]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/commit
Drivers: hv: hv_balloon: eliminate jumps in piecewiese linear floor function
authorVitaly Kuznetsov <vkuznets@redhat.com>
Fri, 27 Mar 2015 16:10:12 +0000 (09:10 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 3 Apr 2015 14:18:02 +0000 (16:18 +0200)
commit7fb0e1a65075a871c58cbcf8c877d1f9ae5cd83c
tree4aa484c54f35be2d39f46243babe5e03da4a93e0
parentd6cbd2c3a3db437708520c66f285c69ef028ac1f
Drivers: hv: hv_balloon: eliminate jumps in piecewiese linear floor function

Commit 79208c57da53 ("Drivers: hv: hv_balloon: Make adjustments in computing
the floor") was inacurate as it introduced a jump in our piecewiese linear
'floor' function:

At 2048MB we have:
Left limit:
104 + 2048/8 = 360
Right limit:
256 + 2048/16 = 384 (so the right value is 232)

We now have to make an adjustment at 8192 boundary:
232 + 8192/16 = 744
512 + 8192/32 = 768 (so the right value is 488)

Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hv/hv_balloon.c