Revert "btrfs: turn name_cache radix tree into XArray in send_ctx"
This reverts commit 40769420 . 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
01cd3909
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