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authorVyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>2014-08-09 01:20:46 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-09 02:57:20 +0400
commitef43d5cd84b7d2ea09846de34e14be7d74be3e6f (patch)
tree67163715eb9012e931f9a7eefafe59a71ad20401 /fs/nilfs2/sysfs.h
parentabc968dbf291955ac750ecf59e3baf2b529a8257 (diff)
downloadlinux-ef43d5cd84b7d2ea09846de34e14be7d74be3e6f.tar.xz
nilfs2: add /sys/fs/nilfs2/<device>/segments group
This patch adds creation of /sys/fs/nilfs2/<device>/segments group. The segments group contains attributes that describe details about volume's segments: (1) segments_number - show number of segments on volume. (2) blocks_per_segment - show number of blocks in segment. (3) clean_segments - show count of clean segments. (4) dirty_segments - show count of dirty segments. 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/sysfs.h')
-rw-r--r--fs/nilfs2/sysfs.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/nilfs2/sysfs.h b/fs/nilfs2/sysfs.h
index ad4d5bcc16f5..228bdd14f945 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/<nilfs>/<device>/segctor
* @sg_segctor_kobj_unregister: completion state
+ * @sg_segments_kobj: /sys/fs/<nilfs>/<device>/segments
+ * @sg_segments_kobj_unregister: completion state
*/
struct nilfs_sysfs_dev_subgroups {
/* /sys/fs/<nilfs>/<device>/superblock */
@@ -39,6 +41,10 @@ struct nilfs_sysfs_dev_subgroups {
/* /sys/fs/<nilfs>/<device>/segctor */
struct kobject sg_segctor_kobj;
struct completion sg_segctor_kobj_unregister;
+
+ /* /sys/fs/<nilfs>/<device>/segments */
+ struct kobject sg_segments_kobj;
+ struct completion sg_segments_kobj_unregister;
};
#define NILFS_COMMON_ATTR_STRUCT(name) \
@@ -62,6 +68,7 @@ struct nilfs_##name##_attr { \
};
NILFS_DEV_ATTR_STRUCT(dev);
+NILFS_DEV_ATTR_STRUCT(segments);
NILFS_DEV_ATTR_STRUCT(superblock);
NILFS_DEV_ATTR_STRUCT(segctor);
@@ -92,6 +99,11 @@ NILFS_DEV_ATTR_STRUCT(segctor);
#define NILFS_DEV_RW_ATTR(name) \
NILFS_RW_ATTR(dev, name)
+#define NILFS_SEGMENTS_RO_ATTR(name) \
+ NILFS_RO_ATTR(segments, name)
+#define NILFS_SEGMENTS_RW_ATTR(name) \
+ NILFS_RW_ATTR(segs_info, name)
+
#define NILFS_SUPERBLOCK_RO_ATTR(name) \
NILFS_RO_ATTR(superblock, name)
#define NILFS_SUPERBLOCK_RW_ATTR(name) \
@@ -108,6 +120,8 @@ NILFS_DEV_ATTR_STRUCT(segctor);
(&nilfs_feature_attr_##name.attr)
#define NILFS_DEV_ATTR_LIST(name) \
(&nilfs_dev_attr_##name.attr)
+#define NILFS_SEGMENTS_ATTR_LIST(name) \
+ (&nilfs_segments_attr_##name.attr)
#define NILFS_SUPERBLOCK_ATTR_LIST(name) \
(&nilfs_superblock_attr_##name.attr)
#define NILFS_SEGCTOR_ATTR_LIST(name) \