Re: [PATCH 23/24] powerpc/mm: Cleanup check for stack expansion

Le 25/07/2017 à 13:19, Michael Ellerman a écrit : LEROY Christophe writes: Michael Ellerman a écrit : LEROY Christophe writes: Benjamin Herrenschmidt a écrit : When hitting below a

Re: [PATCH 23/24] powerpc/mm: Cleanup check for stack expansion

LEROY Christophe writes: > Michael Ellerman a écrit : > >> LEROY Christophe writes: >> >>> Benjamin Herrenschmidt a écrit : >>> When hitting below a VM_GROWSDOWN vma (typically growing the

Re: [PATCH 23/24] powerpc/mm: Cleanup check for stack expansion

Michael Ellerman a écrit : LEROY Christophe writes: Benjamin Herrenschmidt a écrit : When hitting below a VM_GROWSDOWN vma (typically growing the stack), we check whether it's a valid stack-growing instruction and we

Re: [PATCH 23/24] powerpc/mm: Cleanup check for stack expansion

LEROY Christophe writes: > Benjamin Herrenschmidt a écrit : > >> When hitting below a VM_GROWSDOWN vma (typically growing the stack), >> we check whether it's a valid stack-growing instruction and we >> check the distance to GPR1. This is

Re: [PATCH 23/24] powerpc/mm: Cleanup check for stack expansion

Benjamin Herrenschmidt a écrit : When hitting below a VM_GROWSDOWN vma (typically growing the stack), we check whether it's a valid stack-growing instruction and we check the distance to GPR1. This is largely open coded with lots of comments, so move it out to a