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Diffstat (limited to 'arch/arm64/kernel/process.c')
-rw-r--r--arch/arm64/kernel/process.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index ae2a835898d7..659ae8094ed5 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -210,6 +210,7 @@ void __show_regs(struct pt_regs *regs)
void show_regs(struct pt_regs * regs)
{
__show_regs(regs);
+ dump_backtrace(regs, NULL);
}
static void tls_thread_flush(void)
@@ -297,12 +298,16 @@ int copy_thread(unsigned long clone_flags, unsigned long stack_start,
return 0;
}
+void tls_preserve_current_state(void)
+{
+ *task_user_tls(current) = read_sysreg(tpidr_el0);
+}
+
static void tls_thread_switch(struct task_struct *next)
{
unsigned long tpidr, tpidrro;
- tpidr = read_sysreg(tpidr_el0);
- *task_user_tls(current) = tpidr;
+ tls_preserve_current_state();
tpidr = *task_user_tls(next);
tpidrro = is_compat_thread(task_thread_info(next)) ?