gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mremap: Fix to work correctly when old_page is large_page

Browse Source 
Change-Id: I5a589383644a8098d910e49cd7ade6df325e0366
Refs: #1383
This commit is contained in:
Ken Sato
2020-01-30 14:11:22 +09:00
committed by Masamichi Takagi
parent 4bbdee395e
commit 41ea9d16c4
8 changed files with 344 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
kernel/process.c
View File

@ -908,10 +908,19 @@ int split_process_memory_range(struct process_vm *vm, struct vm_range *range,
{
int error;
struct vm_range *newrange = NULL;
unsigned long page_mask;
dkprintf("split_process_memory_range(%p,%lx-%lx,%lx,%p)\n",
vm, range->start, range->end, addr, splitp);
if (range->pgshift != 0) {
page_mask = (1 << range->pgshift) - 1;
if (addr & page_mask) {
/* split addr is not aligned */
range->pgshift = 0;
}
}
error = ihk_mc_pt_split(vm->address_space->page_table, vm, (void *)addr);
if (error) {
ekprintf("split_process_memory_range:"