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* Andrew Morton <akpm@osdl.org> wrote: > > Revert bd_mount_mutex back to a semaphore so that xfs_freeze -f > > /mnt/newtest; xfs_freeze -u /mnt/newtest works safely and doesn't > > produce lockdep warnings. > > Sad. The alternative would be to implement > mutex_unlock_dont_warn_if_a_different_task_did_it(). Ingo? Possible? i'd like to avoid it as much as i'd like to avoid having to add spin_unlock_dont_warn_if_a_different_task_did_it(). Unlocking by a different task is usually a sign of messy locking and bugs lurking. Is it really true that XFS's use of bd_mount_mutex is safe and justified? Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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