On Mon, 17 Apr 2017, Paul E. McKenney wrote: > A group of Linux kernel hackers reported chasing a bug that resulted > from their assumption that SLAB_DESTROY_BY_RCU provided an existence > guarantee, that is, that no block from such a slab would be reallocated > during an RCU read-side critical section. Of course, that is not the > case. Instead, SLAB_DESTROY_BY_RCU only prevents freeing of an entire > slab of blocks. > > However, there is a phrase for this, namely "type safety". This commit > therefore renames SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU in order > to avoid future instances of this sort of confusion. > > Signed-off-by: Paul E. McKenney <paul...@linux.vnet.ibm.com> > Cc: Christoph Lameter <c...@linux.com> > Cc: Pekka Enberg <penb...@kernel.org> > Cc: David Rientjes <rient...@google.com> > Cc: Joonsoo Kim <iamjoonsoo....@lge.com> > Cc: Andrew Morton <a...@linux-foundation.org> > Cc: <linux...@kvack.org> > Acked-by: Johannes Weiner <han...@cmpxchg.org> > Acked-by: Vlastimil Babka <vba...@suse.cz> > [ paulmck: Add comments mentioning the old name, as requested by Eric > Dumazet, in order to help people familiar with the old name find > the new one. ]
Acked-by: David Rientjes <rient...@google.com>
