diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/iomap.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/iomap.c b/fs/iomap.c index 18f2f2b8ba2c..c71a64b97fba 100644 --- a/fs/iomap.c +++ b/fs/iomap.c @@ -881,6 +881,14 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter, flags |= IOMAP_WRITE; } + if (iocb->ki_flags & IOCB_NOWAIT) { + if (filemap_range_has_page(mapping, start, end)) { + ret = -EAGAIN; + goto out_free_dio; + } + flags |= IOMAP_NOWAIT; + } + ret = filemap_write_and_wait_range(mapping, start, end); if (ret) goto out_free_dio; |