From 7c4cc30024946dae9530cd6dc0d8d4eb40fca173 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 12 Apr 2017 12:24:49 +0200 Subject: [PATCH] bdi: Drop 'parent' argument from bdi_register[_va]() Drop 'parent' argument of bdi_register() and bdi_register_va(). It is always NULL. Reviewed-by: Christoph Hellwig Signed-off-by: Jan Kara Signed-off-by: Jens Axboe --- drivers/mtd/mtdcore.c | 2 +- fs/super.c | 2 +- include/linux/backing-dev.h | 9 ++++----- mm/backing-dev.c | 13 +++++-------- 4 files changed, 11 insertions(+), 15 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 23e2e56ca54e..1517da3ddd7d 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1782,7 +1782,7 @@ static struct backing_dev_info * __init mtd_bdi_init(char *name) * We put '-0' suffix to the name to get the same name format as we * used to get. Since this is called only once, we get a unique name. */ - ret = bdi_register(bdi, NULL, "%.28s-0", name); + ret = bdi_register(bdi, "%.28s-0", name); if (ret) bdi_put(bdi); diff --git a/fs/super.c b/fs/super.c index 8444d26926ef..adb0c0de428c 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1272,7 +1272,7 @@ int super_setup_bdi_name(struct super_block *sb, char *fmt, ...) bdi->name = sb->s_type->name; va_start(args, fmt); - err = bdi_register_va(bdi, NULL, fmt, args); + err = bdi_register_va(bdi, fmt, args); va_end(args); if (err) { bdi_put(bdi); diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index aaeb2ec5d33c..557d84063934 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -25,11 +25,10 @@ static inline struct backing_dev_info *bdi_get(struct backing_dev_info *bdi) void bdi_put(struct backing_dev_info *bdi); -__printf(3, 4) -int bdi_register(struct backing_dev_info *bdi, struct device *parent, - const char *fmt, ...); -int bdi_register_va(struct backing_dev_info *bdi, struct device *parent, - const char *fmt, va_list args); +__printf(2, 3) +int bdi_register(struct backing_dev_info *bdi, const char *fmt, ...); +int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, + va_list args); int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner); void bdi_unregister(struct backing_dev_info *bdi); diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 4dcd56947f2a..f028a9a472fd 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -856,15 +856,14 @@ struct backing_dev_info *bdi_alloc_node(gfp_t gfp_mask, int node_id) } EXPORT_SYMBOL(bdi_alloc_node); -int bdi_register_va(struct backing_dev_info *bdi, struct device *parent, - const char *fmt, va_list args) +int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args) { struct device *dev; if (bdi->dev) /* The driver needs to use separate queues per device */ return 0; - dev = device_create_vargs(bdi_class, parent, MKDEV(0, 0), bdi, fmt, args); + dev = device_create_vargs(bdi_class, NULL, MKDEV(0, 0), bdi, fmt, args); if (IS_ERR(dev)) return PTR_ERR(dev); @@ -883,14 +882,13 @@ int bdi_register_va(struct backing_dev_info *bdi, struct device *parent, } EXPORT_SYMBOL(bdi_register_va); -int bdi_register(struct backing_dev_info *bdi, struct device *parent, - const char *fmt, ...) +int bdi_register(struct backing_dev_info *bdi, const char *fmt, ...) { va_list args; int ret; va_start(args, fmt); - ret = bdi_register_va(bdi, parent, fmt, args); + ret = bdi_register_va(bdi, fmt, args); va_end(args); return ret; } @@ -900,8 +898,7 @@ int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner) { int rc; - rc = bdi_register(bdi, NULL, "%u:%u", MAJOR(owner->devt), - MINOR(owner->devt)); + rc = bdi_register(bdi, "%u:%u", MAJOR(owner->devt), MINOR(owner->devt)); if (rc) return rc; /* Leaking owner reference... */ -- 2.20.1