} while (atomic_cmpxchg(&prz->buffer->size, old, new) != old);
}
-/* increase the size counter, retuning an error if it hits the max size */
-static inline ssize_t buffer_size_add_clamp(struct persistent_ram_zone *prz,
- size_t a)
-{
- size_t old;
- size_t new;
-
- do {
- old = atomic_read(&prz->buffer->size);
- new = old + a;
- if (new > prz->buffer_size)
- return -ENOMEM;
- } while (atomic_cmpxchg(&prz->buffer->size, old, new) != old);
-
- return 0;
-}
-
static void notrace persistent_ram_encode_rs8(struct persistent_ram_zone *prz,
uint8_t *data, size_t len, uint8_t *ecc)
{
c = prz->buffer_size;
}
- buffer_size_add_clamp(prz, c);
+ buffer_size_add(prz, c);
start = buffer_start_add(prz, c);