btrfs: subpage: make btrfs_submit_compressed_write() compatible

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There is a WARN_ON() checking if @start is aligned to PAGE_SIZE, not
sectorsize, which will cause false alert for subpage.  Fix it to check
against sectorsize.

Furthermore:

- Use ASSERT() to do the check
  So that in the future we may skip the check for production build

- Also check alignment for @len

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

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Qu Wenruo 2021-09-27 15:22:00 +08:00 • committed by David Sterba

parent 4c162778d6

commit bbbff01a47

1 changed files with 2 additions and 1 deletions

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fs/btrfs/compression.c

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