Re: [GIT PULL] inode->i_version rework for v4.16

Linus Torvalds writes: (Summary) They test the sign in 64 bits and return that boolean single-bit value. The _intent_ is to allow numbers up to 2**63 apart, but if somebody does that numbers up to 2**63 apart, but if somebody does that int cmp = inode_cmp_iversion(inode, old);
int cmp = inode_cmp_iversion(inode, old);

     if (cmp <

And what used to be a sign bit (in 64 bits) no longer exists, and the
above tests the *new* sign bit that is bit #31, not #63. Because if you
return the 64-bit difference, it will be trivially lost, and the code
will _look_ right, but not work right.