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From: Dave Chinner <david@fromorbit.com>
To: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com
Subject: [PATCH 4/4] xfs: remove nr_to_write writeback windup.
Date: Tue, 20 Apr 2010 12:41:54 +1000	[thread overview]
Message-ID: <1271731314-5893-5-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1271731314-5893-1-git-send-email-david@fromorbit.com>

From: Dave Chinner <dchinner@redhat.com>

Now that the background flush code has been fixed, we shouldn't need to
silently multiply the wbc->nr_to_write to get good writeback. Remove
that code.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/linux-2.6/xfs_aops.c |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 9962850..2b2225d 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1336,14 +1336,6 @@ xfs_vm_writepage(
 	if (!page_has_buffers(page))
 		create_empty_buffers(page, 1 << inode->i_blkbits, 0);
 
-
-	/*
-	 *  VM calculation for nr_to_write seems off.  Bump it way
-	 *  up, this gets simple streaming writes zippy again.
-	 *  To be reviewed again after Jens' writeback changes.
-	 */
-	wbc->nr_to_write *= 4;
-
 	/*
 	 * Convert delayed allocate, unwritten or unmapped space
 	 * to real space and flush out to disk.
-- 
1.6.5

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WARNING: multiple messages have this Message-ID (diff)
From: Dave Chinner <david@fromorbit.com>
To: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com
Subject: [PATCH 4/4] xfs: remove nr_to_write writeback windup.
Date: Tue, 20 Apr 2010 12:41:54 +1000	[thread overview]
Message-ID: <1271731314-5893-5-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1271731314-5893-1-git-send-email-david@fromorbit.com>

From: Dave Chinner <dchinner@redhat.com>

Now that the background flush code has been fixed, we shouldn't need to
silently multiply the wbc->nr_to_write to get good writeback. Remove
that code.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/linux-2.6/xfs_aops.c |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 9962850..2b2225d 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1336,14 +1336,6 @@ xfs_vm_writepage(
 	if (!page_has_buffers(page))
 		create_empty_buffers(page, 1 << inode->i_blkbits, 0);
 
-
-	/*
-	 *  VM calculation for nr_to_write seems off.  Bump it way
-	 *  up, this gets simple streaming writes zippy again.
-	 *  To be reviewed again after Jens' writeback changes.
-	 */
-	wbc->nr_to_write *= 4;
-
 	/*
 	 * Convert delayed allocate, unwritten or unmapped space
 	 * to real space and flush out to disk.
-- 
1.6.5


  parent reply	other threads:[~2010-04-20  2:41 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-20  2:41 [PATCH 0/4] writeback: tracing and wbc->nr_to_write fixes Dave Chinner
2010-04-20  2:41 ` Dave Chinner
2010-04-20  2:41 ` [PATCH 1/4] writeback: initial tracing support Dave Chinner
2010-04-20  2:41   ` Dave Chinner
2010-05-21 15:06   ` Christoph Hellwig
2010-05-21 15:06     ` Christoph Hellwig
2010-04-20  2:41 ` [PATCH 2/4] writeback: Add tracing to balance_dirty_pages Dave Chinner
2010-04-20  2:41   ` Dave Chinner
2010-04-20  2:41 ` [PATCH 3/4] writeback: pay attention to wbc->nr_to_write in write_cache_pages Dave Chinner
2010-04-20  2:41   ` Dave Chinner
2010-04-22 19:07   ` Jan Kara
2010-04-22 19:07     ` Jan Kara
2010-04-25  3:33   ` tytso
2010-04-25  3:33     ` tytso
2010-04-25  3:33     ` tytso
2010-04-26  1:49     ` Dave Chinner
2010-04-26  1:49       ` Dave Chinner
2010-04-26  1:49       ` Dave Chinner
2010-04-26  2:43       ` tytso
2010-04-26  2:43         ` tytso
2010-04-26  2:45         ` tytso
2010-04-26  2:45           ` tytso
2010-04-27  3:30         ` Dave Chinner
2010-04-27  3:30           ` Dave Chinner
2010-04-29 21:39   ` Andrew Morton
2010-04-29 21:39     ` Andrew Morton
2010-04-30  6:01     ` Aneesh Kumar K. V
2010-04-30  6:01       ` Aneesh Kumar K. V
2010-04-30 19:43       ` Andrew Morton
2010-04-30 19:43         ` Andrew Morton
2010-05-01 19:47         ` tytso
2010-05-01 19:47           ` tytso
2010-04-20  2:41 ` Dave Chinner [this message]
2010-04-20  2:41   ` [PATCH 4/4] xfs: remove nr_to_write writeback windup Dave Chinner
2010-04-22 19:09   ` Jan Kara
2010-04-22 19:09     ` Jan Kara
2010-04-26  0:46     ` Dave Chinner
2010-04-26  0:46       ` Dave Chinner
2010-04-20  3:40 ` [PATCH 5/4] writeback: limit write_cache_pages integrity scanning to current EOF Dave Chinner
2010-04-20  3:40   ` Dave Chinner
2010-04-20 23:28   ` Jamie Lokier
2010-04-20 23:28     ` Jamie Lokier
2010-04-20 23:31     ` Dave Chinner
2010-04-20 23:31       ` Dave Chinner
2010-04-22 19:13   ` Jan Kara
2010-04-22 19:13     ` Jan Kara
2010-04-20 12:02 ` [PATCH 0/4] writeback: tracing and wbc->nr_to_write fixes Richard Kennedy
2010-04-20 12:02   ` Richard Kennedy
2010-04-20 23:29   ` Dave Chinner
2010-04-20 23:29     ` Dave Chinner
2010-05-21 15:05 ` Christoph Hellwig
2010-05-21 15:05   ` Christoph Hellwig
2010-05-22  0:09   ` Dave Chinner
2010-05-22  0:09     ` Dave Chinner

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