Merge tag 'x86-irq-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

[linux-2.6-microblaze.git] / mm / readahead.c

diff --git a/mm/readahead.c b/mm/readahead.c
index d589f14..41b75d7 100644 (file)
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -192,6 +192,7 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
         */
        unsigned int nofs = memalloc_nofs_save();
 
+       filemap_invalidate_lock_shared(mapping);
        /*
         * Preallocate as many pages as we will need.
         */
@@ -236,6 +237,7 @@ void page_cache_ra_unbounded(struct readahead_control *ractl,
         * will then handle the error.
         */
        read_pages(ractl, &page_pool, false);
+       filemap_invalidate_unlock_shared(mapping);
        memalloc_nofs_restore(nofs);
 }
 EXPORT_SYMBOL_GPL(page_cache_ra_unbounded);