perf record: Document --group option
[linux/fpc-iii.git] / Documentation / ABI / testing / sysfs-fs-nilfs2
blob304ba84a973a75f3253ece300a4dbc7850aee8fa
2 What:           /sys/fs/nilfs2/features/revision
3 Date:           April 2014
4 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
5 Description:
6                 Show current revision of NILFS file system driver.
7                 This value informs about file system revision that
8                 driver is ready to support.
10 What:           /sys/fs/nilfs2/features/README
11 Date:           April 2014
12 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
13 Description:
14                 Describe attributes of /sys/fs/nilfs2/features group.
16 What:           /sys/fs/nilfs2/<device>/revision
17 Date:           April 2014
18 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
19 Description:
20                 Show NILFS file system revision on volume.
21                 This value informs about metadata structures'
22                 revision on mounted volume.
24 What:           /sys/fs/nilfs2/<device>/blocksize
25 Date:           April 2014
26 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
27 Description:
28                 Show volume's block size in bytes.
30 What:           /sys/fs/nilfs2/<device>/device_size
31 Date:           April 2014
32 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
33 Description:
34                 Show volume size in bytes.
36 What:           /sys/fs/nilfs2/<device>/free_blocks
37 Date:           April 2014
38 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
39 Description:
40                 Show count of free blocks on volume.
42 What:           /sys/fs/nilfs2/<device>/uuid
43 Date:           April 2014
44 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
45 Description:
46                 Show volume's UUID (Universally Unique Identifier).
48 What:           /sys/fs/nilfs2/<device>/volume_name
49 Date:           April 2014
50 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
51 Description:
52                 Show volume's label.
54 What:           /sys/fs/nilfs2/<device>/README
55 Date:           April 2014
56 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
57 Description:
58                 Describe attributes of /sys/fs/nilfs2/<device> group.
60 What:           /sys/fs/nilfs2/<device>/superblock/sb_write_time
61 Date:           April 2014
62 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
63 Description:
64                 Show last write time of super block in human-readable
65                 format.
67 What:           /sys/fs/nilfs2/<device>/superblock/sb_write_time_secs
68 Date:           April 2014
69 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
70 Description:
71                 Show last write time of super block in seconds.
73 What:           /sys/fs/nilfs2/<device>/superblock/sb_write_count
74 Date:           April 2014
75 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
76 Description:
77                 Show current write count of super block.
79 What:           /sys/fs/nilfs2/<device>/superblock/sb_update_frequency
80 Date:           April 2014
81 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
82 Description:
83                 Show/Set interval of periodical update of superblock
84                 (in seconds).
86 What:           /sys/fs/nilfs2/<device>/superblock/README
87 Date:           April 2014
88 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
89 Description:
90                 Describe attributes of /sys/fs/nilfs2/<device>/superblock
91                 group.
93 What:           /sys/fs/nilfs2/<device>/segctor/last_pseg_block
94 Date:           April 2014
95 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
96 Description:
97                 Show start block number of the latest segment.
99 What:           /sys/fs/nilfs2/<device>/segctor/last_seg_sequence
100 Date:           April 2014
101 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
102 Description:
103                 Show sequence value of the latest segment.
105 What:           /sys/fs/nilfs2/<device>/segctor/last_seg_checkpoint
106 Date:           April 2014
107 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
108 Description:
109                 Show checkpoint number of the latest segment.
111 What:           /sys/fs/nilfs2/<device>/segctor/current_seg_sequence
112 Date:           April 2014
113 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
114 Description:
115                 Show segment sequence counter.
117 What:           /sys/fs/nilfs2/<device>/segctor/current_last_full_seg
118 Date:           April 2014
119 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
120 Description:
121                 Show index number of the latest full segment.
123 What:           /sys/fs/nilfs2/<device>/segctor/next_full_seg
124 Date:           April 2014
125 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
126 Description:
127                 Show index number of the full segment index
128                 to be used next.
130 What:           /sys/fs/nilfs2/<device>/segctor/next_pseg_offset
131 Date:           April 2014
132 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
133 Description:
134                 Show offset of next partial segment in the current
135                 full segment.
137 What:           /sys/fs/nilfs2/<device>/segctor/next_checkpoint
138 Date:           April 2014
139 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
140 Description:
141                 Show next checkpoint number.
143 What:           /sys/fs/nilfs2/<device>/segctor/last_seg_write_time
144 Date:           April 2014
145 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
146 Description:
147                 Show write time of the last segment in
148                 human-readable format.
150 What:           /sys/fs/nilfs2/<device>/segctor/last_seg_write_time_secs
151 Date:           April 2014
152 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
153 Description:
154                 Show write time of the last segment in seconds.
156 What:           /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time
157 Date:           April 2014
158 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
159 Description:
160                 Show write time of the last segment not for cleaner
161                 operation in human-readable format.
163 What:           /sys/fs/nilfs2/<device>/segctor/last_nongc_write_time_secs
164 Date:           April 2014
165 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
166 Description:
167                 Show write time of the last segment not for cleaner
168                 operation in seconds.
170 What:           /sys/fs/nilfs2/<device>/segctor/dirty_data_blocks_count
171 Date:           April 2014
172 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
173 Description:
174                 Show number of dirty data blocks.
176 What:           /sys/fs/nilfs2/<device>/segctor/README
177 Date:           April 2014
178 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
179 Description:
180                 Describe attributes of /sys/fs/nilfs2/<device>/segctor
181                 group.
183 What:           /sys/fs/nilfs2/<device>/segments/segments_number
184 Date:           April 2014
185 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
186 Description:
187                 Show number of segments on a volume.
189 What:           /sys/fs/nilfs2/<device>/segments/blocks_per_segment
190 Date:           April 2014
191 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
192 Description:
193                 Show number of blocks in segment.
195 What:           /sys/fs/nilfs2/<device>/segments/clean_segments
196 Date:           April 2014
197 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
198 Description:
199                 Show count of clean segments.
201 What:           /sys/fs/nilfs2/<device>/segments/dirty_segments
202 Date:           April 2014
203 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
204 Description:
205                 Show count of dirty segments.
207 What:           /sys/fs/nilfs2/<device>/segments/README
208 Date:           April 2014
209 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
210 Description:
211                 Describe attributes of /sys/fs/nilfs2/<device>/segments
212                 group.
214 What:           /sys/fs/nilfs2/<device>/checkpoints/checkpoints_number
215 Date:           April 2014
216 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
217 Description:
218                 Show number of checkpoints on volume.
220 What:           /sys/fs/nilfs2/<device>/checkpoints/snapshots_number
221 Date:           April 2014
222 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
223 Description:
224                 Show number of snapshots on volume.
226 What:           /sys/fs/nilfs2/<device>/checkpoints/last_seg_checkpoint
227 Date:           April 2014
228 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
229 Description:
230                 Show checkpoint number of the latest segment.
232 What:           /sys/fs/nilfs2/<device>/checkpoints/next_checkpoint
233 Date:           April 2014
234 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
235 Description:
236                 Show next checkpoint number.
238 What:           /sys/fs/nilfs2/<device>/checkpoints/README
239 Date:           April 2014
240 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
241 Description:
242                 Describe attributes of /sys/fs/nilfs2/<device>/checkpoints
243                 group.
245 What:           /sys/fs/nilfs2/<device>/mounted_snapshots/README
246 Date:           April 2014
247 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
248 Description:
249                 Describe content of /sys/fs/nilfs2/<device>/mounted_snapshots
250                 group.
252 What:           /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/inodes_count
253 Date:           April 2014
254 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
255 Description:
256                 Show number of inodes for snapshot.
258 What:           /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/blocks_count
259 Date:           April 2014
260 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
261 Description:
262                 Show number of blocks for snapshot.
264 What:           /sys/fs/nilfs2/<device>/mounted_snapshots/<id>/README
265 Date:           April 2014
266 Contact:        "Vyacheslav Dubeyko" <slava@dubeyko.com>
267 Description:
268                 Describe attributes of /sys/fs/nilfs2/<device>/mounted_snapshots/<id>
269                 group.