Re: [PATCH 2/4] powerpc/mm: Handle VDSO unmapping via close() rather than arch_unmap()

2024-08-08 Thread Jeff Xu
On Thu, Aug 8, 2024 at 11:46 AM Liam R. Howlett wrote: > > * Jeff Xu [240808 14:37]: > > On Thu, Aug 8, 2024 at 11:08 AM Liam R. Howlett > > wrote: > > > > > > * Jeff Xu [240807 23:37]: > > > > On Wed, Aug 7, 2024 at 8:21 PM Linus Torvalds &

Re: [PATCH 2/4] powerpc/mm: Handle VDSO unmapping via close() rather than arch_unmap()

2024-08-08 Thread Jeff Xu
On Thu, Aug 8, 2024 at 11:08 AM Liam R. Howlett wrote: > > * Jeff Xu [240807 23:37]: > > On Wed, Aug 7, 2024 at 8:21 PM Linus Torvalds > > wrote: > > > > > > On Wed, 7 Aug 2024 at 16:20, Liam R. Howlett > > > wrote: > > > > &g

Re: [PATCH 2/4] powerpc/mm: Handle VDSO unmapping via close() rather than arch_unmap()

2024-08-07 Thread Jeff Xu
On Wed, Aug 7, 2024 at 8:21 PM Linus Torvalds wrote: > > On Wed, 7 Aug 2024 at 16:20, Liam R. Howlett wrote: > > > > Okay, I'm going to try one more time here. You are suggesting to have a > > conf flag to leave the vdso pointer unchanged when it is unmapped. > > Having the close behind the conf

Re: [PATCH 2/4] powerpc/mm: Handle VDSO unmapping via close() rather than arch_unmap()

2024-08-07 Thread Jeff Xu
On Wed, Aug 7, 2024 at 8:21 PM Linus Torvalds wrote: > > On Wed, 7 Aug 2024 at 16:20, Liam R. Howlett wrote: > > > > Okay, I'm going to try one more time here. You are suggesting to have a > > conf flag to leave the vdso pointer unchanged when it is unmapped. > > Having the close behind the conf

Re: [PATCH 2/4] powerpc/mm: Handle VDSO unmapping via close() rather than arch_unmap()

2024-08-07 Thread Jeff Xu
On Wed, Aug 7, 2024 at 10:11 AM Liam R. Howlett wrote: > > * Jeff Xu [240807 12:37]: > > On Wed, Aug 7, 2024 at 8:56 AM Liam R. Howlett > > wrote: > > > > > > * Jeff Xu [240807 11:44]: > > > > On Wed, Aug 7, 2024 at 5:41 AM Michael Ellerman

Re: [PATCH 2/4] powerpc/mm: Handle VDSO unmapping via close() rather than arch_unmap()

2024-08-07 Thread Jeff Xu
On Wed, Aug 7, 2024 at 8:56 AM Liam R. Howlett wrote: > > * Jeff Xu [240807 11:44]: > > On Wed, Aug 7, 2024 at 5:41 AM Michael Ellerman wrote: > > > > > > Add a close() callback to the VDSO special mapping to handle unmapping > > > of the VDSO. T

Re: [PATCH 2/4] powerpc/mm: Handle VDSO unmapping via close() rather than arch_unmap()

2024-08-07 Thread Jeff Xu
On Wed, Aug 7, 2024 at 5:41 AM Michael Ellerman wrote: > > Add a close() callback to the VDSO special mapping to handle unmapping > of the VDSO. That will make it possible to remove the arch_unmap() hook > entirely in a subsequent patch. > > Suggested-by: Linus Torvalds > Signed-off-by: Michael E