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Message-Id: <1369993379-13017-25-git-send-email-jack@suse.cz>
Date: Fri, 31 May 2013 11:42:57 +0200
From: Jan Kara <jack@...e.cz>
To: Ted Tso <tytso@....edu>
Cc: linux-ext4@...r.kernel.org, Jan Kara <jack@...e.cz>
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 <wenqing.lz@...bao.com>
Signed-off-by: Jan Kara <jack@...e.cz>
---
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,
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
--
1.8.1.4
--
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