On Wed, 7 Aug 2013 17:21:32 -0400 Ed Cashin <ecas...@coraid.com> wrote:
> > What are the end-user-visible effects of the problem which is being > > fixed? Please always include this info when fixing bugs so that others > > can work out what kernel version(s) need the patch. > > > Sorry. I tried to cover that but maybe should have separated it more clearly > from the running text. > > The patch changes the current behavior encountered with direct I/O and aoe: > > aoe can BUG when direct I/O used > > ... to a new behavior: > > aoe does not BUG when direct I/O is used > > And the user will never know that instead aoe is manipulating the _count of > the head page, even though that's what's happening with this patch applied. > > (The user-visible effects that motivated the older patch that added the BUG > to aoe when page tails are used for block I/O was a VM_BUG_ON that occurred > when the aoe driver manipulated the _count of a compound page tail.) OK, I added "Fix a BUG which can trigger when direct-IO is used with AOE". Which kernel versions are affected? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
