Re: [PATCH v4 4/9] powerpc/vas: Return paste instruction failure if no active window

2022-02-22 Thread Haren Myneni
On Wed, 2022-02-23 at 17:05 +1000, Nicholas Piggin wrote: > Excerpts from Haren Myneni's message of February 20, 2022 5:58 am: > > The VAS window may not be active if the system looses credits and > > the NX generates page fault when it receives request on unmap > > paste address. > > > > The

Re: [PATCH v4 4/9] powerpc/vas: Return paste instruction failure if no active window

2022-02-22 Thread Nicholas Piggin
Excerpts from Haren Myneni's message of February 20, 2022 5:58 am: > > The VAS window may not be active if the system looses credits and > the NX generates page fault when it receives request on unmap > paste address. > > The kernel handles the fault by remap new paste address if the > window is