From: Anand Jain <anand.jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Cc: wqu@suse.com
Subject: [PATCH 1/3] btrfs: define SUPER_FLAG_METADUMP_V2
Date: Tue, 9 Jan 2018 09:05:41 +0800 [thread overview]
Message-ID: <20180109010543.16053-2-anand.jain@oracle.com> (raw)
In-Reply-To: <20180109010543.16053-1-anand.jain@oracle.com>
btrfs-progs uses super flag bit BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34).
So just define that in kernel so that we know its been used.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
fs/btrfs/disk-io.c | 3 ++-
include/uapi/linux/btrfs_tree.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index a69e5944dc08..7cd4935f690f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -61,7 +61,8 @@
BTRFS_HEADER_FLAG_RELOC |\
BTRFS_SUPER_FLAG_ERROR |\
BTRFS_SUPER_FLAG_SEEDING |\
- BTRFS_SUPER_FLAG_METADUMP)
+ BTRFS_SUPER_FLAG_METADUMP |\
+ BTRFS_SUPER_FLAG_METADUMP_V2)
static const struct extent_io_ops btree_extent_io_ops;
static void end_workqueue_fn(struct btrfs_work *work);
diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h
index 6d6e5da51527..38ab0e06259a 100644
--- a/include/uapi/linux/btrfs_tree.h
+++ b/include/uapi/linux/btrfs_tree.h
@@ -456,6 +456,7 @@ struct btrfs_free_space_header {
#define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32)
#define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33)
+#define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34)
/*
--
2.15.0
next prev parent reply other threads:[~2018-01-09 1:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-09 1:05 [PATCH 0/3] Add missing flags in the kernel Anand Jain
2018-01-09 1:05 ` Anand Jain [this message]
2018-01-09 16:53 ` [PATCH 1/3] btrfs: define SUPER_FLAG_METADUMP_V2 David Sterba
2018-01-09 1:05 ` [PATCH 2/3] btrfs: add support for SUPER_FLAG_CHANGING_FSID in btrfs.ko Anand Jain
2018-01-09 16:58 ` David Sterba
2018-01-09 1:05 ` [PATCH 3/3] btrfs: fail mount when sb flag is not in BTRFS_SUPER_FLAG_SUPP Anand Jain
2018-01-09 16:57 ` David Sterba
2018-01-09 2:32 ` [PATCH V4 0/3] Add missing flags in the kernel Anand Jain
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