Re: [PATCH] powerpc/8xx: Load modules closer to kernel text

2021-04-01 Thread Christophe Leroy
Le 01/04/2021 à 06:33, Michael Ellerman a écrit : Christophe Leroy writes: Le 31/03/2021 à 15:39, Michael Ellerman a écrit : Christophe Leroy writes: On the 8xx, TASK_SIZE is 0x8000. The space between TASK_SIZE and PAGE_OFFSET is not used. Use it to load modules in order to minimise

Re: [PATCH] powerpc/8xx: Load modules closer to kernel text

2021-03-31 Thread Michael Ellerman
Christophe Leroy writes: > Le 31/03/2021 à 15:39, Michael Ellerman a écrit : >> Christophe Leroy writes: >>> On the 8xx, TASK_SIZE is 0x8000. The space between TASK_SIZE and >>> PAGE_OFFSET is not used. >>> >>> Use it to load modules in order to minimise the distance between >>> kernel text a

Re: [PATCH] powerpc/8xx: Load modules closer to kernel text

2021-03-31 Thread Christophe Leroy
Le 31/03/2021 à 15:39, Michael Ellerman a écrit : Christophe Leroy writes: On the 8xx, TASK_SIZE is 0x8000. The space between TASK_SIZE and PAGE_OFFSET is not used. Use it to load modules in order to minimise the distance between kernel text and modules and avoid trampolines in modules

Re: [PATCH] powerpc/8xx: Load modules closer to kernel text

2021-03-31 Thread Michael Ellerman
Christophe Leroy writes: > On the 8xx, TASK_SIZE is 0x8000. The space between TASK_SIZE and > PAGE_OFFSET is not used. > > Use it to load modules in order to minimise the distance between > kernel text and modules and avoid trampolines in modules to access > kernel functions or other module fu