xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: do not use AT_SSR mode in FG_GC & high urgent BG_GC

Browse Source 
AT_SSR mode is introduced by age threshold based GC for better
hot/cold data seperation and avoiding free segment cost. However,
LFS write mode is preferred in the scenario of foreground or high
urgent GC, which should be finished ASAP. Let's only use AT_SSR
in background GC and not high urgent GC modes.

Signed-off-by: Weichao Guo <guoweichao@oppo.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Weichao Guo
2021-03-17 17:27:23 +08:00
committed by Jaegeuk Kim
parent 48b532703f
commit f7dca8471d
2 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/f2fs/segment.c
View File

@@ -3263,7 +3263,9 @@ static int __get_segment_type_6(struct f2fs_io_info *fio)
struct inode *inode = fio->page->mapping->host;
if (is_cold_data(fio->page)) {
if (fio->sbi->am.atgc_enabled)
if (fio->sbi->am.atgc_enabled &&
(fio->io_type == FS_DATA_IO) &&
(fio->sbi->gc_mode != GC_URGENT_HIGH))
return CURSEG_ALL_DATA_ATGC;
else
return CURSEG_COLD_DATA;