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Subject[PATCH v2.1 00/17] abstract out the super block clean/dirty state

here is an updated sent of trivial patches which abstract out the super block
clean/dirty state. This is the same as v2, but it has 'sb_is_dirty()' renamed
to 'is_sb_dirty()'. The v2 patches were here:

This patchset introduces the following 3 new helper VFS functions:

* static inline void mark_sb_dirty(struct super_block *sb)
* static inline void mark_sb_clean(struct super_block *sb)
* static inline int is_sb_dirty(struct super_block *sb)

With these patches the whole Linux kernel tree has only 3 places where
'sb->s_dirt' is referred.

These patches were previously sent as part of periodic write-back optimization
series here:

Because of the overlap with Jens' "per-bdi write-back" work, I have to work
on top of Jens' patches. However, it would be easier for me if my preparation
"abstracting sb->s_dirt" patches were merged earlier, at 2.6.31 merge window.
I think they make sense in general. I would then continue working on the second
part separately.

The patches were made on top of the VFS tree:
git:// for-next

commit f932bb0daca28ffe69ec876043cac00bc9b50147
Author: Theodore Ts'o <>
Date: Tue May 12 07:37:56 2009 -0400

Fix nobh_truncate_page() to not pass stack garbage to get_block()

And they are also available at
git:// sb-helpers-v2


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