block: blkdev.h cleanup, move iocontext stuff to iocontext.h

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

4 files changed, 20 insertions, 17 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4a9ed45270ff..443df75d2cde 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -33,12 +33,6 @@ struct sg_io_hdr;
 #define BLKDEV_MIN_RQ   4
 #define BLKDEV_MAX_RQ   128     /* Default maximum */
 
-int put_io_context(struct io_context *ioc);
-void exit_io_context(void);
-struct io_context *get_io_context(gfp_t gfp_flags, int node);
-struct io_context *alloc_io_context(gfp_t gfp_flags, int node);
-void copy_io_context(struct io_context **pdst, struct io_context **psrc);
-
 struct request;
 typedef void (rq_end_io_fn)(struct request *, int);
 
@@ -981,17 +975,6 @@ static inline long nr_blockdev_pages(void)
         return 0;
 }
 
-static inline void exit_io_context(void)
-{
-}
-
-struct io_context;
-static inline int put_io_context(struct io_context *ioc)
-{
-        return 1;
-}
-
-
 #endif /* CONFIG_BLOCK */
 
 #endif
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index 2b7a1187cb29..08b987bccf89 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -99,4 +99,22 @@ static inline struct io_context *ioc_task_link(struct io_context *ioc)
         return NULL;
 }
 
+#ifdef CONFIG_BLOCK
+int put_io_context(struct io_context *ioc);
+void exit_io_context(void);
+struct io_context *get_io_context(gfp_t gfp_flags, int node);
+struct io_context *alloc_io_context(gfp_t gfp_flags, int node);
+void copy_io_context(struct io_context **pdst, struct io_context **psrc);
+#else
+static inline void exit_io_context(void)
+{
+}
+
+struct io_context;
+static inline int put_io_context(struct io_context *ioc)
+{
+        return 1;
+}
+#endif
+
 #endif
diff --git a/kernel/exit.c b/kernel/exit.c
index 8f6185e69b69..ceb258782835 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -13,6 +13,7 @@
 #include <linux/personality.h>
 #include <linux/tty.h>
 #include <linux/mnt_namespace.h>
+#include <linux/iocontext.h>
 #include <linux/key.h>
 #include <linux/security.h>
 #include <linux/cpu.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 19908b26cf80..b71ccd09fc8d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -23,6 +23,7 @@
 #include <linux/sem.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
+#include <linux/iocontext.h>
 #include <linux/key.h>
 #include <linux/binfmts.h>
 #include <linux/mman.h>