6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Howells <dhowells@xxxxxxxxxx> [ Upstream commit 51d37982bbac3ea0ca21b2797a9cb0044272b3aa ] Set the maximum size of a subrequest that writes to cachefiles to be MAX_RW_COUNT so that we don't overrun the maximum write we can make to the backing filesystem. Signed-off-by: David Howells <dhowells@xxxxxxxxxx> Link: https://lore.kernel.org/r/1599005.1721398742@xxxxxxxxxxxxxxxxxxxxxx cc: Jeff Layton <jlayton@xxxxxxxxxx> cc: netfs@xxxxxxxxxxxxxxx cc: linux-fsdevel@xxxxxxxxxxxxxxx Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- fs/cachefiles/io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cachefiles/io.c b/fs/cachefiles/io.c index e667dbcd20e8..a91acd03ee12 100644 --- a/fs/cachefiles/io.c +++ b/fs/cachefiles/io.c @@ -630,7 +630,7 @@ static void cachefiles_prepare_write_subreq(struct netfs_io_subrequest *subreq) _enter("W=%x[%x] %llx", wreq->debug_id, subreq->debug_index, subreq->start); - subreq->max_len = ULONG_MAX; + subreq->max_len = MAX_RW_COUNT; subreq->max_nr_segs = BIO_MAX_VECS; if (!cachefiles_cres_file(cres)) { -- 2.43.0
