[PATCH 13/23] mtd: clean up the backing_dev_info usage
From: Peter Zijlstra <hidden>
Date: 2007-08-03 13:00:42
Also in:
lkml
Give each mtd device its own backing_dev_info instance. Signed-off-by: Peter Zijlstra <redacted> --- 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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