linux.git/drivers/md/md.c, branch v2.6.13

[PATCH] md: clear the 'recovery' flags when starting an md array.

2005-08-27T02:37:13+00:00

It's possible for this to still have flags in it and a previous instance
has been stopped, and that confused the new array using the same mddev.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: create a MODULE_ALIAS for md corresponding to its block major number.

2005-08-27T02:37:12+00:00

I just discovered this is needed for module auto-loading.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: make sure resync gets started when array starts.

2005-08-23T18:44:30+00:00

We weren't actually waking up the md thread after setting
MD_RECOVERY_NEEDED when assembling an array, so it is possible to lose a
race and not actually start resync.

So add a call to md_wakeup_thread, and while we are at it, remove all the
"if (mddev->thread)" guards as md_wake_thread does its own checking.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: make sure mddev->bitmap_offset gets cleared between array instantiations.

2005-08-18T19:53:57+00:00

... otherwise we might try to load a bitmap from an array which hasn't one.

The bug is that if you create an array with an internal bitmap, shut it down,
and then create an array with the same md device, the md drive will assume it
should have a bitmap too.  As the array can be created with a different md
device, it is mostly an inconvenience.  I'm pretty sure there is no risk of
data corruption.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: make sure md bitmap updates are flushed when array is stopped.

2005-08-04T20:00:54+00:00

The recent change to never ignore the bitmap, revealed that the bitmap isn't
begin flushed properly when an array is stopped.

We call bitmap_daemon_work three times as there is a three-stage pipeline for
flushing updates to the bitmap file.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: make 'md' and alias for 'md-mod'

2005-08-04T20:00:54+00:00

Until the bitmap code was added,

   modprobe md

would load the md module.  But now the md module is called 'md-mod', so we
really need an alias for backwards comparability.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: remove a stray debugging printk.

2005-08-04T20:00:54+00:00

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] clean up inline static vs static inline

2005-07-27T23:26:20+00:00

`gcc -W' likes to complain if the static keyword is not at the beginning of
the declaration.  This patch fixes all remaining occurrences of "inline
static" up with "static inline" in the entire kernel tree (140 occurrences in
47 files).

While making this change I came across a few lines with trailing whitespace
that I also fixed up, I have also added or removed a blank line or two here
and there, but there are no functional changes in the patch.

Signed-off-by: Jesper Juhl 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] md: bio leak fix

2005-06-28T21:53:41+00:00

insert a missing bio_put when writting the md superblock.

Without this we have a steady growth in the "bio" slab.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Cleanup patch for process freezing

2005-06-26T00:10:13+00:00

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 
Signed-off-by: Linus Torvalds