Fix warnings with !CONFIG_BLOCK
Hide everything in blkdev.h with CONFIG_BLOCK isn't set, and fixup
the (few) files that fail to build because they were relying on blkdev.h
pulling in extra includes for them.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index a4b142a..8d23b0b 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -14,6 +14,7 @@
*/
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/fs.h>
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 492ac94..a0a9981 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1,6 +1,8 @@
#ifndef _LINUX_BLKDEV_H
#define _LINUX_BLKDEV_H
+#ifdef CONFIG_BLOCK
+
#include <linux/sched.h>
#include <linux/major.h>
#include <linux/genhd.h>
@@ -32,8 +34,6 @@
)
#endif
-#ifdef CONFIG_BLOCK
-
struct scsi_ioctl_command;
struct request_queue;
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index b4af6bc..c7c3337 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -5,6 +5,7 @@
#define WRITEBACK_H
#include <linux/sched.h>
+#include <linux/fs.h>
struct backing_dev_info;
diff --git a/kernel/sched.c b/kernel/sched.c
index 6107a0c..6c10fa7 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -61,6 +61,7 @@
#include <linux/delayacct.h>
#include <linux/reciprocal_div.h>
#include <linux/unistd.h>
+#include <linux/pagemap.h>
#include <asm/tlb.h>
diff --git a/mm/readahead.c b/mm/readahead.c
index 39bf45d..be20c9d 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -15,6 +15,7 @@
#include <linux/backing-dev.h>
#include <linux/task_io_accounting_ops.h>
#include <linux/pagevec.h>
+#include <linux/pagemap.h>
void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page)
{