diff options
| author | Huang Jianan <huangjianan@oppo.com> | 2021-03-17 06:54:48 +0300 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@redhat.com> | 2021-03-29 05:18:01 +0300 |
| commit | 30048cdac4b92f39ee50e2a1344f5899f8e70cb6 (patch) | |
| tree | 2a1ad11c589875102c58185462148fb4276d73c2 /fs/erofs/internal.h | |
| parent | 648f2de053a882c87c05f0060f47d3b11841fdbe (diff) | |
| download | linux-30048cdac4b92f39ee50e2a1344f5899f8e70cb6.tar.xz | |
erofs: use sync decompression for atomic contexts only
Sync decompression was introduced to get rid of additional kworker
scheduling overhead. But there is no such overhead in non-atomic
contexts. Therefore, it should be better to turn off sync decompression
to avoid the current thread waiting in z_erofs_runqueue.
Link: https://lore.kernel.org/r/20210317035448.13921-3-huangjianan@oppo.com
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Diffstat (limited to 'fs/erofs/internal.h')
| -rw-r--r-- | fs/erofs/internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 351dae524a0c..30e63b73a675 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -50,6 +50,8 @@ struct erofs_fs_context { #ifdef CONFIG_EROFS_FS_ZIP /* current strategy of how to use managed cache */ unsigned char cache_strategy; + /* strategy of sync decompression (false - auto, true - force on) */ + bool readahead_sync_decompress; /* threshold for decompression synchronously */ unsigned int max_sync_decompress_pages; |