On 2/7/20 9:18 AM, Martin KaFai Lau wrote:
It was reported that the max_t, ilog2, and roundup_pow_of_two macros have
exponential effects on the number of states in the sparse checker.
This patch breaks them up by calculating the "nbuckets" first so
that the "bucket_log" only needs to take ilog2().
Fixes: 6ac99e8f23d4 ("bpf: Introduce bpf sk local storage")
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
Suggested-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Martin KaFai Lau <kafai@xxxxxx>
Applied (& improved changelog to clarify it's not just sparse), thanks!
