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Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4e33b5eca694..fd3d68f10ee5 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4299,9 +4299,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount;
}
- if (dax_supported(dax_dev, sb->s_bdev, blocksize, 0,
- bdev_nr_sectors(sb->s_bdev)))
- set_bit(EXT4_FLAGS_BDEV_IS_DAX, &sbi->s_ext4_flags);
+ if (dax_dev) {
+ if (blocksize == PAGE_SIZE)
+ set_bit(EXT4_FLAGS_BDEV_IS_DAX, &sbi->s_ext4_flags);
+ else
+ ext4_msg(sb, KERN_ERR, "unsupported blocksize for DAX\n");
+ }
if (sbi->s_mount_opt & EXT4_MOUNT_DAX_ALWAYS) {
if (ext4_has_feature_inline_data(sb)) {