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| author | Huajun Li <huajun.li.lee@gmail.com> | 2012-12-31 13:59:04 +0800 |
|---|---|---|
| committer | Andreas Blaesius <skate4life@gmx.de> | 2016-06-05 21:19:52 +0200 |
| commit | cc19ed53e09511cced2f91b1a741ae2e15b35285 (patch) | |
| tree | 681a1d0542d0994a1fff08019cbbbe73d891d4e2 /Documentation/filesystems | |
| parent | 9b9a25fca54f9620f79a495dd7ee218fe92df146 (diff) | |
| download | kernel_samsung_espresso10-cc19ed53e09511cced2f91b1a741ae2e15b35285.zip kernel_samsung_espresso10-cc19ed53e09511cced2f91b1a741ae2e15b35285.tar.gz kernel_samsung_espresso10-cc19ed53e09511cced2f91b1a741ae2e15b35285.tar.bz2 | |
f2fs: update f2fs document to reflect SIT/NAT layout correctly
document to reflect the layout generated by mkfs.f2fs .
Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'Documentation/filesystems')
| -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 8fbd8b4..dcf338e 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -175,9 +175,9 @@ consists of multiple segments as described below. align with the zone size <-| |-> align with the segment size _________________________________________________________________________ - | | | Node | Segment | Segment | | - | Superblock | Checkpoint | Address | Info. | Summary | Main | - | (SB) | (CP) | Table (NAT) | Table (SIT) | Area (SSA) | | + | | | Segment | Node | Segment | | + | Superblock | Checkpoint | Info. | Address | Summary | Main | + | (SB) | (CP) | Table (SIT) | Table (NAT) | Area (SSA) | | |____________|_____2______|______N______|______N______|______N_____|__N___| . . . . @@ -200,14 +200,14 @@ consists of multiple segments as described below. : It contains file system information, bitmaps for valid NAT/SIT sets, orphan inode lists, and summary entries of current active segments. -- Node Address Table (NAT) - : It is composed of a block address table for all the node blocks stored in - Main area. - - Segment Information Table (SIT) : It contains segment information such as valid block count and bitmap for the validity of all the blocks. +- Node Address Table (NAT) + : It is composed of a block address table for all the node blocks stored in + Main area. + - Segment Summary Area (SSA) : It contains summary entries which contains the owner information of all the 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 valid, as shown as below. +--------+----------+---------+ - | CP | NAT | SIT | + | CP | SIT | NAT | +--------+----------+---------+ . . . . . . . . . . . . +-------+-------+--------+--------+--------+--------+ - | CP #0 | CP #1 | NAT #0 | NAT #1 | SIT #0 | SIT #1 | + | CP #0 | CP #1 | SIT #0 | SIT #1 | NAT #0 | NAT #1 | +-------+-------+--------+--------+--------+--------+ | ^ ^ | | | |