Nick Piggin <npiggin@xxxxxxx> writes:
[haven't read everything, just commenting on something that caught my eye]
> +struct fsblock {
> + atomic_t count;
> + union {
> + struct {
> + unsigned long flags; /* XXX: flags could be int for better packing */
int is not supported by many architectures, but works on x86 at least.
Hmm, could define a macro DECLARE_ATOMIC_BITMAP(maxbit) that expands to the smallest
possible type for each architecture. And a couple of ugly casts for set_bit et.al.
but those could be also hidden in macros. Should be relatively easy to do.
-Andi
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