kernel-ark/fs/jbd
Christoph Lameter 3e1d1d28d9 [PATCH] Cleanup patch for process freezing
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>
2005-06-25 17:10:13 -07:00
..
checkpoint.c [PATCH] ext3: fix list scanning in __cleanup_transaction 2005-06-02 15:12:29 -07:00
commit.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
journal.c [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
recovery.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
revoke.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
transaction.c [PATCH] jbd dirty buffer leak fix 2005-04-16 15:26:36 -07:00