block: rename blk-barrier.c to blk-flush.c

Without ordering requirements, barrier and ordering are minomers.
Rename block/blk-barrier.c to block/blk-flush.c.  Rename of symbols
will follow.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

2 files changed, 1 insertions, 1 deletions

diff --git a/block/Makefile b/block/Makefile
index 0bb499a739cd..f627e4b1a9da 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-$(CONFIG_BLOCK) := elevator.o blk-core.o blk-tag.o blk-sysfs.o \
-                        blk-barrier.o blk-settings.o blk-ioc.o blk-map.o \
+                        blk-flush.o blk-settings.o blk-ioc.o blk-map.o \
                         blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \
                         blk-iopoll.o blk-lib.o ioctl.o genhd.o scsi_ioctl.o
 
diff --git a/block/blk-barrier.c b/block/blk-flush.c
index e8b2e5c091b1..e8b2e5c091b1 100644
--- a/block/blk-barrier.c
+++ b/block/blk-flush.c