Wei Wang wrote:
ChangeLog:
v19->v20:
1) patch 1: xbitmap
- add __rcu to "void **slot";
- remove the exceptional path.
2) patch 3: xbitmap
- DeveloperNotes: add an item to comment that the current bit range
related APIs operating on extremely large ranges (e.g.
[0, ULONG_MAX)) will take too long time. This can be optimized in
the future.
- remove the exceptional path;
- remove xb_preload_and_set();
- reimplement xb_clear_bit_range to make its usage close to
bitmap_clear;
- rename xb_find_next_set_bit to xb_find_set, and re-implement it
in a style close to find_next_bit;
- rename xb_find_next_zero_bit to xb_find_clear, and re-implement
it in a stytle close to find_next_zero_bit;
- separate the implementation of xb_find_set and xb_find_clear for
the convenience of future updates.
Removing exceptional path made this patch easier to read.
But what I meant is
Can you eliminate exception path and fold all xbitmap patches into one, and
post only one xbitmap patch without virtio-balloon changes?
.
I still think we don't need xb_preload()/xb_preload_end().