From 38b8ff7db4d99ebfabaee81b8747877424d1cf28 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 4 Jun 2013 14:41:29 -0400 Subject: [PATCH] ext4: Remove wait for unwritten extents in ext4_ind_direct_IO() We don't have to wait for unwritten extent conversion in ext4_ind_direct_IO() as all writes that happened before DIO are flushed by the generic code and extent conversion has happened before we cleared PageWriteback bit. Reviewed-by: Zheng Liu Signed-off-by: Jan Kara Signed-off-by: "Theodore Ts'o" --- fs/ext4/indirect.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index f7742f03cdcb..2a1f8a577e08 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -675,11 +675,6 @@ ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb, retry: if (rw == READ && ext4_should_dioread_nolock(inode)) { - if (unlikely(atomic_read(&EXT4_I(inode)->i_unwritten))) { - mutex_lock(&inode->i_mutex); - ext4_flush_unwritten_io(inode); - mutex_unlock(&inode->i_mutex); - } /* * Nolock dioread optimization may be dynamically disabled * via ext4_inode_block_unlocked_dio(). Check inode's state -- 2.20.1