bcachefs: Annotate struct bucket_gens with __counted_by()

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Add the __counted_by compiler attribute to the flexible array member b
to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Use struct_size() to calculate the number of bytes to be allocated.

Update bucket_gens->nbuckets and bucket_gens->nbuckets_minus_first when
resizing.

Compile-tested only.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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Thorsten Blum 2024-10-26 17:47:04 +02:00 • committed by Kent Overstreet

parent ac9826f147

commit 901ff6555b

2 changed files with 9 additions and 6 deletions

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13

fs/bcachefs/buckets.c

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2

fs/bcachefs/buckets_types.h

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