diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2023-01-30 23:47:28 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2023-03-02 12:32:27 -0500 |
| commit | d088af1e221c32bd67825c5dccf664f699e827b4 (patch) | |
| tree | be718bd73e7d461089e86dc50f08e63f9c029c9d /include/linux/fpga/fpga-mgr.h | |
| parent | 79c54c97c7735e09f9e2193a713f30e56eec00dc (diff) | |
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>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions