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authorVyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>2014-08-08 14:20:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-08 15:57:20 -0700
commitda7141fb78db915680616e15677539fc8140cf53 (patch)
treefcec7b80ddf5bf6ff0b98b1ca7fa7610bf309432 /fs/nilfs2/the_nilfs.h
parentaebe17f6844488ff0b824fbac28d9f342f7b078e (diff)
downloadlinux-da7141fb78db915680616e15677539fc8140cf53.tar.bz2
nilfs2: add /sys/fs/nilfs2/<device> group
This patch adds creation of /sys/fs/nilfs2/<device> group. The <device> group contains attributes that describe file system partition's details: (1) revision - show NILFS file system revision. (2) blocksize - show volume block size in bytes. (3) device_size - show volume size in bytes. (4) free_blocks - show count of free blocks on volume. (5) uuid - show volume's UUID. (6) volume_name - show volume's name. Signed-off-by: Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Michael L. Semon <mlsemon35@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/the_nilfs.h')
-rw-r--r--fs/nilfs2/the_nilfs.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index de8cc53b4a5c..34bc7bd57b0b 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -95,6 +95,8 @@ enum {
* @ns_inode_size: size of on-disk inode
* @ns_first_ino: first not-special inode number
* @ns_crc_seed: seed value of CRC32 calculation
+ * @ns_dev_kobj: /sys/fs/<nilfs>/<device>
+ * @ns_dev_kobj_unregister: completion state
*/
struct the_nilfs {
unsigned long ns_flags;
@@ -188,6 +190,10 @@ struct the_nilfs {
int ns_inode_size;
int ns_first_ino;
u32 ns_crc_seed;
+
+ /* /sys/fs/<nilfs>/<device> */
+ struct kobject ns_dev_kobj;
+ struct completion ns_dev_kobj_unregister;
};
#define THE_NILFS_FNS(bit, name) \