diff options
| author | Alexander Kuleshov <kuleshovmail@gmail.com> | 2015-11-05 18:46:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | 891c49abfb097bbd7024b4072dd1c8e1c995d3ec (patch) | |
| tree | b3ad290706925ee8c89b05d1657d442d59a1d1f4 /mm/vmalloc.c | |
| parent | 8fd9e4883a2b08c52ec00f3c214b45d096fc697a (diff) | |
mm/vmalloc: 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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index af3a519e40c2..9db9ef5e8481 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -358,7 +358,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size, struct vmap_area *first; BUG_ON(!size); - BUG_ON(size & ~PAGE_MASK); + BUG_ON(offset_in_page(size)); BUG_ON(!is_power_of_2(align)); va = kmalloc_node(sizeof(struct vmap_area), @@ -936,7 +936,7 @@ static void *vb_alloc(unsigned long size, gfp_t gfp_mask) void *vaddr = NULL; unsigned int order; - BUG_ON(size & ~PAGE_MASK); + BUG_ON(offset_in_page(size)); BUG_ON(size > PAGE_SIZE*VMAP_MAX_ALLOC); if (WARN_ON(size == 0)) { /* @@ -989,7 +989,7 @@ static void vb_free(const void *addr, unsigned long size) unsigned int order; struct vmap_block *vb; - BUG_ON(size & ~PAGE_MASK); + BUG_ON(offset_in_page(size)); BUG_ON(size > PAGE_SIZE*VMAP_MAX_ALLOC); flush_cache_vunmap((unsigned long)addr, (unsigned long)addr + size); @@ -1902,7 +1902,7 @@ static int aligned_vread(char *buf, char *addr, unsigned long count) while (count) { unsigned long offset, length; - offset = (unsigned long)addr & ~PAGE_MASK; + offset = offset_in_page(addr); length = PAGE_SIZE - offset; if (length > count) length = count; @@ -1941,7 +1941,7 @@ static int aligned_vwrite(char *buf, char *addr, unsigned long count) while (count) { unsigned long offset, length; - offset = (unsigned long)addr & ~PAGE_MASK; + offset = offset_in_page(addr); length = PAGE_SIZE - offset; if (length > count) length = count; @@ -2392,7 +2392,7 @@ struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, bool purged = false; /* verify parameters and allocate data structures */ - BUG_ON(align & ~PAGE_MASK || !is_power_of_2(align)); + BUG_ON(offset_in_page(align) || !is_power_of_2(align)); for (last_area = 0, area = 0; area < nr_vms; area++) { start = offsets[area]; end = start + sizes[area]; |