We need number of pagecache tags in later patches, this patch prepares it.
Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
---
include/linux/fs.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git v3.15-rc7.orig/include/linux/fs.h v3.15-rc7/include/linux/fs.h
index 878031227c57..5b489df9d964 100644
--- v3.15-rc7.orig/include/linux/fs.h
+++ v3.15-rc7/include/linux/fs.h
@@ -447,9 +447,12 @@ struct block_device {
* Radix-tree tags, for tagging dirty and writeback pages within the pagecache
* radix trees
*/
-#define PAGECACHE_TAG_DIRTY 0
-#define PAGECACHE_TAG_WRITEBACK 1
-#define PAGECACHE_TAG_TOWRITE 2
+enum {
+ PAGECACHE_TAG_DIRTY,
+ PAGECACHE_TAG_WRITEBACK,
+ PAGECACHE_TAG_TOWRITE,
+ __NR_PAGECACHE_TAGS,
+};
int mapping_tagged(struct address_space *mapping, int tag);
--
1.9.3
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