diff options
| -rw-r--r-- | mm/filemap.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 189b8f318da2..dc3b78db079b 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -3241,11 +3241,13 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from) * do not end up with dio_complete() being called, so let's not break * them by removing it completely. * + * Noticeable example is a blkdev_direct_IO(). + * * Skip invalidation for async writes or if mapping has no pages. */ - if (written > 0 && mapping->nrpages) - invalidate_inode_pages2_range(mapping, - pos >> PAGE_SHIFT, end); + if (written > 0 && mapping->nrpages && + invalidate_inode_pages2_range(mapping, pos >> PAGE_SHIFT, end)) + dio_warn_stale_pagecache(file); if (written > 0) { pos += written; |