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Btrfs: don't loop in allocator for space cache
The space cache needs to have contiguous allocations, and the allocator tries to make allocations by reducing the amount of bytes requested and re-searching. But this just makes us waste time when we are very fragmented, so if we can't find our space just exit, don't bother trying to search again. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Chris Mason <clm@fb.com>
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@ -7337,7 +7337,7 @@ int btrfs_reserve_extent(struct btrfs_root *root,
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u64 empty_size, u64 hint_byte,
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struct btrfs_key *ins, int is_data, int delalloc)
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{
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bool final_tried = false;
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bool final_tried = num_bytes == min_alloc_size;
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u64 flags;
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int ret;
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