From 9971a741c5f44fd72e664c35be9bc6fedb8a3498 Mon Sep 17 00:00:00 2001 From: Boris Burkov Date: Tue, 27 Sep 2022 09:30:39 -0700 Subject: btrfs: send: allow protocol version 3 with CONFIG_BTRFS_DEBUG We haven't finalized send stream v3 yet, so gate the send stream version behind CONFIG_BTRFS_DEBUG as we want some way to test it. The original verity send did not check the protocol version, so add that actual protection as well. Reviewed-by: Anand Jain Signed-off-by: Boris Burkov Signed-off-by: David Sterba --- fs/btrfs/send.c | 2 +- fs/btrfs/send.h | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 4ef4167072b8..178347666235 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -6469,7 +6469,7 @@ static int finish_inode_if_needed(struct send_ctx *sctx, int at_end) if (ret < 0) goto out; } - if (sctx->cur_inode_needs_verity) { + if (sctx->proto >= 3 && sctx->cur_inode_needs_verity) { ret = process_verity(sctx); if (ret < 0) goto out; diff --git a/fs/btrfs/send.h b/fs/btrfs/send.h index 0a4537775e0c..f7585cfa7e52 100644 --- a/fs/btrfs/send.h +++ b/fs/btrfs/send.h @@ -10,7 +10,12 @@ #include #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream" +/* Conditional support for the upcoming protocol version. */ +#ifdef CONFIG_BTRFS_DEBUG +#define BTRFS_SEND_STREAM_VERSION 3 +#else #define BTRFS_SEND_STREAM_VERSION 2 +#endif /* * In send stream v1, no command is larger than 64K. In send stream v2, no limit -- cgit v1.2.1