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authorBoris Burkov <boris@bur.io>2022-09-27 18:30:39 +0200
committerDavid Sterba <dsterba@suse.com>2022-10-11 14:46:55 +0200
commit9971a741c5f44fd72e664c35be9bc6fedb8a3498 (patch)
treed338dae0e361b89123a5f29161eb685e18ad9b3a /fs/btrfs/send.h
parentbtrfs: add missing path cache update during fiemap (diff)
downloadlinux-9971a741c5f44fd72e664c35be9bc6fedb8a3498.tar.xz
linux-9971a741c5f44fd72e664c35be9bc6fedb8a3498.zip
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 <anand.jain@oracle.com> Signed-off-by: Boris Burkov <boris@bur.io> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/send.h')
-rw-r--r--fs/btrfs/send.h5
1 files changed, 5 insertions, 0 deletions
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 <linux/types.h>
#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