT */