From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <20070816074628.012251000@chello.nl> References: <20070816074525.065850000@chello.nl> Date: Thu, 16 Aug 2007 09:45:39 +0200 From: Peter Zijlstra Subject: [PATCH 14/23] mtd: clean up the backing_dev_info usage Content-Disposition: inline; filename=mtd-bdi-fixups.patch Sender: owner-linux-mm@kvack.org Return-Path: 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 List-ID: Give each mtd device its own backing_dev_info instance. Signed-off-by: Peter Zijlstra Cc: David Woodhouse --- 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 #include #include +#include #include #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 #include #include +#include #include #include @@ -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); -- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org