From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: miklos@szeredi.hu, akpm@linux-foundation.org, neilb@suse.de,
dgc@sgi.com, tomoki.sekiyama.qu@hitachi.com,
a.p.zijlstra@chello.nl, nikita@clusterfs.com,
trond.myklebust@fys.uio.no, yingchao.zhou@gmail.com,
richard@rsk.demon.co.uk, torvalds@linux-foundation.org,
David Woodhouse <dwmw2@infradead.org>
Subject: [PATCH 14/23] mtd: clean up the backing_dev_info usage
Date: Thu, 16 Aug 2007 09:45:39 +0200 [thread overview]
Message-ID: <20070816074628.012251000@chello.nl> (raw)
In-Reply-To: <20070816074525.065850000@chello.nl>
[-- Attachment #1: mtd-bdi-fixups.patch --]
[-- Type: text/plain, Size: 2157 bytes --]
Give each mtd device its own backing_dev_info instance.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: David Woodhouse <dwmw2@infradead.org>
---
drivers/mtd/mtdcore.c | 8 +++++---
include/linux/mtd/mtd.h | 2 ++
2 files changed, 7 insertions(+), 3 deletions(-)
Index: linux-2.6/drivers/mtd/mtdcore.c
===================================================================
--- linux-2.6.orig/drivers/mtd/mtdcore.c
+++ linux-2.6/drivers/mtd/mtdcore.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/mtd/compatmac.h>
#include <linux/proc_fs.h>
+#include <linux/backing-dev.h>
#include <linux/mtd/mtd.h>
#include "internal.h"
@@ -53,15 +54,16 @@ int add_mtd_device(struct mtd_info *mtd)
if (!mtd->backing_dev_info) {
switch (mtd->type) {
case MTD_RAM:
- mtd->backing_dev_info = &mtd_bdi_rw_mappable;
+ mtd->mtd_backing_dev_info = mtd_bdi_rw_mappable;
break;
case MTD_ROM:
- mtd->backing_dev_info = &mtd_bdi_ro_mappable;
+ mtd->mtd_backing_dev_info = mtd_bdi_ro_mappable;
break;
default:
- mtd->backing_dev_info = &mtd_bdi_unmappable;
+ mtd->mtd_backing_dev_info = mtd_bdi_unmappable;
break;
}
+ mtd->backing_dev_info = &mtd->mtd_backing_dev_info;
}
err = bdi_init(mtd->backing_dev_info);
if (err)
Index: linux-2.6/include/linux/mtd/mtd.h
===================================================================
--- linux-2.6.orig/include/linux/mtd/mtd.h
+++ linux-2.6/include/linux/mtd/mtd.h
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/uio.h>
#include <linux/notifier.h>
+#include <linux/backing-dev.h>
#include <linux/mtd/compatmac.h>
#include <mtd/mtd-abi.h>
@@ -154,6 +155,7 @@ struct mtd_info {
* - provides mmap capabilities
*/
struct backing_dev_info *backing_dev_info;
+ struct backing_dev_info mtd_backing_dev_info;
int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
--
--
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next prev parent reply other threads:[~2007-08-16 7:45 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-16 7:45 [PATCH 00/23] per device dirty throttling -v9 Peter Zijlstra
2007-08-16 7:45 ` [PATCH 01/23] nfs: remove congestion_end() Peter Zijlstra
2007-08-16 7:45 ` [PATCH 02/23] lib: percpu_counter_add Peter Zijlstra
2007-08-17 15:48 ` Josef Sipek
2007-08-16 7:45 ` [PATCH 03/23] lib: percpu_counter_sub Peter Zijlstra
2007-08-16 7:45 ` [PATCH 04/23] lib: percpu_counter variable batch Peter Zijlstra
2007-08-16 7:45 ` [PATCH 05/23] lib: make percpu_counter_add take s64 Peter Zijlstra
2007-08-16 7:45 ` [PATCH 06/23] lib: percpu_counter_set Peter Zijlstra
2007-08-16 7:45 ` [PATCH 07/23] lib: percpu_counter_sum_positive Peter Zijlstra
2007-08-16 7:45 ` [PATCH 08/23] lib: percpu_count_sum() Peter Zijlstra
2007-08-16 7:45 ` [PATCH 09/23] lib: percpu_counter_init error handling Peter Zijlstra
2007-08-17 15:56 ` Josef Sipek
2007-08-17 16:03 ` Peter Zijlstra
2007-08-18 8:09 ` Peter Zijlstra
2007-08-23 18:24 ` Josef Sipek
2007-08-16 7:45 ` [PATCH 10/23] lib: percpu_counter_init_irq Peter Zijlstra
2007-08-16 7:45 ` [PATCH 11/23] mm: bdi init hooks Peter Zijlstra
2007-08-17 16:10 ` Josef Sipek
2007-08-17 16:15 ` Peter Zijlstra
2007-08-16 7:45 ` [PATCH 12/23] containers: " Peter Zijlstra
2007-08-16 7:45 ` [PATCH 13/23] mtd: " Peter Zijlstra
2007-08-16 7:45 ` Peter Zijlstra [this message]
2007-08-16 7:45 ` [PATCH 15/23] mtd: give mtdconcat devices their own backing_dev_info Peter Zijlstra
2007-08-16 7:45 ` [PATCH 16/23] mm: scalable bdi statistics counters Peter Zijlstra
2007-08-17 16:20 ` Josef Sipek
2007-08-17 16:23 ` Peter Zijlstra
2007-08-16 7:45 ` [PATCH 17/23] mm: count reclaimable pages per BDI Peter Zijlstra
2007-08-17 16:23 ` Josef Sipek
2007-08-16 7:45 ` [PATCH 18/23] mm: count writeback " Peter Zijlstra
2007-08-16 7:45 ` [PATCH 19/23] mm: expose BDI statistics in sysfs Peter Zijlstra
2007-08-16 7:45 ` [PATCH 20/23] lib: floating proportions Peter Zijlstra
2007-08-16 7:45 ` [PATCH 21/23] mm: per device dirty threshold Peter Zijlstra
2007-08-16 7:45 ` [PATCH 22/23] mm: dirty balancing for tasks Peter Zijlstra
2007-08-16 7:45 ` [PATCH 23/23] debug: sysfs files for the current ratio/size/total Peter Zijlstra
2007-08-16 21:29 ` [PATCH 00/23] per device dirty throttling -v9 Christoph Lameter
2007-08-17 7:19 ` Peter Zijlstra
2007-08-17 20:37 ` Christoph Lameter
2007-09-11 19:53 [PATCH 00/23] per device dirty throttling -v10 Peter Zijlstra
2007-09-11 19:54 ` [PATCH 14/23] mtd: clean up the backing_dev_info usage Peter Zijlstra
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