[PATCH 4/4] ext2: Use unmap_underlying_metadata_ext() instead of iteration
From: Jan Kara <jack@suse.cz>
Date: 2016-10-21 11:55:50
Also in:
linux-fsdevel
Subsystem:
ext2 file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Jan Kara, Alexander Viro, Christian Brauner, Linus Torvalds
Use unmap_underlying_metadata_ext() instead of iterating through blocks one by one. Signed-off-by: Jan Kara <jack@suse.cz> --- fs/ext2/inode.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index d831e24dc885..335cd1e1f902 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c@@ -732,16 +732,13 @@ static int ext2_get_blocks(struct inode *inode, } if (IS_DAX(inode)) { - int i; - /* * We must unmap blocks before zeroing so that writeback cannot * overwrite zeros with stale data from block device page cache. */ - for (i = 0; i < count; i++) { - unmap_underlying_metadata(inode->i_sb->s_bdev, - le32_to_cpu(chain[depth-1].key) + i); - } + unmap_underlying_metadata_ext(inode->i_sb->s_bdev, + le32_to_cpu(chain[depth-1].key), + count); /* * block must be initialised before we put it in the tree * so that it's not found by another thread before it's
--
2.6.6