search for: gfp_nofail

...probably is to query queue size in the beginning and make sure number of pages attached to a request are less then that. > > So my proposed solution is to turn fsvq->lock into a mutex; call > virtqueue_add_sgs() with whatever gfp flags are used to allocate the > request and add __GFP_NOFAIL for good measure. This means that the > request is guaranteed to use a single slot IF "indirect_desc" is on. > And there should be some way to verify from the virtiofs code that > this feature is indeed on, otherwise things can get messy (as noted > above). Sounds reasonable...