diff options
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 8ff16a1eee6..13c3d82968a 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -158,8 +158,6 @@ int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages) return err; } -#define IOREMAP_MAX_ORDER (7 + PAGE_SHIFT) /* 128 pages */ - struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags, unsigned long start, unsigned long end) { @@ -334,9 +332,10 @@ void __vunmap(void *addr, int deallocate_pages) * @addr: memory base address * * Free the virtually contiguous memory area starting at @addr, as - * obtained from vmalloc(), vmalloc_32() or __vmalloc(). + * obtained from vmalloc(), vmalloc_32() or __vmalloc(). If @addr is + * NULL, no operation is performed. * - * May not be called in interrupt context. + * Must not be called in interrupt context. */ void vfree(void *addr) { @@ -354,7 +353,7 @@ EXPORT_SYMBOL(vfree); * Free the virtually contiguous memory area starting at @addr, * which was created from the page array passed to vmap(). * - * May not be called in interrupt context. + * Must not be called in interrupt context. */ void vunmap(void *addr) { |