In this patch, I adjust the seqence of if-conditions. It will assess the page->private situation. First, we make sure the page->private is not null. And then, we can do some with this page->private.
--- Signed-off-by: Liuwenyi <qingshen...@gmail.com> Cc: Chris Mason <chris.ma...@oracle.com> Cc: Yan Zheng <zheng....@oracle.com> Cc: Josef Bacik <jba...@redhat.com> Cc: Jens Axboe <jens.ax...@oracle.com> Cc: linux-btrfs@vger.kernel.org Cc: linux-ker...@vger.kernel.org --- fs/btrfs/disk-io.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 009e3bd..a300dca 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1407,11 +1407,11 @@ static int bio_ready_for_csum(struct bio *bio) bio_for_each_segment(bvec, bio, i) { page = bvec->bv_page; - if (page->private == EXTENT_PAGE_PRIVATE) { + if (!page->private) { length += bvec->bv_len; continue; } - if (!page->private) { + if (page->private == EXTENT_PAGE_PRIVATE) { length += bvec->bv_len; continue; } -- 1.6.6 --- Best Regards, Liuwenyi 2010-01-277 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html