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SubjectRe: [rfc][patch 3/3] xfs: use new vmap API
Looks good to me.

Nick Piggin wrote:
> Implement XFS's large buffer support with the new vmap APIs. See the vmap
> rewrite patch for some numbers.
>
> Signed-off-by: Nick Piggin <npiggin@suse.de>
> ---
>
> Index: linux-2.6/fs/xfs/linux-2.6/xfs_buf.c
> ===================================================================
> --- linux-2.6.orig/fs/xfs/linux-2.6/xfs_buf.c
> +++ linux-2.6/fs/xfs/linux-2.6/xfs_buf.c
> @@ -265,7 +265,7 @@ xfs_buf_free(
> uint i;
>
> if ((bp->b_flags & XBF_MAPPED) && (bp->b_page_count > 1))
> - vunmap(bp->b_addr - bp->b_offset);
> + vm_unmap_ram(bp->b_addr - bp->b_offset, bp->b_page_count);
>
> for (i = 0; i < bp->b_page_count; i++) {
> struct page *page = bp->b_pages[i];
> @@ -387,8 +387,8 @@ _xfs_buf_map_pages(
> bp->b_addr = page_address(bp->b_pages[0]) + bp->b_offset;
> bp->b_flags |= XBF_MAPPED;
> } else if (flags & XBF_MAPPED) {
> - bp->b_addr = vmap(bp->b_pages, bp->b_page_count,
> - VM_MAP, PAGE_KERNEL);
> + bp->b_addr = vm_map_ram(bp->b_pages, bp->b_page_count,
> + -1, PAGE_KERNEL);
> if (unlikely(bp->b_addr == NULL))
> return -ENOMEM;
> bp->b_addr += bp->b_offset;
>
>
>


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