Add new type of vm_area intented to be used for mappings created by dma-mapping framework. Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> Reviewed-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- include/linux/vmalloc.h | 1 + mm/vmalloc.c | 3 +++ 2 files changed, 4 insertions(+), 0 deletions(-) diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 2e28f4d..e725b7b 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -14,6 +14,7 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */ #define VM_UNLIST 0x00000020 /* vm_struct is not listed in vmlist */ +#define VM_DMA 0x00000040 /* used by dma-mapping framework */ /* bits [20..32] reserved for arch specific ioremap internals */ /* diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 11308f0..e04d59b 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2575,6 +2575,9 @@ static int s_show(struct seq_file *m, void *p) if (v->flags & VM_IOREMAP) seq_printf(m, " ioremap"); + if (v->flags & VM_DMA) + seq_printf(m, " dma"); + if (v->flags & VM_ALLOC) seq_printf(m, " vmalloc"); -- 1.7.1.569.g6f426 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>