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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-12-03 09:52:45 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-12-07 08:41:25 -0800 |
| commit | 10208567f11bd572331cbbcb9a89c61a143811a1 (patch) | |
| tree | 5dcbe4ab3295300d06b1bae47b31ebb40e5d5c20 /fs/f2fs/f2fs.h | |
| parent | ec2ddf499402a665d1f6f7f5ce1391100e54089e (diff) | |
| download | linux-stable-10208567f11bd572331cbbcb9a89c61a143811a1.tar.gz linux-stable-10208567f11bd572331cbbcb9a89c61a143811a1.tar.bz2 linux-stable-10208567f11bd572331cbbcb9a89c61a143811a1.zip | |
f2fs: introduce max_io_bytes, a sysfs entry, to limit bio size
This patch adds max_io_bytes to limit bio size when f2fs tries to merge
consecutive IOs. This can give a testing point to split out bios and check
end_io handles those bios correctly. This is used to capture a recent bug
on the decompression and fsverity flow.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 36090cd09011..594df6391390 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1446,6 +1446,7 @@ struct f2fs_sb_info { loff_t max_file_blocks; /* max block index of file */ int dir_level; /* directory level */ int readdir_ra; /* readahead inode in readdir */ + u64 max_io_bytes; /* max io bytes to merge IOs */ block_t user_block_count; /* # of user blocks */ block_t total_valid_block_count; /* # of valid blocks */ |