Due to an attempt to check two conditions at once in a macro not designed
as such, the assertion would always evaluate to true.
#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
const TYPE __left = (TYPE)(LEFT); \
const TYPE __right = (TYPE)(RIGHT); \
if (!(__left OP __right)) \
assfail3(#LEFT " " #OP " " #RIGHT, \
(uintmax_t)__left, #OP, (uintmax_t)__right, \
__FILE__, __LINE__); \
_NOTE(CONSTCOND) } while (0)
#define ASSERT3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
Mean that we compared:
left = (type == ZIO_TYPE_FREE || psize)
OP = "<="
right = (SPA_MAXBLOCKSIZE)
If the type was not FREE, 0 is less than SPA_MAXBLOCKSIZE (16MB)
If the type is ZIO_TYPE_FREE, 1 is less than SPA_MAXBLOCKSIZE
The constraint on psize (physical size of the FREE operation) is never
checked against SPA_MAXBLOCKSIZE
Reported by: Ka Ho Ng <khng300@gmail.com>
Reviewed by: kevans
MFC after: 2 weeks
Sponsored by: Klara Systems
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