btrfs: add a comment explaining the data flush steps

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The data flushing steps are not obvious to people other than myself and
Chris.  Write a giant comment explaining the reasoning behind each flush
step for data as well as why it is in that particular order.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Josef Bacik 2020-07-21 10:22:34 -04:00 • committed by David Sterba

parent 5705674081

commit 1a7a92c8dd

1 changed files with 47 additions and 0 deletions

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fs/btrfs/space-info.c

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