NewDreamNetwork/ceph-client — comment on commit 971d9728082a09868963bbc043bce36947c1d10a
File:  line 0
By alexelder:

OK, I'm going to drop this patch. Entries on the unsafe list still need to
be protected by a spinlock *somewhere* because there are other
paths that allow them to be removed from whatever list they are on
and those are *not* protected by the inode mutex.

With respect to the other confusion about "ending up sleeping" I
neglected to update my patch summary--that was the original
motivation for this change but that particular problem has since
been fixed.