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Message-Id: <20100524223015.837791747@clark.site>
Date: Mon, 24 May 2010 15:28:05 -0700
From: Greg KH <gregkh@...e.de>
To: linux-kernel@...r.kernel.org, stable@...nel.org
Cc: stable-review@...nel.org, torvalds@...ux-foundation.org,
akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
linux-fsdevel@...r.kernel.org,
Ext4 Developers List <linux-ext4@...r.kernel.org>,
"Theodore Tso" <tytso@....edu>,
"Jayson R. King" <dev@...sonking.com>,
"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [09/24] vfs: Remove the range_cont writeback mode.
2.6.27-stable review patch. If anyone has any objections, please let us know.
------------------
From: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
commit 74baaaaec8b4f22e1ae279f5ecca4ff705b28912 upstream.
Ext4 was the only user of range_cont writeback mode and ext4 switched
to a different method. So remove the range_cont mode which is not used
in the kernel.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
CC: linux-fsdevel@...r.kernel.org
Signed-off-by: Jayson R. King <dev@...sonking.com>
Signed-off-by: Theodore Ts'o <tytso@....edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
include/linux/writeback.h | 1 -
mm/page-writeback.c | 2 --
2 files changed, 3 deletions(-)
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -62,7 +62,6 @@ struct writeback_control {
unsigned for_writepages:1; /* This is a writepages() call */
unsigned range_cyclic:1; /* range_start is cyclic */
unsigned more_io:1; /* more io to be dispatched */
- unsigned range_cont:1;
};
/*
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1027,8 +1027,6 @@ continue_unlock:
if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
mapping->writeback_index = done_index;
- if (wbc->range_cont)
- wbc->range_start = index << PAGE_CACHE_SHIFT;
return ret;
}
EXPORT_SYMBOL(write_cache_pages);
--
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