diff options
| author | Huang Jianan <huangjianan@oppo.com> | 2021-03-17 11:54:48 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@redhat.com> | 2021-03-29 10:18:01 +0800 |
| commit | 30048cdac4b92f39ee50e2a1344f5899f8e70cb6 (patch) | |
| tree | 2a1ad11c589875102c58185462148fb4276d73c2 /fs/erofs/super.c | |
| parent | 648f2de053a882c87c05f0060f47d3b11841fdbe (diff) | |
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/super.c')
| -rw-r--r-- | fs/erofs/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/erofs/super.c b/fs/erofs/super.c index d5a6b9b888a5..0445d09b6331 100644 --- a/fs/erofs/super.c +++ b/fs/erofs/super.c @@ -200,6 +200,7 @@ static void erofs_default_options(struct erofs_fs_context *ctx) #ifdef CONFIG_EROFS_FS_ZIP ctx->cache_strategy = EROFS_ZIP_CACHE_READAROUND; ctx->max_sync_decompress_pages = 3; + ctx->readahead_sync_decompress = false; #endif #ifdef CONFIG_EROFS_FS_XATTR set_opt(ctx, XATTR_USER); |