b=1933

b=1933
The lib_*_alloc functions in portals were calling kmem_cache_alloc(GFP_NOFS)
instead of PORTAL_SLAB_ALLOC, which uses GFP_MEMALLOC.	These calls are _more_
likely to return NULL, because they won't use the emergency pool and can't
descend into the file system to free memory.

Unsurprisingly, these lib functions eventually failed to allocate at NCSA, so
this is not just a theoretical risk.