[PATCH 1/4] erofs-utils: lib: only apply `fix_dedupedfrag` to the last segment

[Gao Xiang]

Only the segment containing the fragment needs to be fixed.

Fixes: b8cc6a36b560 ("erofs-utils: mkfs: implement multi-threaded fragments")
Signed-off-by: Gao Xiang <hsiangkao at linux.alibaba.com>
---
 lib/compress.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/compress.c b/lib/compress.c
index 5ecb9c8..4b966d8 100644
--- a/lib/compress.c
+++ b/lib/compress.c
@@ -729,6 +729,7 @@ fix_dedupedfrag:
 static int z_erofs_compress_one(struct z_erofs_compress_sctx *ctx)
 {
 	struct z_erofs_compress_ictx *ictx = ctx->ictx;
+	bool tsg = ctx->seg_idx + 1 >= ictx->seg_num;
 	struct z_erofs_extent_item *ei;
 
 	while (ctx->tail > ctx->head) {
@@ -753,7 +754,7 @@ static int z_erofs_compress_one(struct z_erofs_compress_sctx *ctx)
 		}
 
 		ctx->pivot = ei;
-		if (ictx->fix_dedupedfrag && !ictx->fragemitted &&
+		if (tsg && ictx->fix_dedupedfrag && !ictx->fragemitted &&
 		    z_erofs_fixup_deduped_fragment(ctx))
 			break;
 
-- 
2.43.5