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authorHugh Dickins <hughd@google.com>2017-09-03 18:57:03 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-01-05 15:46:32 +0100
commit0994a2cf8fe4e884bad4810681117a7d0096c8e7 (patch)
tree524d647d9dc1bde3133cd09aca758e76792aad53 /init
parentac2f1018ac210cfedcfab82dbafbda4e2db7ed08 (diff)
kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE
Kaiser only needs to map one page of the stack; and kernel/fork.c did not build on powerpc (no __PAGE_KERNEL). It's all cleaner if linux/kaiser.h provides kaiser_map_thread_stack() and kaiser_unmap_thread_stack() wrappers around asm/kaiser.h's kaiser_add_mapping() and kaiser_remove_mapping(). And use linux/kaiser.h in init/main.c to avoid the #ifdefs there. Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/main.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/init/main.c b/init/main.c
index 2c009f77e655..99f026565608 100644
--- a/init/main.c
+++ b/init/main.c
@@ -80,15 +80,13 @@
#include <linux/integrity.h>
#include <linux/proc_ns.h>
#include <linux/io.h>
+#include <linux/kaiser.h>
#include <asm/io.h>
#include <asm/bugs.h>
#include <asm/setup.h>
#include <asm/sections.h>
#include <asm/cacheflush.h>
-#ifdef CONFIG_KAISER
-#include <asm/kaiser.h>
-#endif
static int kernel_init(void *);
@@ -476,9 +474,7 @@ static void __init mm_init(void)
pgtable_init();
vmalloc_init();
ioremap_huge_init();
-#ifdef CONFIG_KAISER
kaiser_init();
-#endif
}
asmlinkage __visible void __init start_kernel(void)