Qu Wenruo 381b9b4c9c btrfs: use integrated bitmaps for scrub_parity::dbitmap and ebitmap ...

Previously we use "unsigned long *" for those two bitmaps.

But since we only support fixed stripe length (64KiB, already checked in
tree-checker), "unsigned long *" is really a waste of memory, while we
can just use "unsigned long".

This saves us 8 bytes in total for scrub_parity.

To be extra safe, add an ASSERT() making sure calclulated @nsectors is
always smaller than BITS_PER_LONG.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

2022-07-25 17:44:34 +02:00

119 KiB

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