From: Wang Shilong <wshilong@xxxxxxx>
Flex_bg might be enabled, if this is enabled it makes
more sense to split based on this.
Signed-off-by: Wang Shilong <wshilong@xxxxxxx>
---
e2fsck/pass1.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index 6789b701..0044d7e8 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -2854,6 +2854,23 @@ static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
struct e2fsck_thread_info *infos = NULL;
int num_threads = 1;
errcode_t retval;
+ unsigned flexbg_size = 1;
+ int max_threads;
+
+ if (ext2fs_has_feature_flex_bg(global_ctx->fs->super))
+ flexbg_size = 1 << global_ctx->fs->super->s_log_groups_per_flex;
+
+ max_threads = global_ctx->fs->group_desc_count / flexbg_size;
+ if (max_threads == 0)
+ num_threads = 1;
+ else if (max_threads % num_threads) {
+ int times = max_threads / num_threads;
+
+ if (times == 0)
+ num_threads = 1;
+ else
+ num_threads = max_threads / times;
+ }
init_ext2_max_sizes();
retval = e2fsck_pass1_threads_start(&infos, num_threads, global_ctx);
--
2.25.2
