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-rw-r--r--drivers/dax/super.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 3943feb9a090..1d7bd96511f0 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -80,9 +80,9 @@ EXPORT_SYMBOL_GPL(fs_dax_get_by_bdev);
* This is a library function for filesystems to check if the block device
* can be mounted with dax option.
*
- * Return: negative errno if unsupported, 0 if supported.
+ * Return: true if supported, false if unsupported
*/
-int __bdev_dax_supported(struct block_device *bdev, int blocksize)
+bool __bdev_dax_supported(struct block_device *bdev, int blocksize)
{
struct dax_device *dax_dev;
pgoff_t pgoff;
@@ -95,21 +95,21 @@ int __bdev_dax_supported(struct block_device *bdev, int blocksize)
if (blocksize != PAGE_SIZE) {
pr_debug("%s: error: unsupported blocksize for dax\n",
bdevname(bdev, buf));
- return -EINVAL;
+ return false;
}
err = bdev_dax_pgoff(bdev, 0, PAGE_SIZE, &pgoff);
if (err) {
pr_debug("%s: error: unaligned partition for dax\n",
bdevname(bdev, buf));
- return err;
+ 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 -EOPNOTSUPP;
+ return false;
}
id = dax_read_lock();
@@ -121,7 +121,7 @@ int __bdev_dax_supported(struct block_device *bdev, int blocksize)
if (len < 1) {
pr_debug("%s: error: dax access failed (%ld)\n",
bdevname(bdev, buf), len);
- return len < 0 ? len : -EIO;
+ return false;
}
if (IS_ENABLED(CONFIG_FS_DAX_LIMITED) && pfn_t_special(pfn)) {
@@ -139,10 +139,10 @@ int __bdev_dax_supported(struct block_device *bdev, int blocksize)
} else {
pr_debug("%s: error: dax support not enabled\n",
bdevname(bdev, buf));
- return -EOPNOTSUPP;
+ return false;
}
- return 0;
+ return true;
}
EXPORT_SYMBOL_GPL(__bdev_dax_supported);
#endif