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Date:	Fri, 31 May 2013 11:42:57 +0200
From:	Jan Kara <>
To:	Ted Tso <>
Cc:, Jan Kara <>
Subject: [PATCH 24/26] 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 <>
 fs/ext4/indirect.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index c8b3861..8a98fed 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,
 	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

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