btrfs: Document logic regarding inode in async_cow_submit

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Add a comment explaining when ->inode could be NULL and why we always
perform the ->async_delalloc_pages modification.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Nikolay Borisov 2019-01-03 10:50:03 +02:00 • committed by David Sterba

parent a1d64ba609

commit 4546d17874

1 changed files with 6 additions and 0 deletions

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fs/btrfs/inode.c

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