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Date:	Thu, 16 Sep 2010 18:13:21 GMT
Subject: [Bug 16312] WARNING: at fs/fs-writeback.c:1127 __mark_inode_dirty

--- Comment #30 from Jan Kara <>  2010-09-16 18:13:21 ---
OK, Tejun, I finally read the code. So you are right that the patch doesn't
solve the race. The race seems to be in block/genhd.c:add_disk(). Once we call
register_disk(), device can be successfully opened (get_gendisk() from
blkdev_open() will succeed as soon as disk's kobject exists). But until we call
bdi_register_dev(), backing dev isn't properly initialized and thus can see the
warning. This also explains why Larry is able to see the warning even with your

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