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authorAlexander Kuleshov <kuleshovmail@gmail.com>2015-11-05 18:46:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-05 19:34:48 -0800
commitf09f1243ca2d5d297881bf2c2148d9ab35314314 (patch)
tree169d7cdf9b74447019ca94e9db2172d97c3b0d6b /mm/percpu.c
parent5d57b0146aa942b939bbd77e09130270dc9b97d2 (diff)
downloadop-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>
Diffstat (limited to 'mm/percpu.c')
-rw-r--r--mm/percpu.c10
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++) {
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