Request for inclusion on linux-4.14.y

Hello Greg,

Can you please consider including the following patches in the stable linux-4.14.y branch?

An NFS server accepts only a limited number of concurrent v4.1+ mounts. Once that limit is reached, on the affected client side, mount.nfs appears to hang to keep reissuing CREATE_SESSION calls until one of them succeeds. This is to bump the limit, also return smaller ca_maxrequests as the limit approaches instead of waiting till we have to fail CREATE_SESSION completely.

44d8660d3bb0("nfsd: increase DRC cache limit") de766e570413("nfsd: give out fewer session slots as limit approaches") c54f24e338ed("nfsd: fix performance-limiting session calculation")

Thanks, Qian Lu