Al Viro d088af1e22 ia64: fix livelock in uaccess
ia64 equivalent of 26178ec11ef3 "x86: mm: consolidate VM_FAULT_RETRY handling"
If e.g. get_user() triggers a page fault and a fatal signal is caught, we might
end up with handle_mm_fault() returning VM_FAULT_RETRY and not doing anything
to page tables.  In such case we must *not* return to the faulting insn -
that would repeat the entire thing without making any progress; what we need
instead is to treat that as failed (user) memory access.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2023-03-02 12:32:27 -05:00
..
2022-10-11 18:51:10 -07:00
2022-12-13 19:29:45 -08:00
2023-03-02 12:32:27 -05:00
2021-02-01 10:37:19 +09:00
2019-08-16 14:32:26 -07:00