Re: [PATCH 1/2] dax: pass bdev argument to dax_clear_blocks()

dax_clear_blocks() needs a valid struct block_device and previously it was using inode->i_sb->s_bdev in all cases. This is correct for normal inodes on mounted ext2, ext4 and XFS filesystems, but is incorrect for DAX raw block devices and for XFS real-time devices. Instead, have the caller pass in a struct block_device pointer which it knows to be correct. Signed-off-by: Ross Zwisler <ross.zwisler(a)linux.intel.com&gt; --- fs/dax.c | 4 ++-- fs/ext2/inode.c | 5 +++-- fs/xfs/xfs_aops.c | 2 +- fs/xfs/xfs_aops.h | 1 + fs/xfs/xfs_bmap_util.c | 4 +++- include/linux/dax.h | 3 ++- 6 files changed, 12 insertions(+), 7 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index 227974a..4592241 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -83,9 +83,9 @@ struct page *read_dax_sector(struct block_device *bdev, sector_t n) * and hence this means the stack from this point must follow GFP_NOFS * semantics for all operations. */ -int dax_clear_blocks(struct inode *inode, sector_t block, long _size) +int dax_clear_blocks(struct inode *inode, struct block_device *bdev, + sector_t block, long _size)