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-rw-r--r--drivers/block/loop.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 7b3b94ddddcc..c774121684d7 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -662,7 +662,8 @@ static void do_loop_switch(struct loop_device *lo, struct switch_request *p)
mapping_set_gfp_mask(old_file->f_mapping, lo->old_gfp_mask);
lo->lo_backing_file = file;
- lo->lo_blocksize = mapping->host->i_blksize;
+ lo->lo_blocksize = S_ISBLK(mapping->host->i_mode) ?
+ mapping->host->i_bdev->bd_block_size : PAGE_SIZE;
lo->old_gfp_mask = mapping_gfp_mask(mapping);
mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS));
complete(&p->wait);
@@ -794,7 +795,9 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
if (!(lo_flags & LO_FLAGS_USE_AOPS) && !file->f_op->write)
lo_flags |= LO_FLAGS_READ_ONLY;
- lo_blocksize = inode->i_blksize;
+ lo_blocksize = S_ISBLK(inode->i_mode) ?
+ inode->i_bdev->bd_block_size : PAGE_SIZE;
+
error = 0;
} else {
goto out_putf;