nios2: fix flush_dcache_page() for usage from irq context

[linux-2.6-microblaze.git] / arch / nios2 / mm / cacheflush.c

diff --git a/arch/nios2/mm/cacheflush.c b/arch/nios2/mm/cacheflush.c
index 28b805f..0ee9c5f 100644 (file)
--- a/arch/nios2/mm/cacheflush.c
+++ b/arch/nios2/mm/cacheflush.c
@@ -75,12 +75,13 @@ static void flush_aliases(struct address_space *mapping, struct folio *folio)
 {
        struct mm_struct *mm = current->active_mm;
        struct vm_area_struct *vma;
+       unsigned long flags;
        pgoff_t pgoff;
        unsigned long nr = folio_nr_pages(folio);
 
        pgoff = folio->index;
 
-       flush_dcache_mmap_lock(mapping);
+       flush_dcache_mmap_lock_irqsave(mapping, flags);
        vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff + nr - 1) {
                unsigned long start;
 
@@ -92,7 +93,7 @@ static void flush_aliases(struct address_space *mapping, struct folio *folio)
                start = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
                flush_cache_range(vma, start, start + nr * PAGE_SIZE);
        }
-       flush_dcache_mmap_unlock(mapping);
+       flush_dcache_mmap_unlock_irqrestore(mapping, flags);
 }
 
 void flush_cache_all(void)