From 02a0ba1c60c2ad532322089a60256c8b0f46678c Mon Sep 17 00:00:00 2001 From: Vyacheslav Dubeyko Date: Fri, 8 Aug 2014 14:20:48 -0700 Subject: nilfs2: add /sys/fs/nilfs2//checkpoints group This patch adds creation of /sys/fs/nilfs2//checkpoints group. The checkpoints group contains attributes that describe details about volume's checkpoints: (1) checkpoints_number - show number of checkpoints on volume. (2) snapshots_number - show number of snapshots on volume. (3) last_seg_checkpoint - show checkpoint number of the latest segment. (4) next_checkpoint - show next checkpoint number. Signed-off-by: Vyacheslav Dubeyko Cc: Vyacheslav Dubeyko Cc: Ryusuke Konishi Cc: Michael L. Semon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nilfs2/sysfs.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'fs/nilfs2/sysfs.h') diff --git a/fs/nilfs2/sysfs.h b/fs/nilfs2/sysfs.h index 228bdd14f945..62f0a0dc78ca 100644 --- a/fs/nilfs2/sysfs.h +++ b/fs/nilfs2/sysfs.h @@ -30,6 +30,8 @@ * @sg_superblock_kobj_unregister: completion state * @sg_segctor_kobj: /sys/fs///segctor * @sg_segctor_kobj_unregister: completion state + * @sg_checkpoints_kobj: /sys/fs///checkpoints + * @sg_checkpoints_kobj_unregister: completion state * @sg_segments_kobj: /sys/fs///segments * @sg_segments_kobj_unregister: completion state */ @@ -42,6 +44,10 @@ struct nilfs_sysfs_dev_subgroups { struct kobject sg_segctor_kobj; struct completion sg_segctor_kobj_unregister; + /* /sys/fs///checkpoints */ + struct kobject sg_checkpoints_kobj; + struct completion sg_checkpoints_kobj_unregister; + /* /sys/fs///segments */ struct kobject sg_segments_kobj; struct completion sg_segments_kobj_unregister; @@ -69,6 +75,7 @@ struct nilfs_##name##_attr { \ NILFS_DEV_ATTR_STRUCT(dev); NILFS_DEV_ATTR_STRUCT(segments); +NILFS_DEV_ATTR_STRUCT(checkpoints); NILFS_DEV_ATTR_STRUCT(superblock); NILFS_DEV_ATTR_STRUCT(segctor); @@ -104,6 +111,11 @@ NILFS_DEV_ATTR_STRUCT(segctor); #define NILFS_SEGMENTS_RW_ATTR(name) \ NILFS_RW_ATTR(segs_info, name) +#define NILFS_CHECKPOINTS_RO_ATTR(name) \ + NILFS_RO_ATTR(checkpoints, name) +#define NILFS_CHECKPOINTS_RW_ATTR(name) \ + NILFS_RW_ATTR(checkpoints, name) + #define NILFS_SUPERBLOCK_RO_ATTR(name) \ NILFS_RO_ATTR(superblock, name) #define NILFS_SUPERBLOCK_RW_ATTR(name) \ @@ -122,6 +134,8 @@ NILFS_DEV_ATTR_STRUCT(segctor); (&nilfs_dev_attr_##name.attr) #define NILFS_SEGMENTS_ATTR_LIST(name) \ (&nilfs_segments_attr_##name.attr) +#define NILFS_CHECKPOINTS_ATTR_LIST(name) \ + (&nilfs_checkpoints_attr_##name.attr) #define NILFS_SUPERBLOCK_ATTR_LIST(name) \ (&nilfs_superblock_attr_##name.attr) #define NILFS_SEGCTOR_ATTR_LIST(name) \ -- cgit v1.2.3