Revert "btrfs: turn fs_roots_radix in btrfs_fs_info into an XArray"
This reverts commit 48b36a60 . Revert the xarray conversion, there's a problem with potential sleep-inside-spinlock [1] when calling xa_insert that triggers GFP_NOFS allocation. The radix tree used the preloading mechanism to avoid sleeping but this is not available in xarray. Conversion from spin lock to mutex is possible but at time of rc6 is riskier than a clean revert. [1] https://lore.kernel.org/linux-btrfs/cover.1657097693.git.fdmanana@suse.com/ Reported-by:Filipe Manana <fdmanana@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
parent
b3a3b025
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