From: Jan Kara <jack@suse.cz>
To: Ted Tso <tytso@mit.edu>
Cc: linux-ext4@vger.kernel.org, Jan Kara <jack@suse.cz>
Subject: [PATCH 03/12] ext4: Remove bogus wait for unwritten extents in ext4_ind_direct_IO
Date: Fri, 18 Jan 2013 13:00:37 +0100 [thread overview]
Message-ID: <1358510446-19174-4-git-send-email-jack@suse.cz> (raw)
In-Reply-To: <1358510446-19174-1-git-send-email-jack@suse.cz>
When using indirect blocks there is no possibility to have any unwritten
extents. So wait for them in ext4_ind_direct_IO() is just bogus.
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
fs/ext4/indirect.c | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 20862f9..993247c 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -807,11 +807,6 @@ 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
--
1.7.1
next prev parent reply other threads:[~2013-01-18 12:00 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-18 12:00 [PATCH 0/12 v2] ext4: Several simplifications and fixes Jan Kara
2013-01-18 12:00 ` [PATCH 01/12] ext4: Always use ext4_bio_write_page() for writeout Jan Kara
2013-01-28 14:31 ` Theodore Ts'o
2013-01-18 12:00 ` [PATCH 02/12] ext4: Use redirty_page_for_writepage() in ext4_bio_write_page() Jan Kara
2013-01-28 14:34 ` Theodore Ts'o
2013-01-18 12:00 ` Jan Kara [this message]
2013-01-22 11:11 ` [PATCH 03/12] ext4: Remove bogus wait for unwritten extents in ext4_ind_direct_IO Dmitry Monakhov
2013-01-22 13:44 ` Jan Kara
2013-01-22 14:12 ` Dmitry Monakhov
2013-01-22 15:21 ` Jan Kara
2013-01-22 14:22 ` Zheng Liu
2013-01-22 15:22 ` Jan Kara
2013-01-22 16:00 ` Zheng Liu
2013-01-22 23:14 ` Jan Kara
2013-01-23 6:11 ` Zheng Liu
2013-01-23 9:42 ` Jan Kara
2013-01-18 12:00 ` [PATCH 04/12] ext4: Disable merging of uninitialized extents Jan Kara
2013-01-24 9:49 ` Dmitry Monakhov
2013-01-24 15:12 ` Jan Kara
2013-01-24 15:32 ` Dmitry Monakhov
2013-01-28 14:36 ` Theodore Ts'o
2013-01-28 15:02 ` Dmitry Monakhov
2013-01-28 15:38 ` Theodore Ts'o
2013-01-29 7:41 ` Dmitry Monakhov
2013-01-29 8:37 ` Zheng Liu
2013-01-31 7:47 ` Dmitry Monakhov
2013-01-31 12:39 ` Jan Kara
2013-01-31 14:09 ` Dmitry Monakhov
2013-01-31 16:54 ` Theodore Ts'o
2013-02-09 17:10 ` REGRESSION: " Theodore Ts'o
2013-02-12 21:58 ` Jan Kara
2013-02-13 4:57 ` Theodore Ts'o
2013-02-13 7:26 ` Dmitry Monakhov
2013-02-13 15:08 ` Merge window planning for ext4 and Ted's vacation Theodore Ts'o
2013-02-14 10:47 ` REGRESSION: [PATCH 04/12] ext4: Disable merging of uninitialized extents Jan Kara
2013-02-14 16:11 ` Jan Kara
2013-02-14 19:05 ` Theodore Ts'o
2013-02-14 21:32 ` Jan Kara
2013-01-18 12:00 ` [PATCH 05/12] ext4: Remove unnecessary wait for extent conversion in ext4_fallocate() Jan Kara
2013-01-18 12:00 ` [PATCH 06/12] ext4: Move work from io_end to inode Jan Kara
2013-01-28 14:45 ` Theodore Ts'o
2013-01-18 12:00 ` [PATCH 07/12] ext4: Simplify list handling in ext4_do_flush_completed_IO() Jan Kara
2013-01-28 14:51 ` Theodore Ts'o
2013-01-18 12:00 ` [PATCH 08/12] ext4: Remove __ext4_journalled_writepage() from mpage_da_submit_io() Jan Kara
2013-01-28 14:40 ` Theodore Ts'o
2013-01-18 12:00 ` [PATCH 09/12] ext4: Dirty page has always buffers attached Jan Kara
2013-01-28 17:55 ` Theodore Ts'o
2013-01-18 12:00 ` [PATCH 10/12] ext4: Simplify mpage_add_bh_to_extent() Jan Kara
2013-01-28 18:06 ` Theodore Ts'o
2013-01-18 12:00 ` [PATCH 11/12] ext4: Make ext4_bio_writepage() handle unprepared buffers Jan Kara
2013-01-29 1:59 ` Theodore Ts'o
2013-01-18 12:00 ` [PATCH 12/12] ext4: Fix ext4_writepage() to achieve data=ordered guarantees Jan Kara
2013-01-29 2:08 ` Theodore Ts'o
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