CVS Update: xc (branch: trunk)

[Benjamin Herrenschmidt]

CVSROOT:	/cvs/xorg
Module name:	xc
Changes by:	benh at gabe.freedesktop.org	05/10/11 16:11:37

Log message:
  	* programs/Xserver/hw/xfree86/exa/exa.h:
  	* programs/Xserver/hw/xfree86/exa/exaoffscreen.c:
  	(ExaOffscreenValidate), (exaOffscreenAlloc), (exaOffscreenFree),
  	(exaOffscreenInit):
  	Fix a couple of bugs in the offscreen allocator. One mostly harmless
  	was causing our search loop for evictable blocks to possibly skip a
  	good candiate, and another was the allocator would occasionally use
  	area->offset as if it was the base of the pixmap, while for a pixmap
  	that is not in available state, it is not. This caused some funny
  	miscalculation leading to overlapping pixmaps and accesses beyond the
  	end of the framebuffer. To make things cleared, I renamed save_offset
  	to base_offset, made sure it's the one used everywhere in the
  	allocator, and only align "offset" for the client at the end of
  	exaOffscreenAlloc().

Modified files:
      ./:
        ChangeLog 
      xc/programs/Xserver/hw/xfree86/exa/:
        exaoffscreen.c exa.h 
  
  Revision      Changes    Path
  1.1422        +17 -0     xc/ChangeLog
  http://cvs.freedesktop.org/xorg/xc/ChangeLog
  1.9           +18 -16    xc/programs/Xserver/hw/xfree86/exa/exaoffscreen.c
  http://cvs.freedesktop.org/xorg/xc/programs/Xserver/hw/xfree86/exa/exaoffscreen.c
  1.8           +3 -3      xc/programs/Xserver/hw/xfree86/exa/exa.h
  http://cvs.freedesktop.org/xorg/xc/programs/Xserver/hw/xfree86/exa/exa.h