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authorTejun Heo2015-05-22 17:13:32 -0400
committerJens Axboe2015-06-02 08:33:34 -0600
commit66114cad64bf76a155fec1f0fff0de771cf909d5 (patch)
tree58d7b8646add87cb40973961757a1c3598f3ee4c /mm/madvise.c
parent4610007142823307d930ac890d822633a05ce08c (diff)
writeback: separate out include/linux/backing-dev-defs.h
With the planned cgroup writeback support, backing-dev related declarations will be more widely used across block and cgroup; unfortunately, including backing-dev.h from include/linux/blkdev.h makes cyclic include dependency quite likely. This patch separates out backing-dev-defs.h which only has the essential definitions and updates blkdev.h to include it. c files which need access to more backing-dev details now include backing-dev.h directly. This takes backing-dev.h off the common include dependency chain making it a lot easier to use it across block and cgroup. v2: fs/fat build failure fixed. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'mm/madvise.c')
-rw-r--r--mm/madvise.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/madvise.c b/mm/madvise.c
index d551475517bf..64bb8a22110c 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -17,6 +17,7 @@
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include <linux/swap.h>
#include <linux/swapops.h>