commit c395465da68bfc3a238d5bc15f862e33e6e9ecec
author Michael Neuling <mikey@neuling.org> Wed Oct 28 15:54:06 2015 +1100
committer Michael Ellerman <mpe@ellerman.id.au> Sat Dec 19 22:13:12 2015 +1100
tree 0d337e9be2ae4a34b8ccd9314c5265499746ff33
parent 1b855e167b90fcb353977c08932d0a52eb8ae5b9

powerpc: Add function to copy mm_context_t to the paca

This adds a function to copy the mm->context to the paca.  This is
only a basic conversion for now but will be used more extensively in
the next patch.

This also adds #ifdef CONFIG_PPC_BOOK3S around this code since it's
not used elsewhere.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/mm/slice.c

diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 0f432a7..42954f0 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -185,8 +185,7 @@
 	if (mm != current->active_mm)
 		return;
 
-	/* update the paca copy of the context struct */
-	get_paca()->context = current->active_mm->context;
+	copy_mm_to_paca(&current->active_mm->context);
 
 	local_irq_save(flags);
 	slb_flush_and_rebolt();