Commit 2e85abf0 authored by Jens Axboe's avatar Jens Axboe
Browse files

mm: allow read-ahead with IOCB_NOWAIT set 



The read-ahead shouldn't block, so allow it to be done even if
IOCB_NOWAIT is set in the kiocb.

Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent b63534c4

mm/filemap.c

+0 −2
Original line number Diff line number Diff line
@@ -2028,8 +2028,6 @@ ssize_t generic_file_buffered_read(struct kiocb *iocb, 


		page = find_get_page(mapping, index);

		if (!page) {

			if (iocb->ki_flags & IOCB_NOWAIT)

				goto would_block;

			page_cache_sync_readahead(mapping,

					ra, filp,

					index, last_index - index);