diff options
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9a936ecbaa3b..0343f682504d 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4338,7 +4338,7 @@ static struct ext4_sb_info *ext4_alloc_sbi(struct super_block *sb) if (!sbi) return NULL; - sbi->s_daxdev = fs_dax_get_by_bdev(sb->s_bdev); + sbi->s_daxdev = fs_dax_get_by_bdev(sb->s_bdev, &sbi->s_dax_part_off); sbi->s_blockgroup_lock = kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL); @@ -4756,9 +4756,12 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb) goto failed_mount; } - if (dax_supported(sbi->s_daxdev, sb->s_bdev, blocksize, 0, - bdev_nr_sectors(sb->s_bdev))) - set_bit(EXT4_FLAGS_BDEV_IS_DAX, &sbi->s_ext4_flags); + if (sbi->s_daxdev) { + 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)) { |