From e0ace6ca98bef0d8d354040f13ffc0a498813ee9 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 22 Nov 2023 17:18:17 +0000 Subject: netfs, cachefiles: Pass upper bound length to allow expansion Make netfslib pass the maximum length to the ->prepare_write() op to tell the cache how much it can expand the length of a write to. This allows a write to the server at the end of a file to be limited to a few bytes whilst writing an entire block to the cache (something required by direct I/O). Signed-off-by: David Howells Reviewed-by: Jeff Layton cc: linux-cachefs@redhat.com cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org --- fs/netfs/objects.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/netfs/objects.c') diff --git a/fs/netfs/objects.c b/fs/netfs/objects.c index 93f1d7431199..b4e3bd836e5d 100644 --- a/fs/netfs/objects.c +++ b/fs/netfs/objects.c @@ -33,6 +33,7 @@ struct netfs_io_request *netfs_alloc_request(struct address_space *mapping, rreq->start = start; rreq->len = len; + rreq->upper_len = len; rreq->origin = origin; rreq->netfs_ops = ctx->ops; rreq->mapping = mapping; -- cgit v1.2.3