btrfs: raid56: avoid double for loop inside finish_rmw()

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We can easily calculate the stripe number and sector number inside the
stripe.  Thus there is not much need for a double for loop.

For the only case we want to skip the whole stripe, we can manually
increase @total_sector_nr.
This is not a recommended behavior, thus every time the iterator gets
modified there will be a comment along with an ASSERT() for it.

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

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Qu Wenruo 2022-06-02 15:51:18 +08:00 • committed by David Sterba

parent f31f09f6be

commit 3692004465

1 changed files with 55 additions and 42 deletions

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fs/btrfs/raid56.c

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