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authorJan Kara <jack@suse.cz>2017-04-12 12:24:49 +0200
committerJens Axboe <axboe@fb.com>2017-04-20 12:09:55 -0600
commit7c4cc30024946dae9530cd6dc0d8d4eb40fca173 (patch)
treeb50f82b17ac02ce2b082a26c4ec7a73dd720db0e
parent2e82b84c01d9438d86079980e22e036eee71e754 (diff)
downloadlwn-7c4cc30024946dae9530cd6dc0d8d4eb40fca173.tar.gz
lwn-7c4cc30024946dae9530cd6dc0d8d4eb40fca173.zip
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 <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--drivers/mtd/mtdcore.c2
-rw-r--r--fs/super.c2
-rw-r--r--include/linux/backing-dev.h9
-rw-r--r--mm/backing-dev.c13
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... */