Qu Wenruo 9a9be5ec17 fs: btrfs: Crossport extent-io.[ch] from btrfs-progs ...

This brings the extent_io_tree infrastructure, with which we can finally
bring in proper btrfs_fs_info structure to ctree.h.

With read/write_extent_buffer() implemented we also backport
read/write_eb_member() to ctree.h.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>

2020-09-07 20:57:27 -04:00

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