[PATCH] dm-md-dependency-tree-in-sysfs-holders-slaves-subdirectory-tidy

Remove all the CONFIG_SYSFS stuff.  That's supposed to all be implemented up
in header files.

Yes, the CONFIG_SYSFS=n data structures will be a little larger than
necessary, but that's a tradeoff we can decide to make.

Cc: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/partitions/check.c

@@ -297,7 +297,6 @@ struct kobj_type ktype_part = {
 	.sysfs_ops	= &part_sysfs_ops,
 };
 
-#ifdef CONFIG_SYSFS
 static inline void partition_sysfs_add_subdir(struct hd_struct *p)
 {
 	struct kobject *k;
@@ -316,10 +315,6 @@ static inline void disk_sysfs_add_subdirs(struct gendisk *disk)
 	disk->slave_dir = kobject_add_dir(k, "slaves");
 	kobject_put(k);
 }
-#else
-#define partition_sysfs_add_subdir(x)	do { } while (0)
-#define disk_sysfs_add_subdirs(x)	do { } while (0)
-#endif
 
 void delete_partition(struct gendisk *disk, int part)
 {
@@ -334,10 +329,8 @@ void delete_partition(struct gendisk *disk, int part)
 	p->ios[0] = p->ios[1] = 0;
 	p->sectors[0] = p->sectors[1] = 0;
 	devfs_remove("%s/part%d", disk->devfs_name, part);
-#ifdef CONFIG_SYSFS
 	if (p->holder_dir)
 		kobject_unregister(p->holder_dir);
-#endif
 	kobject_unregister(&p->kobj);
 }
 
@@ -513,12 +506,10 @@ void del_gendisk(struct gendisk *disk)
 
 	devfs_remove_disk(disk);
 
-#ifdef CONFIG_SYSFS
 	if (disk->holder_dir)
 		kobject_unregister(disk->holder_dir);
 	if (disk->slave_dir)
 		kobject_unregister(disk->slave_dir);
-#endif
 	if (disk->driverfs_dev) {
 		char *disk_name = make_block_name(disk);
 		sysfs_remove_link(&disk->kobj, "device");

include/linux/genhd.h

@@ -78,9 +78,7 @@ struct hd_struct {
 	sector_t start_sect;
 	sector_t nr_sects;
 	struct kobject kobj;
-#ifdef CONFIG_SYSFS
 	struct kobject *holder_dir;
-#endif
 	unsigned ios[2], sectors[2];	/* READs and WRITEs */
 	int policy, partno;
 };
@@ -117,10 +115,8 @@ struct gendisk {
 	int number;			/* more of the same */
 	struct device *driverfs_dev;
 	struct kobject kobj;
-#ifdef CONFIG_SYSFS
 	struct kobject *holder_dir;
 	struct kobject *slave_dir;
-#endif
 
 	struct timer_rand_state *random;
 	int policy;