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[ Upstream commit 2c7d2a2302 ]
This adds the initial definition of the EXTENT_TREE_V2 incompat feature
flag. This also hides the support behind CONFIG_BTRFS_DEBUG.
THIS IS A IN DEVELOPMENT FORMAT CHANGE, DO NOT USE UNLESS YOU ARE A
DEVELOPER OR A TESTER.
The format is in flux and will be added in stages, any fs will need to
be re-made between updates to the format.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Stable-dep-of: 7081929ab257 ("btrfs: don't abort filesystem when attempting to snapshot deleted subvolume")
Signed-off-by: Sasha Levin <sashal@kernel.org>