On Wed, May 28, 2014 at 01:19:16PM +0800, Gu Zheng wrote: > Hi all, > When running the latest Linus' tree, the following possible deadlock warning > occurs.
false positive. There isn't a deadlock between inode locks on different filesystems. i.e. there is no dependency between shmem inodes and xfs inodes, nor on their security contexts. Nor can you take a page fault on a directory inode, which is the XFS inode lock class it's complaining about. Fundamentally, the problem here is shmem instantiating a new inode with the mmap_sem held. That's just plain wrong... Cheers, Dave. -- Dave Chinner da...@fromorbit.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
