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[PATCH] dm/md dependency tree in sysfs: holders/slaves subdirectory

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Creating "slaves" and "holders" directories in /sys/block/<disk> and
creating "holders" directory under /sys/block/<disk>/<partition>

Signed-off-by: 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>
This commit is contained in:
Jun'ichi Nomura
2006-03-27 01:17:55 -08:00
committed by Linus Torvalds
parent 3ac51e741a
commit 6a4d44c1f1
2 changed files with 43 additions and 0 deletions
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7
include/linux/genhd.h
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@ -78,6 +78,9 @@ 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;
};
@ -114,6 +117,10 @@ 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;