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mm: implement writeback livelock avoidance using page tagging
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
include
/
linux
/
fs.h
diff --git
a/include/linux/fs.h
b/include/linux/fs.h
index
e5106e4
..
488efec
100644
(file)
--- a/
include/linux/fs.h
+++ b/
include/linux/fs.h
@@
-687,6
+687,7
@@
struct block_device {
*/
#define PAGECACHE_TAG_DIRTY 0
#define PAGECACHE_TAG_WRITEBACK 1
+#define PAGECACHE_TAG_TOWRITE 2
int mapping_tagged(struct address_space *mapping, int tag);