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authorChristoph Hellwig <hch@lst.de>2021-08-26 15:55:10 +0200
committerDan Williams <dan.j.williams@intel.com>2021-08-26 16:52:03 -0700
commitbdd3c50d83bf7f6acc869b48d02670d19030ae03 (patch)
treeb03846a3a7f8dc3fa6527ad3c7fd7df786530c20 /drivers/dax
parenta384f088e4a102b97a59bc0fdaf8b60bca177679 (diff)
downloadlinux-bdd3c50d83bf7f6acc869b48d02670d19030ae03.tar.bz2
dax: remove bdev_dax_supported
All callers already have a dax_device obtained from fs_dax_get_by_bdev at hand, so just pass that to dax_supported() insted of doing another lookup. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Link: https://lore.kernel.org/r/20210826135510.6293-10-hch@lst.de Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dax')
-rw-r--r--drivers/dax/super.c42
1 files changed, 1 insertions, 41 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index eed02729add3..fc89e91beea7 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -220,47 +220,7 @@ bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
}
EXPORT_SYMBOL_GPL(dax_supported);
#endif /* CONFIG_FS_DAX */
-
-/**
- * __bdev_dax_supported() - Check if the device supports dax for filesystem
- * @bdev: block device to check
- * @blocksize: The block size of the device
- *
- * This is a library function for filesystems to check if the block device
- * can be mounted with dax option.
- *
- * Return: true if supported, false if unsupported
- */
-bool __bdev_dax_supported(struct block_device *bdev, int blocksize)
-{
- struct dax_device *dax_dev;
- struct request_queue *q;
- char buf[BDEVNAME_SIZE];
- bool ret;
-
- q = bdev_get_queue(bdev);
- if (!q || !blk_queue_dax(q)) {
- pr_debug("%s: error: request queue doesn't support dax\n",
- bdevname(bdev, buf));
- return false;
- }
-
- dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
- if (!dax_dev) {
- pr_debug("%s: error: device does not support dax\n",
- bdevname(bdev, buf));
- return false;
- }
-
- ret = dax_supported(dax_dev, bdev, blocksize, 0,
- i_size_read(bdev->bd_inode) / 512);
-
- put_dax(dax_dev);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(__bdev_dax_supported);
-#endif
+#endif /* CONFIG_BLOCK */
enum dax_device_flags {
/* !alive + rcu grace period == no new operations / mappings */