diff options
| -rw-r--r-- | drivers/staging/lustre/lustre/mdc/mdc_locks.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c index 288a41ec60c9..1336d4750c37 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c @@ -1061,7 +1061,20 @@ int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it, fid_build_reg_res_name(fid, &res_id); switch (it->it_op) { case IT_GETATTR: - policy.l_inodebits.bits = MDS_INODELOCK_UPDATE; + /* File attributes are held under multiple bits: + * nlink is under lookup lock, size and times are + * under UPDATE lock and recently we've also got + * a separate permissions lock for owner/group/acl that + * were protected by lookup lock before. + * Getattr must provide all of that information, + * so we need to ensure we have all of those locks. + * Unfortunately, if the bits are split across multiple + * locks, there's no easy way to match all of them here, + * so an extra RPC would be performed to fetch all + * of those bits at once for now. */ + policy.l_inodebits.bits = MDS_INODELOCK_UPDATE | + MDS_INODELOCK_LOOKUP | + MDS_INODELOCK_PERM; break; case IT_LAYOUT: policy.l_inodebits.bits = MDS_INODELOCK_LAYOUT; @@ -1070,6 +1083,7 @@ int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it, policy.l_inodebits.bits = MDS_INODELOCK_LOOKUP; break; } + mode = ldlm_lock_match(exp->exp_obd->obd_namespace, LDLM_FL_BLOCK_GRANTED, &res_id, LDLM_IBITS, &policy, |