Change Details

vm_radix: add vm_radix_insert_prealloc() a non-failing variant of vm_radix_insert() that takes the preallocated pctrie node used for the insertion. The element to be inserted must not be present in the trie already. amd64 pmap: do not panic if a kernel pt cannot be inserted into pm_root trie amd64 pmap: preallocate pt page foir pmap_demote_pdpe() in pmap_demote_DMAP() Allocate the page outside the kernel_pmap locked region, and pass it to pmap_demote_pdpe() instead of panicing if VM_ALLOC_INTERRUPT failing.

vm_radix: add vm_radix_insert_prealloc() a non-failing variant of vm_radix_insert() that takes the preallocated pctrie node used for the insertion. The element to be inserted must not be present in the trie already. amd64 pmap: do not panic if a kernel pt cannot be inserted into pm_root trie dev/mem: use sx instead of rw lock Some ops require sleepable context to success, like DMAP demotion. amd64 pmap: preallocate pt page foir pmap_demote_pdpe() in pmap_demote_DMAP() Allocate the page outside the kernel_pmap locked region, and pass it to pmap_demote_pdpe() instead of panicing if VM_ALLOC_INTERRUPT failing.

vm_radix: add vm_radix_insert_prealloc() a non-failing variant of vm_radix_insert() that takes the preallocated pctrie node used for the insertion. The element to be inserted must not be present in the trie already. amd64 pmap: do not panic if a kernel pt cannot be inserted into pm_root trie dev/mem: use sx instead of rw lock Some ops require sleepable context to success, like DMAP demotion. amd64 pmap: preallocate pt page foir pmap_demote_pdpe() in pmap_demote_DMAP() Allocate the page outside the kernel_pmap locked region, and pass it to pmap_demote_pdpe() instead of panicing if VM_ALLOC_INTERRUPT failing.