1. Establish a simple API for process freezing defined in linux/include/sched.h: frozen(process) Check for frozen process freezing(process) Check if a process is being frozen freeze(process) Tell a process to freeze (go to refrigerator) thaw_process(process) Restart process frozen_process(process) Process is frozen now 2. Remove all references to PF_FREEZE and PF_FROZEN from all kernel sources except sched.h 3. Fix numerous locations where try_to_freeze is manually done by a driver 4. Remove the argument that is no longer necessary from two function calls. 5. Some whitespace cleanup 6. Clear potential race in refrigerator (provides an open window of PF_FREEZE cleared before setting PF_FROZEN, recalc_sigpending does not check PF_FROZEN). This patch does not address the problem of freeze_processes() violating the rule that a task may only modify its own flags by setting PF_FREEZE. This is not clean in an SMP environment. freeze(process) is therefore not SMP safe! Signed-off-by: Christoph Lameter <christoph@lameter.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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README
linux-2.6 for H8/300 README Yoshinori Sato <ysato@users.sourceforge.jp> * Supported CPU H8/300H and H8S * Supported Target 1.simulator of GDB require patches. 2.AE 3068/AE 3069 more information MICROTRONIQUE <http://www.microtronique.com/> Akizuki Denshi Tsusho Ltd. <http://www.akizuki.ne.jp> (Japanese Only) 3.H8MAX see http://ip-sol.jp/h8max/ (Japanese Only) 4.EDOSK2674 see http://www.eu.renesas.com/products/mpumcu/tool/edk/support/edosk2674.html http://www.azpower.com/H8-uClinux/ * Toolchain Version gcc-3.1 or higher and patch see arch/h8300/tools_patch/README binutils-2.12 or higher gdb-5.2 or higher The environment that can compile a h8300-elf binary is necessary. * Userland Develop environment used h8300-elf toolchains. see http://www.uclinux.org/pub/uClinux/ports/h8/ * A few words of thanks Porting to H8/300 serieses is support of Information-technology Promotion Agency, Japan. I thank support. and All developer/user.