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| author | Alexander Kuleshov <kuleshovmail@gmail.com> | 2015-11-05 18:46:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | f09f1243ca2d5d297881bf2c2148d9ab35314314 (patch) | |
| tree | 169d7cdf9b74447019ca94e9db2172d97c3b0d6b | |
| parent | 5d57b0146aa942b939bbd77e09130270dc9b97d2 (diff) | |
| download | op-kernel-dev-f09f1243ca2d5d297881bf2c2148d9ab35314314.zip op-kernel-dev-f09f1243ca2d5d297881bf2c2148d9ab35314314.tar.gz | |
mm/percpu: use offset_in_page macro
linux/mm.h provides offset_in_page() macro. Let's use already predefined
macro instead of (addr & ~PAGE_MASK).
Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/percpu.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index a63b4d8..8a943b9 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -1554,12 +1554,12 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, PCPU_SETUP_BUG_ON(ai->nr_groups <= 0); #ifdef CONFIG_SMP PCPU_SETUP_BUG_ON(!ai->static_size); - PCPU_SETUP_BUG_ON((unsigned long)__per_cpu_start & ~PAGE_MASK); + PCPU_SETUP_BUG_ON(offset_in_page(__per_cpu_start)); #endif PCPU_SETUP_BUG_ON(!base_addr); - PCPU_SETUP_BUG_ON((unsigned long)base_addr & ~PAGE_MASK); + PCPU_SETUP_BUG_ON(offset_in_page(base_addr)); PCPU_SETUP_BUG_ON(ai->unit_size < size_sum); - PCPU_SETUP_BUG_ON(ai->unit_size & ~PAGE_MASK); + 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(pcpu_verify_alloc_info(ai) < 0); @@ -1806,7 +1806,7 @@ static struct pcpu_alloc_info * __init pcpu_build_alloc_info( alloc_size = roundup(min_unit_size, atom_size); upa = alloc_size / min_unit_size; - while (alloc_size % upa || ((alloc_size / upa) & ~PAGE_MASK)) + while (alloc_size % upa || (offset_in_page(alloc_size / upa))) upa--; max_upa = upa; @@ -1838,7 +1838,7 @@ static struct pcpu_alloc_info * __init pcpu_build_alloc_info( for (upa = max_upa; upa; upa--) { int allocs = 0, wasted = 0; - if (alloc_size % upa || ((alloc_size / upa) & ~PAGE_MASK)) + if (alloc_size % upa || (offset_in_page(alloc_size / upa))) continue; for (group = 0; group < nr_groups; group++) { |
