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authorChristoph Hellwig <hch@lst.de>2016-11-01 07:40:16 -0600
committerJens Axboe <axboe@fb.com>2016-11-01 09:43:26 -0600
commitbe297968da22cf40c9c419df51e71ba8856a2ec2 (patch)
tree2aff842b99f54ff0c920f6fca1d53c531975240e /include/linux/swap.h
parent9f08217120568afdfb59973a89a675e649c0096d (diff)
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mm: only include blk_types in swap.h if CONFIG_SWAP is enabled
It's only needed for the CONFIG_SWAP-only use of bio_end_io_t. Because CONFIG_SWAP implies CONFIG_BLOCK this will allow to drop some ifdefs in blk_types.h. Instead we'll need to add a few explicit includes that were implicit before, though. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/swap.h')
-rw-r--r--include/linux/swap.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 3a6aebc23001..bfee1af1f54f 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -11,7 +11,6 @@
#include <linux/fs.h>
#include <linux/atomic.h>
#include <linux/page-flags.h>
-#include <linux/blk_types.h>
#include <asm/page.h>
struct notifier_block;
@@ -352,6 +351,9 @@ extern int kswapd_run(int nid);
extern void kswapd_stop(int nid);
#ifdef CONFIG_SWAP
+
+#include <linux/blk_types.h> /* for bio_end_io_t */
+
/* linux/mm/page_io.c */
extern int swap_readpage(struct page *);
extern int swap_writepage(struct page *page, struct writeback_control *wbc);