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| author | Christoph Hellwig <hch@lst.de> | 2021-09-20 14:33:14 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 14:17:01 +0200 |
| commit | ccdf774189b6466457ca9c7de1fe9ed18547d249 (patch) | |
| tree | a57ef7145a7cc6f92358b3a13451fe8a0edfa8fb /mm | |
| parent | mm: don't include <linux/blk-cgroup.h> in <linux/backing-dev.h> (diff) | |
| download | linux-ccdf774189b6466457ca9c7de1fe9ed18547d249.tar.xz linux-ccdf774189b6466457ca9c7de1fe9ed18547d249.zip | |
mm: don't include <linux/blkdev.h> in <linux/backing-dev.h>
Move inode_to_bdi out of line to avoid having to include blkdev.h.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210920123328.1399408-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/backing-dev.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 5245744437dc..c878d995af06 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -978,6 +978,22 @@ void bdi_put(struct backing_dev_info *bdi) } EXPORT_SYMBOL(bdi_put); +struct backing_dev_info *inode_to_bdi(struct inode *inode) +{ + struct super_block *sb; + + if (!inode) + return &noop_backing_dev_info; + + sb = inode->i_sb; +#ifdef CONFIG_BLOCK + if (sb_is_blkdev_sb(sb)) + return I_BDEV(inode)->bd_disk->bdi; +#endif + return sb->s_bdi; +} +EXPORT_SYMBOL(inode_to_bdi); + const char *bdi_dev_name(struct backing_dev_info *bdi) { if (!bdi || !bdi->dev) |