btrfs: scrub: switch scrub_simple_mirror() to scrub_stripe infrastructure

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Switch scrub_simple_mirror() to the new scrub_stripe infrastructure.

Since scrub_simple_mirror() is the core part of scrub (only RAID56
P/Q stripes don't utilize it), we can get rid of a big chunk of code,
mostly scrub_extent(), scrub_sectors() and directly called functions.

There is a functionality change:

- Scrub speed throttle now only affects read on the scrubbing device
  Writes (for repair and replace), and reads from other mirrors won't
  be limited by the set limits.

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 2023-03-20 10:12:58 +08:00 • committed by David Sterba

parent 54765392a1

commit e02ee89baa

2 changed files with 29 additions and 474 deletions

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491

fs/btrfs/scrub.c

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10

fs/btrfs/scrub.h

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