ext4: remove unnecessary wait for extent conversion in ext4_fallocate()

Now that we don't merge uninitialized extents anymore,
ext4_fallocate() is free to operate on the inode while there are still
some extent conversions pending - it won't disturb them in any way.

Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Reviewed-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 265cb0e50c519bc02c54bb754f51c4a98622e49f..25c86aaa38d6aaaf89594baa90c087f92d4b49a6 100644 (file)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4392,8 +4392,6 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
        if (len <= EXT_UNINIT_MAX_LEN << blkbits)
                flags |= EXT4_GET_BLOCKS_NO_NORMALIZE;
 
-       /* Prevent race condition between unwritten */
-       ext4_flush_unwritten_io(inode);
 retry:
        while (ret >= 0 && ret < max_blocks) {
                map.m_lblk = map.m_lblk + ret;