diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-11-29 11:21:36 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2021-12-04 08:58:50 -0800 |
| commit | 5d2a228b9e1319ff188f9ea89006fbe575561921 (patch) | |
| tree | 5008bb2a1ce20f5f1b3e0ef9e7c802a9f8ad37fd /drivers/dax | |
| parent | d751939235b9b7bc4af15f90a3e99288a8b844a7 (diff) | |
| download | linux-5d2a228b9e1319ff188f9ea89006fbe575561921.tar.bz2 | |
dm: make the DAX support depend on CONFIG_FS_DAX
The device mapper DAX support is all hanging off a block device and thus
can't be used with device dax. Make it depend on CONFIG_FS_DAX instead
of CONFIG_DAX_DRIVER. This also means that bdev_dax_pgoff only needs to
be built under CONFIG_FS_DAX now.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Link: https://lore.kernel.org/r/20211129102203.2243509-3-hch@lst.de
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/super.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c index b882cf8106ea..e20d0cef10a1 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -63,7 +63,7 @@ static int dax_host_hash(const char *host) return hashlen_hash(hashlen_string("DAX", host)) % DAX_HASH_SIZE; } -#ifdef CONFIG_BLOCK +#if defined(CONFIG_BLOCK) && defined(CONFIG_FS_DAX) #include <linux/blkdev.h> int bdev_dax_pgoff(struct block_device *bdev, sector_t sector, size_t size, @@ -80,7 +80,6 @@ int bdev_dax_pgoff(struct block_device *bdev, sector_t sector, size_t size, } EXPORT_SYMBOL(bdev_dax_pgoff); -#if IS_ENABLED(CONFIG_FS_DAX) /** * dax_get_by_host() - temporary lookup mechanism for filesystem-dax * @host: alternate name for the device registered by a dax driver @@ -219,8 +218,7 @@ bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev, return ret; } EXPORT_SYMBOL_GPL(dax_supported); -#endif /* CONFIG_FS_DAX */ -#endif /* CONFIG_BLOCK */ +#endif /* CONFIG_BLOCK && CONFIG_FS_DAX */ enum dax_device_flags { /* !alive + rcu grace period == no new operations / mappings */ |