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| author |   Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com> | 2014-08-08 14:20:44 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 15:57:20 -0700 |
| commit | abc968dbf291955ac750ecf59e3baf2b529a8257 (patch) | |
| tree | 5dc6aae763f1b1734c899588cdbda207cf914abe /Documentation | |
| parent | nilfs2: add /sys/fs/nilfs2/<device>/superblock group (diff) | |
| download | linux-dev-abc968dbf291955ac750ecf59e3baf2b529a8257.tar.xz linux-dev-abc968dbf291955ac750ecf59e3baf2b529a8257.zip | |
nilfs2: add /sys/fs/nilfs2/<device>/segctor group
This patch adds creation of /sys/fs/nilfs2/<device>/segctor
group.
The segctor group contains attributes that describe
segctor thread activity details:
(1) last_pseg_block - show start block number of the latest segment.
(2) last_seg_sequence - show sequence value of the latest segment.
(3) last_seg_checkpoint - show checkpoint number of the latest segment.
(4) current_seg_sequence - show segment sequence counter.
(5) current_last_full_seg - show index number of the latest full segment.
(6) next_full_seg - show index number of the full segment index
to be used next.
(7) next_pseg_offset - show offset of next partial segment in
the current full segment.
(8) next_checkpoint - show next checkpoint number.
(9) last_seg_write_time - show write time of the last segment
in human-readable format.
(10) last_seg_write_time_secs - show write time of the last segment
in seconds.
(11) last_nongc_write_time - show write time of the last segment
not for cleaner operation in human-readable format.
(12) last_nongc_write_time_secs - show write time of the last segment
not for cleaner operation in seconds.
(13) dirty_data_blocks_count - show number of dirty data blocks.
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 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-nilfs2 | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-nilfs2 b/Documentation/ABI/testing/sysfs-fs-nilfs2 index e9b4c61aa88a..c9952f4071e7 100644 --- a/Documentation/ABI/testing/sysfs-fs-nilfs2 +++ b/Documentation/ABI/testing/sysfs-fs-nilfs2 @@ -89,3 +89,93 @@ Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> Description: Describe attributes of /sys/fs/nilfs2/<device>/superblock group. + +What: /sys/fs/nilfs2/<device>/segctor/last_pseg_block +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show start block number of the latest segment. + +What: /sys/fs/nilfs2/<device>/segctor/last_seg_sequence +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show sequence value of the latest segment. + +What: /sys/fs/nilfs2/<device>/segctor/last_seg_checkpoint +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show checkpoint number of the latest segment. + +What: /sys/fs/nilfs2/<device>/segctor/current_seg_sequence +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show segment sequence counter. + +What: /sys/fs/nilfs2/<device>/segctor/current_last_full_seg +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show index number of the latest full segment. + +What: /sys/fs/nilfs2/<device>/segctor/next_full_seg +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show index number of the full segment index + to be used next. + +What: /sys/fs/nilfs2/<device>/segctor/next_pseg_offset +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show offset of next partial segment in the current + full segment. + +What: /sys/fs/nilfs2/<device>/segctor/next_checkpoint +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show next checkpoint number. + +What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show write time of the last segment in + human-readable format. + +What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time_secs +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show write time of the last segment in seconds. + +What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show write time of the last segment not for cleaner + operation in human-readable format. + +What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time_secs +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show write time of the last segment not for cleaner + operation in seconds. + +What: /sys/fs/nilfs2/<device>/segctor/dirty_data_blocks_count +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Show number of dirty data blocks. + +What: /sys/fs/nilfs2/<device>/segctor/README +Date: April 2014 +Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com> +Description: + Describe attributes of /sys/fs/nilfs2/<device>/segctor + group. |