bcachefs: Fix sb-downgrade validation

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Superblock downgrade entries are only two byte aligned, but section
sizes are 8 byte aligned, which means we have to be careful about
overrun checks; an entry that crosses the end of the section is allowed
(and ignored) as long as it has zero errors.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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This commit is contained in:

Kent Overstreet 2024-05-25 12:38:53 -04:00

parent d509cadc3a

commit 9242a34b76

1 changed files with 10 additions and 3 deletions

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fs/bcachefs/sb-downgrade.c

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