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a5a7332a29
This patch adds creation of <snapshot> group for every mounted snapshot in /sys/fs/nilfs2/<device>/mounted_snapshots group. The group contains details about mounted snapshot: (1) inodes_count - show number of inodes for snapshot. (2) blocks_count - show number of blocks for snapshot. 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>
270 lines
7.8 KiB
Plaintext
270 lines
7.8 KiB
Plaintext
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What: /sys/fs/nilfs2/features/revision
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show current revision of NILFS file system driver.
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This value informs about file system revision that
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driver is ready to support.
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What: /sys/fs/nilfs2/features/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe attributes of /sys/fs/nilfs2/features group.
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What: /sys/fs/nilfs2/<device>/revision
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show NILFS file system revision on volume.
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This value informs about metadata structures'
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revision on mounted volume.
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What: /sys/fs/nilfs2/<device>/blocksize
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show volume's block size in bytes.
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What: /sys/fs/nilfs2/<device>/device_size
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show volume size in bytes.
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What: /sys/fs/nilfs2/<device>/free_blocks
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show count of free blocks on volume.
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What: /sys/fs/nilfs2/<device>/uuid
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show volume's UUID (Universally Unique Identifier).
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What: /sys/fs/nilfs2/<device>/volume_name
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show volume's label.
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What: /sys/fs/nilfs2/<device>/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe attributes of /sys/fs/nilfs2/<device> group.
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What: /sys/fs/nilfs2/<device>/superblock/sb_write_time
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show last write time of super block in human-readable
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format.
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What: /sys/fs/nilfs2/<device>/superblock/sb_write_time_secs
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show last write time of super block in seconds.
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What: /sys/fs/nilfs2/<device>/superblock/sb_write_count
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show current write count of super block.
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What: /sys/fs/nilfs2/<device>/superblock/sb_update_frequency
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show/Set interval of periodical update of superblock
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(in seconds).
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What: /sys/fs/nilfs2/<device>/superblock/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe attributes of /sys/fs/nilfs2/<device>/superblock
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group.
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What: /sys/fs/nilfs2/<device>/segctor/last_pseg_block
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show start block number of the latest segment.
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What: /sys/fs/nilfs2/<device>/segctor/last_seg_sequence
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show sequence value of the latest segment.
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What: /sys/fs/nilfs2/<device>/segctor/last_seg_checkpoint
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show checkpoint number of the latest segment.
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What: /sys/fs/nilfs2/<device>/segctor/current_seg_sequence
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show segment sequence counter.
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What: /sys/fs/nilfs2/<device>/segctor/current_last_full_seg
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show index number of the latest full segment.
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What: /sys/fs/nilfs2/<device>/segctor/next_full_seg
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show index number of the full segment index
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to be used next.
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What: /sys/fs/nilfs2/<device>/segctor/next_pseg_offset
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show offset of next partial segment in the current
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full segment.
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What: /sys/fs/nilfs2/<device>/segctor/next_checkpoint
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show next checkpoint number.
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What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show write time of the last segment in
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human-readable format.
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What: /sys/fs/nilfs2/<device>/segctor/last_seg_write_time_secs
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show write time of the last segment in seconds.
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What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show write time of the last segment not for cleaner
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operation in human-readable format.
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What: /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time_secs
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show write time of the last segment not for cleaner
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operation in seconds.
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What: /sys/fs/nilfs2/<device>/segctor/dirty_data_blocks_count
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show number of dirty data blocks.
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What: /sys/fs/nilfs2/<device>/segctor/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe attributes of /sys/fs/nilfs2/<device>/segctor
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group.
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What: /sys/fs/nilfs2/<device>/segments/segments_number
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show number of segments on a volume.
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What: /sys/fs/nilfs2/<device>/segments/blocks_per_segment
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show number of blocks in segment.
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What: /sys/fs/nilfs2/<device>/segments/clean_segments
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show count of clean segments.
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What: /sys/fs/nilfs2/<device>/segments/dirty_segments
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show count of dirty segments.
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What: /sys/fs/nilfs2/<device>/segments/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe attributes of /sys/fs/nilfs2/<device>/segments
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group.
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What: /sys/fs/nilfs2/<device>/checkpoints/checkpoints_number
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show number of checkpoints on volume.
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What: /sys/fs/nilfs2/<device>/checkpoints/snapshots_number
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show number of snapshots on volume.
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What: /sys/fs/nilfs2/<device>/checkpoints/last_seg_checkpoint
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show checkpoint number of the latest segment.
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What: /sys/fs/nilfs2/<device>/checkpoints/next_checkpoint
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show next checkpoint number.
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What: /sys/fs/nilfs2/<device>/checkpoints/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe attributes of /sys/fs/nilfs2/<device>/checkpoints
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group.
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What: /sys/fs/nilfs2/<device>/mounted_snapshots/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe content of /sys/fs/nilfs2/<device>/mounted_snapshots
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group.
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What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/inodes_count
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show number of inodes for snapshot.
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What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/blocks_count
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Show number of blocks for snapshot.
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What: /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/README
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Date: April 2014
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Contact: "Vyacheslav Dubeyko" <slava@dubeyko.com>
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Description:
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Describe attributes of /sys/fs/nilfs2/<device>/mounted_snapshots/<id>
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group.
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