> On 23 October 2014 at 18:25 Ilya Dryomov <[email protected]> wrote: > > > On Thu, Oct 23, 2014 at 8:15 PM, Fabian Frederick <[email protected]> wrote: > > osdmap_epoch is redundant with reassert_epoch and unused. > > > > Signed-off-by: Fabian Frederick <[email protected]> > > --- > > net/ceph/osd_client.c | 2 -- > > 1 file changed, 2 deletions(-) > > > > diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c > > index f3fc54e..432bd75 100644 > > --- a/net/ceph/osd_client.c > > +++ b/net/ceph/osd_client.c > > @@ -1700,7 +1700,6 @@ static void handle_reply(struct ceph_osd_client *osdc, > > struct ceph_msg *msg, > > int err; > > u32 reassert_epoch; > > u64 reassert_version; > > - u32 osdmap_epoch; > > int already_completed; > > u32 bytes; > > unsigned int i; > > @@ -1725,7 +1724,6 @@ static void handle_reply(struct ceph_osd_client *osdc, > > struct ceph_msg *msg, > > result = ceph_decode_32(&p); > > reassert_epoch = ceph_decode_32(&p); > > reassert_version = ceph_decode_64(&p); > > - osdmap_epoch = ceph_decode_32(&p); > > > > /* lookup */ > > down_read(&osdc->map_sem); > > Hi Fabian, > > osdmap_epoch is useful for debugging, but this is wrong anyway - > ceph_decode_32() has side effects. Removing it and not adjusting *p > would make the whole thing blow up pretty fast.. > > Thanks, > > Ilya
Hi Ilya, osdmap_epoch generates a warning with -Wunused-but-set-variable. Maybe we could just do ceph_decode_32(&p) and remove it (it doesn't seem to add a warning) and/or add some comment ? Regards, Fabian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
