diff options
| author | Liao Yuanhong <liaoyuanhong@vivo.com> | 2024-07-15 20:34:51 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2024-08-05 20:18:35 +0000 |
| commit | 8444ce524947daf441546b5b3a0c418706dade35 (patch) | |
| tree | aa6df60e452d1143212db34287bdeac3582d1948 /fs/f2fs/f2fs.h | |
| parent | 50438dbc483ca6a133d2bce9d5d6747bcee38371 (diff) | |
f2fs: add write priority option based on zone UFS
Currently, we are using a mix of traditional UFS and zone UFS to support
some functionalities that cannot be achieved on zone UFS alone. However,
there are some issues with this approach. There exists a significant
performance difference between traditional UFS and zone UFS. Under normal
usage, we prioritize writes to zone UFS. However, in critical conditions
(such as when the entire UFS is almost full), we cannot determine whether
data will be written to traditional UFS or zone UFS. This can lead to
significant performance fluctuations, which is not conducive to
development and testing. To address this, we have added an option
zlu_io_enable under sys with the following three modes:
1) zlu_io_enable == 0:Normal mode, prioritize writing to zone UFS;
2) zlu_io_enable == 1:Zone UFS only mode, only allow writing to zone UFS;
3) zlu_io_enable == 2:Traditional UFS priority mode, prioritize writing to
traditional UFS.
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Signed-off-by: Wu Bo <bo.wu@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index ee030a0b093f..ebcb059bd702 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -134,6 +134,12 @@ typedef u32 nid_t; #define COMPRESS_EXT_NUM 16 +enum blkzone_allocation_policy { + BLKZONE_ALLOC_PRIOR_SEQ, /* Prioritize writing to sequential zones */ + BLKZONE_ALLOC_ONLY_SEQ, /* Only allow writing to sequential zones */ + BLKZONE_ALLOC_PRIOR_CONV, /* Prioritize writing to conventional zones */ +}; + /* * An implementation of an rwsem that is explicitly unfair to readers. This * prevents priority inversion when a low-priority reader acquires the read lock @@ -1559,6 +1565,8 @@ struct f2fs_sb_info { #ifdef CONFIG_BLK_DEV_ZONED unsigned int blocks_per_blkz; /* F2FS blocks per zone */ unsigned int max_open_zones; /* max open zone resources of the zoned device */ + /* For adjust the priority writing position of data in zone UFS */ + unsigned int blkzone_alloc_policy; #endif /* for node-related operations */ |