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| author | Dan Williams <dan.j.williams@intel.com> | 2016-01-10 07:53:55 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-01-10 07:53:55 -0800 |
| commit | 8b63b6bfc1a551acf154061699028c7032d7890c (patch) | |
| tree | 16882e9bc9e35eacb870a6d8a71617e579c4ffdc /include/linux/fs.h | |
| parent | e07ecd76d4db7bda1e9495395b2110a3fe28845a (diff) | |
| parent | 55f5560d8c18fe33fc169f8d244a9247dcac7612 (diff) | |
Merge branch 'for-4.5/block-dax' into for-4.5/libnvdimmlibnvdimm-for-4.5
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 3aa514254161..96fabc93b583 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -482,6 +482,9 @@ struct block_device { int bd_fsfreeze_count; /* Mutex for freeze */ struct mutex bd_fsfreeze_mutex; +#ifdef CONFIG_FS_DAX + int bd_map_count; +#endif }; /* @@ -2264,6 +2267,14 @@ extern struct super_block *freeze_bdev(struct block_device *); extern void emergency_thaw_all(void); extern int thaw_bdev(struct block_device *bdev, struct super_block *sb); extern int fsync_bdev(struct block_device *); +#ifdef CONFIG_FS_DAX +extern bool blkdev_dax_capable(struct block_device *bdev); +#else +static inline bool blkdev_dax_capable(struct block_device *bdev) +{ + return false; +} +#endif extern struct super_block *blockdev_superblock; |