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| author | Chao Yu <yuchao0@huawei.com> | 2021-03-27 12:57:06 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-03-31 04:48:56 +0300 |
| commit | 5911d2d1d1a38b26585383478bd71d9254e48bdf (patch) | |
| tree | cbddc45a5994ba68705f931392f9d7051a3e9eff /Documentation/filesystems | |
| parent | 823d13e12b6cbaef2f6e5d63c648643e7bc094dd (diff) | |
| download | linux-5911d2d1d1a38b26585383478bd71d9254e48bdf.tar.xz | |
f2fs: introduce gc_merge mount option
In this patch, we will add two new mount options: "gc_merge" and
"nogc_merge", when background_gc is on, "gc_merge" option can be
set to let background GC thread to handle foreground GC requests,
it can eliminate the sluggish issue caused by slow foreground GC
operation when GC is triggered from a process with limited I/O
and CPU resources.
Original idea is from Xiang.
Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/f2fs.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 35ed01a5fbc9..63c0c49b726d 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -110,6 +110,12 @@ background_gc=%s Turn on/off cleaning operations, namely garbage on synchronous garbage collection running in background. Default value for this option is on. So garbage collection is on by default. +gc_merge When background_gc is on, this option can be enabled to + let background GC thread to handle foreground GC requests, + it can eliminate the sluggish issue caused by slow foreground + GC operation when GC is triggered from a process with limited + I/O and CPU resources. +nogc_merge Disable GC merge feature. disable_roll_forward Disable the roll-forward recovery routine norecovery Disable the roll-forward recovery routine, mounted read- only (i.e., -o ro,disable_roll_forward) |