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| author | Chao Yu <chao2.yu@samsung.com> | 2015-02-05 12:55:51 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-03-03 20:58:46 +0300 |
| commit | 8967215954a50947fbd9c2996232548bf6dd9062 (patch) | |
| tree | a8e3a164f9c3372fe476e23b09f5871379c31af0 /Documentation/filesystems | |
| parent | 429511cdf8b3a9b894b914f282a9293df405a449 (diff) | |
| download | linux-8967215954a50947fbd9c2996232548bf6dd9062.tar.xz | |
f2fs: add a mount option for rb-tree extent cache
This patch adds a mount option 'extent_cache' in f2fs.
It is try to use a rb-tree based extent cache to cache more mapping information
with less memory if this option is set, otherwise we will use the original one
extent info cache.
Suggested-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/f2fs.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index dac11d7fef27..48e2123c2582 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -140,6 +140,10 @@ nobarrier This option can be used if underlying storage guarantees fastboot This option is used when a system wants to reduce mount time as much as possible, even though normal performance can be sacrificed. +extent_cache Enable an extent cache based on rb-tree, it can cache + as many as extent which map between contiguous logical + address and physical address per inode, resulting in + increasing the cache hit ratio. ================================================================================ DEBUGFS ENTRIES |