On 08/03/2017 02:38 PM, Wei Wang wrote:
From: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> The eXtensible Bitmap is a sparse bitmap representation which is efficient for set bits which tend to cluster. It supports up to 'unsigned long' worth of bits, and this commit adds the bare bones -- xb_set_bit(), xb_clear_bit() and xb_test_bit(). Signed-off-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> Signed-off-by: Wei Wang <wei.w.wang@xxxxxxxxx> --- include/linux/radix-tree.h | 2 + include/linux/xbitmap.h | 49 ++++++++++++++++ lib/radix-tree.c | 139 ++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 188 insertions(+), 2 deletions(-) create mode 100644 include/linux/xbitmap.h diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index 3e57350..428ccc9 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h
Hi Matthew, Could you please help to upstream this patch? Best, Wei
