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SubjectHow to explain to lock validator: locking inodes in inode order
Code does this:

/* Lock two items. See locking.txt */
static inline void kb0_lock2m(struct kb0_idata *m1, struct kb0_idata *m2)
if (m1->vi.i_ino > m2->vi.i_ino)
if (m1->vi.i_ino < m2->vi.i_ino)

Not sure how to explain to the lock validator that this code can never deadlock.

Note struct kb0_idata has an element of struct inode called vi.
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