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| author | Tejun Heo <tj@kernel.org> | 2015-05-22 17:13:33 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-06-02 08:33:34 -0600 |
| commit | a212b105b07d75b48b1a166378282e8a77fbf53d (patch) | |
| tree | a4c44f26ec1986ee4aefdd9c99a7cb99a8d527ca /mm/backing-dev.c | |
| parent | 66114cad64bf76a155fec1f0fff0de771cf909d5 (diff) | |
| download | lwn-a212b105b07d75b48b1a166378282e8a77fbf53d.tar.gz lwn-a212b105b07d75b48b1a166378282e8a77fbf53d.zip | |
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.c | 1 |
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; |