Merge tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg...

[~andy/linux] / mm / huge_memory.c

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index b3ffc21ce8010b9de9c92004e2a364326af8dc1b..91d3efb25d15472332e1f2d9c382a5732629ce69 100644 (file)
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2083,7 +2083,7 @@ static void collect_mm_slot(struct mm_slot *mm_slot)
 {
        struct mm_struct *mm = mm_slot->mm;
 
-       VM_BUG_ON(!spin_is_locked(&khugepaged_mm_lock));
+       VM_BUG_ON(NR_CPUS != 1 && !spin_is_locked(&khugepaged_mm_lock));
 
        if (khugepaged_test_exit(mm)) {
                /* free mm_slot */
@@ -2113,7 +2113,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
        int progress = 0;
 
        VM_BUG_ON(!pages);
-       VM_BUG_ON(!spin_is_locked(&khugepaged_mm_lock));
+       VM_BUG_ON(NR_CPUS != 1 && !spin_is_locked(&khugepaged_mm_lock));
 
        if (khugepaged_scan.mm_slot)
                mm_slot = khugepaged_scan.mm_slot;