From: Bobi Jam <bobijam.xu@xxxxxxxxx> When MDS fails to retrive the parent's fid, we'd handle it without crashing the NFS server. Signed-off-by: Bobi Jam <bobijam.xu@xxxxxxxxx> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3952 Reviewed-on: http://review.whamcloud.com/8459 Reviewed-by: Fan Yong <fan.yong@xxxxxxxxx> Reviewed-by: wangdi <di.wang@xxxxxxxxx> Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx> --- drivers/staging/lustre/lustre/llite/llite_nfs.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/llite_nfs.c b/drivers/staging/lustre/lustre/llite/llite_nfs.c index 61cb5ff..c1eef61 100644 --- a/drivers/staging/lustre/lustre/llite/llite_nfs.c +++ b/drivers/staging/lustre/lustre/llite/llite_nfs.c @@ -322,11 +322,14 @@ static struct dentry *ll_get_parent(struct dentry *dchild) return ERR_PTR(rc); } body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - LASSERT(body->valid & OBD_MD_FLID); - - CDEBUG(D_INFO, "parent for " DFID " is " DFID "\n", - PFID(ll_inode2fid(dir)), PFID(&body->fid1)); - + /* + * LU-3952: MDT may lost the FID of its parent, we should not crash + * the NFS server, ll_iget_for_nfs() will handle the error. + */ + if (body->valid & OBD_MD_FLID) { + CDEBUG(D_INFO, "parent for " DFID " is " DFID "\n", + PFID(ll_inode2fid(dir)), PFID(&body->fid1)); + } result = ll_iget_for_nfs(dir->i_sb, &body->fid1, NULL); ptlrpc_req_finished(req); -- 2.7.4 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
