summaryrefslogtreecommitdiffstats
path: root/mm/backing-dev.c
diff options
context:
space:
mode:
authorTejun Heo <tj@kernel.org>2015-05-22 17:13:33 -0400
committerJens Axboe <axboe@fb.com>2015-06-02 08:33:34 -0600
commita212b105b07d75b48b1a166378282e8a77fbf53d (patch)
treea4c44f26ec1986ee4aefdd9c99a7cb99a8d527ca /mm/backing-dev.c
parent66114cad64bf76a155fec1f0fff0de771cf909d5 (diff)
downloadlinux-a212b105b07d75b48b1a166378282e8a77fbf53d.tar.bz2
bdi: make inode_to_bdi() inline
Now that bdi definitions are moved to backing-dev-defs.h, backing-dev.h can include blkdev.h and inline inode_to_bdi() without worrying about introducing circular include dependency. The function gets called from hot paths and fairly trivial. This patch makes inode_to_bdi() and sb_is_blkdev_sb() that the function calls inline. blockdev_superblock and noop_backing_dev_info are EXPORT_GPL'd to allow the inline functions to be used from modules. While at it, make sb_is_blkdev_sb() return bool instead of int. v2: Fixed typo in description as suggested by Jan. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'mm/backing-dev.c')
-rw-r--r--mm/backing-dev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index ff85ecb7d6a1..b0707d1b1d38 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -18,6 +18,7 @@ struct backing_dev_info noop_backing_dev_info = {
.name = "noop",
.capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK,
};
+EXPORT_SYMBOL_GPL(noop_backing_dev_info);
static struct class *bdi_class;