redo: radix tree test suite: fix compilation

[ This resurrects commit 53855d10f456, which was reverted in
  2b41226b39b6.  It depended on commit d544abd5ff7d ("lib/radix-tree:
  Convert to hotplug state machine") so now it is correct to apply ]

Patch "lib/radix-tree: Convert to hotplug state machine" breaks the test
suite as it adds a call to cpuhp_setup_state_nocalls() which is not
currently emulated in the test suite.  Add it, and delete the emulation
of the old CPU hotplug mechanism.

Link: http://lkml.kernel.org/r/1480369871-5271-36-git-send-email-mawilcox@linuxonhyperv.com
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 0019aca0f3283820736ecc4408ff93a9ed798b21..6f382e07de77e2f543389c57e52f48a1f5d026ad 100644 (file)
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -31,7 +31,6 @@
 #include <linux/percpu.h>
 #include <linux/slab.h>
 #include <linux/kmemleak.h>
-#include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/string.h>
 #include <linux/bitops.h>

diff --git a/tools/testing/radix-tree/linux/cpu.h b/tools/testing/radix-tree/linux/cpu.h
index 7cf412103205b1f49b29350fdd93d4f496307e16..a45530d7810748c41f5458cc8e70244efead808c 100644 (file)
--- a/tools/testing/radix-tree/linux/cpu.h
+++ b/tools/testing/radix-tree/linux/cpu.h
@@ -1,21 +1 @@
-
-#define hotcpu_notifier(a, b)
-
-#define CPU_ONLINE             0x0002 /* CPU (unsigned)v is up */
-#define CPU_UP_PREPARE         0x0003 /* CPU (unsigned)v coming up */
-#define CPU_UP_CANCELED                0x0004 /* CPU (unsigned)v NOT coming up */
-#define CPU_DOWN_PREPARE       0x0005 /* CPU (unsigned)v going down */
-#define CPU_DOWN_FAILED                0x0006 /* CPU (unsigned)v NOT going down */
-#define CPU_DEAD               0x0007 /* CPU (unsigned)v dead */
-#define CPU_POST_DEAD          0x0009 /* CPU (unsigned)v dead, cpu_hotplug
-                                       * lock is dropped */
-#define CPU_BROKEN             0x000C /* CPU (unsigned)v did not die properly,
-                                       * perhaps due to preemption. */
-#define CPU_TASKS_FROZEN       0x0010
-
-#define CPU_ONLINE_FROZEN      (CPU_ONLINE | CPU_TASKS_FROZEN)
-#define CPU_UP_PREPARE_FROZEN  (CPU_UP_PREPARE | CPU_TASKS_FROZEN)
-#define CPU_UP_CANCELED_FROZEN  (CPU_UP_CANCELED | CPU_TASKS_FROZEN)
-#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
-#define CPU_DOWN_FAILED_FROZEN  (CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
-#define CPU_DEAD_FROZEN                (CPU_DEAD | CPU_TASKS_FROZEN)
+#define cpuhp_setup_state_nocalls(a, b, c, d)  (0)

diff --git a/tools/testing/radix-tree/linux/notifier.h b/tools/testing/radix-tree/linux/notifier.h
deleted file mode 100644 (file)
index 70e4797..0000000
--- a/tools/testing/radix-tree/linux/notifier.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _NOTIFIER_H
-#define _NOTIFIER_H
-
-struct notifier_block;
-
-#define NOTIFY_OK              0x0001          /* Suits me */
-
-#endif