MIPS: Implement HAVE_CONTEXT_TRACKING.

This enables support for CONFIG_NO_HZ_FULL.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index 203d8857070d..3eaa02aa8ae0 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -72,6 +72,7 @@
  *       A store crossing a page boundary might be executed only partially.
  *       Undo the partial store in this case.
  */
+#include <linux/context_tracking.h>
 #include <linux/mm.h>
 #include <linux/signal.h>
 #include <linux/smp.h>
@@ -1550,9 +1551,11 @@ sigill:
 }
 asmlinkage void do_ade(struct pt_regs *regs)
 {
+        enum ctx_state prev_state;
         unsigned int __user *pc;
         mm_segment_t seg;
 
+        prev_state = exception_enter();
         perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,
                         1, regs, regs->cp0_badvaddr);
         /*
@@ -1628,6 +1631,7 @@ sigbus:
         /*
          * XXX On return from the signal handler we should advance the epc
          */
+        exception_exit(prev_state);
 }
 
 #ifdef CONFIG_DEBUG_FS