Re: [RFC][PATCH] Possible data integrity problems in lots of filesystems?

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On Thu, Nov 25, 2010 at 06:49:09PM +1100, Nick Piggin wrote:
> Second is confusing sync and async inode metadata writeout
> Core code clears I_DIRTY_SYNC and I_DIRTY_DATASYNC before calling
> ->write_inode *regardless* of whether it is a for-integrity call or
> not. This means background writeback can clear it, and subsequent
> sync_inode_metadata or sync(2) call will skip the next ->write_inode
> completely.

Hmm, this also means that write_inode_now(sync=1) is buggy. It
needs to in fact call ->fsync -- which is a file operation
unfortunately, Christoph didn't you have some patches to move it
into an inode operation?

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