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Pack per-CPU slabs up to the usable byte limit in percpu_tcmalloc_fuzz. - #1369
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Previously, `percpu_tcmalloc_fuzz` capped slab shift at 18 (256 KiB) and per-class capacities at `kMaxCapacity = 16`, leaving slabs under 4% full and never exercising the 512 KiB (`shift = 19`) `0xffff` reserved-index boundary. PiperOrigin-RevId: 998735588
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Pack per-CPU slabs up to the usable byte limit in percpu_tcmalloc_fuzz.
Previously,
percpu_tcmalloc_fuzzcapped slab shift at 18 (256 KiB) and per-class capacities atkMaxCapacity = 16, leaving slabs under 4% full and never exercising the 512 KiB (shift = 19)0xffffreserved-index boundary.