diff options
Diffstat (limited to 'Documentation/filesystems/f2fs.txt')
-rw-r--r-- | Documentation/filesystems/f2fs.txt | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index 8fbd8b46ee34..dcf338e62b71 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt | |||
@@ -175,9 +175,9 @@ consists of multiple segments as described below. | |||
175 | align with the zone size <-| | 175 | align with the zone size <-| |
176 | |-> align with the segment size | 176 | |-> align with the segment size |
177 | _________________________________________________________________________ | 177 | _________________________________________________________________________ |
178 | | | | Node | Segment | Segment | | | 178 | | | | Segment | Node | Segment | | |
179 | | Superblock | Checkpoint | Address | Info. | Summary | Main | | 179 | | Superblock | Checkpoint | Info. | Address | Summary | Main | |
180 | | (SB) | (CP) | Table (NAT) | Table (SIT) | Area (SSA) | | | 180 | | (SB) | (CP) | Table (SIT) | Table (NAT) | Area (SSA) | | |
181 | |____________|_____2______|______N______|______N______|______N_____|__N___| | 181 | |____________|_____2______|______N______|______N______|______N_____|__N___| |
182 | . . | 182 | . . |
183 | . . | 183 | . . |
@@ -200,14 +200,14 @@ consists of multiple segments as described below. | |||
200 | : It contains file system information, bitmaps for valid NAT/SIT sets, orphan | 200 | : It contains file system information, bitmaps for valid NAT/SIT sets, orphan |
201 | inode lists, and summary entries of current active segments. | 201 | inode lists, and summary entries of current active segments. |
202 | 202 | ||
203 | - Node Address Table (NAT) | ||
204 | : It is composed of a block address table for all the node blocks stored in | ||
205 | Main area. | ||
206 | |||
207 | - Segment Information Table (SIT) | 203 | - Segment Information Table (SIT) |
208 | : It contains segment information such as valid block count and bitmap for the | 204 | : It contains segment information such as valid block count and bitmap for the |
209 | validity of all the blocks. | 205 | validity of all the blocks. |
210 | 206 | ||
207 | - Node Address Table (NAT) | ||
208 | : It is composed of a block address table for all the node blocks stored in | ||
209 | Main area. | ||
210 | |||
211 | - Segment Summary Area (SSA) | 211 | - Segment Summary Area (SSA) |
212 | : It contains summary entries which contains the owner information of all the | 212 | : It contains summary entries which contains the owner information of all the |
213 | data and node blocks stored in Main area. | 213 | data and node blocks stored in Main area. |
@@ -236,13 +236,13 @@ For file system consistency, each CP points to which NAT and SIT copies are | |||
236 | valid, as shown as below. | 236 | valid, as shown as below. |
237 | 237 | ||
238 | +--------+----------+---------+ | 238 | +--------+----------+---------+ |
239 | | CP | NAT | SIT | | 239 | | CP | SIT | NAT | |
240 | +--------+----------+---------+ | 240 | +--------+----------+---------+ |
241 | . . . . | 241 | . . . . |
242 | . . . . | 242 | . . . . |
243 | . . . . | 243 | . . . . |
244 | +-------+-------+--------+--------+--------+--------+ | 244 | +-------+-------+--------+--------+--------+--------+ |
245 | | CP #0 | CP #1 | NAT #0 | NAT #1 | SIT #0 | SIT #1 | | 245 | | CP #0 | CP #1 | SIT #0 | SIT #1 | NAT #0 | NAT #1 | |
246 | +-------+-------+--------+--------+--------+--------+ | 246 | +-------+-------+--------+--------+--------+--------+ |
247 | | ^ ^ | 247 | | ^ ^ |
248 | | | | | 248 | | | | |