diff options
| -rw-r--r-- | mm/percpu.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index 29244fb076ba..3602d41a7dfe 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1598,6 +1598,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, PCPU_SETUP_BUG_ON(offset_in_page(ai->unit_size)); PCPU_SETUP_BUG_ON(ai->unit_size < PCPU_MIN_UNIT_SIZE); PCPU_SETUP_BUG_ON(ai->dyn_size < PERCPU_DYNAMIC_EARLY_SIZE); + PCPU_SETUP_BUG_ON(!ai->dyn_size); PCPU_SETUP_BUG_ON(pcpu_verify_alloc_info(ai) < 0); /* process group information and build config tables accordingly */ @@ -1700,14 +1701,12 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, schunk->free_size = dyn_size; dyn_size = 0; /* dynamic area covered */ } - schunk->contig_hint = schunk->free_size; + schunk->contig_hint = schunk->free_size; schunk->map[0] = 1; schunk->map[1] = ai->static_size; - schunk->map_used = 1; - if (schunk->free_size) - schunk->map[++schunk->map_used] = ai->static_size + schunk->free_size; - schunk->map[schunk->map_used] |= 1; + schunk->map[2] = (ai->static_size + schunk->free_size) | 1; + schunk->map_used = 2; schunk->has_reserved = true; /* init dynamic chunk if necessary */ |