On 2011-08-31 14:19, J. Bruce Fields wrote: > On Wed, Aug 31, 2011 at 01:27:58PM -0700, Benny Halevy wrote: >> Don't we also need the following? >> >> As per RFC5661, skip zero seqid when wrapping around >> while updating a stateid. > > Yep, done: > > http://marc.info/?l=linux-nfs&m=131439774426154&w=2 yup, thanks! > > I need to send out my patches one at a time rather than fifteen at once > if I want people to read them.... My bad :-) Benny > > --b. > >> >> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxx> >> >> git diff --stat -p -M >> fs/nfsd/state.h | 5 ++++- >> 1 files changed, 4 insertions(+), 1 deletions(-) >> >> diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h >> index 77f98b8..7d18d3e 100644 >> --- a/fs/nfsd/state.h >> +++ b/fs/nfsd/state.h >> @@ -289,7 +289,10 @@ struct nfs4_client_reclaim { >> static inline void >> update_stateid(stateid_t *stateid) >> { >> - stateid->si_generation++; >> + u32 new = stateid->si_generation + 1; >> + if (new == 0) >> + new = 1; >> + stateid->si_generation = new; >> } >> >> /* A reasonable value for REPLAY_ISIZE was estimated as follows: >> >> On 2011-08-31 12:53, J. Bruce Fields wrote: >>> From: J. Bruce Fields <bfields@xxxxxxxxxx> >>> >>> Thanks to Casey for reminding me that 5661 gives a special meaning to a >>> value of 0 in the stateid's seqid field, so we should instead be >>> starting out stateid's with si_generation 1. >>> >>> Reported-by: Casey Bodley <cbodley@xxxxxxxxxxxxxx> >>> Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx> >>> --- >>> fs/nfsd/nfs4state.c | 6 +++--- >>> 1 files changed, 3 insertions(+), 3 deletions(-) >>> >>> diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c >>> index 49c3dd1..7caa812 100644 >>> --- a/fs/nfsd/nfs4state.c >>> +++ b/fs/nfsd/nfs4state.c >>> @@ -251,7 +251,7 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f >>> dp->dl_stateid.si_boot = boot_time; >>> dp->dl_stateid.si_stateownerid = current_delegid++; >>> dp->dl_stateid.si_fileid = 0; >>> - dp->dl_stateid.si_generation = 0; >>> + dp->dl_stateid.si_generation = 1; >>> fh_copy_shallow(&dp->dl_fh, ¤t_fh->fh_handle); >>> dp->dl_time = 0; >>> atomic_set(&dp->dl_count, 1); >>> @@ -2303,7 +2303,7 @@ init_stateid(struct nfs4_stateid *stp, struct nfs4_file *fp, struct nfsd4_open * >>> stp->st_stateid.si_boot = boot_time; >>> stp->st_stateid.si_stateownerid = oo->oo_owner.so_id; >>> stp->st_stateid.si_fileid = fp->fi_id; >>> - stp->st_stateid.si_generation = 0; >>> + stp->st_stateid.si_generation = 1; >>> stp->st_access_bmap = 0; >>> stp->st_deny_bmap = 0; >>> __set_bit(open->op_share_access & ~NFS4_SHARE_WANT_MASK, >>> @@ -3898,7 +3898,7 @@ alloc_init_lock_stateid(struct nfs4_lockowner *lo, struct nfs4_file *fp, struct >>> stp->st_stateid.si_boot = boot_time; >>> stp->st_stateid.si_stateownerid = lo->lo_owner.so_id; >>> stp->st_stateid.si_fileid = fp->fi_id; >>> - stp->st_stateid.si_generation = 0; >>> + stp->st_stateid.si_generation = 1; >>> stp->st_access_bmap = 0; >>> stp->st_deny_bmap = open_stp->st_deny_bmap; >>> stp->st_openstp = open_stp; > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
