forge/linux-uconsole
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions

ANDROID: mm: fix invalid backport in speculative page fault path

Browse source 
Invalid condition was introduced when porting the original SPF patch
which would affect NUMA mode.

Fixes: 736ae8bde8 ("FROMLIST: mm: adding speculative page fault failure trace events")
Bug: 257443051
Change-Id: Ib20c625615b279dc467588933a1f598dc179861b
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
This commit is contained in:
Suren Baghdasaryan 2022-11-22 10:51:25 -08:00
commit 1900436df5
1 changed files with 4 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

9
mm/memory.c
View file

@ -5064,11 +5064,10 @@ static vm_fault_t ___handle_speculative_fault(struct mm_struct *mm,
pol = __get_vma_policy(vmf.vma, address);
if (!pol)
pol = get_task_policy(current);
if (!pol)
if (pol && pol->mode == MPOL_INTERLEAVE) {
trace_spf_vma_notsup(_RET_IP_, vmf.vma, address);
return VM_FAULT_RETRY;
}
if (pol && pol->mode == MPOL_INTERLEAVE) {
trace_spf_vma_notsup(_RET_IP_, vmf.vma, address);
return VM_FAULT_RETRY;
}
#endif
/*