18 Oct
2023
18 Oct
'23
7:07 p.m.
On Wed, Oct 18, 2023 at 11:27 AM Linus Torvalds torvalds@linux-foundation.org wrote:
On Wed, 18 Oct 2023 at 10:14, Jeff Xu jeffxu@google.com wrote: This is simply not up for discussion. Any flag for "ignore sealing" is wrong.
We do have one special "unmap" case, namely "unmap_vmas()' called at last mmput() -> __mmput() -> exit_mmap().
And yes, that is called at munmap() time too, but that's after the point of no return after we've already removed the vma's from the VM lists. So it's long after any error cases have been checked.
Ah. I see. I didn't know there was no legit case, which is what I worried about before. this flag can be removed.