From: Kent Overstreet Date: Tue, 30 Jun 2020 14:12:45 +0000 (-0400) Subject: bcachefs: Don't cap ios in dio write path at 2 MB X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=52fbb7c859788bb10dc0f1527eedf80fd11ec9ec;p=linux.git bcachefs: Don't cap ios in dio write path at 2 MB It appears this was erronious, a different bug was responsible Signed-off-by: Kent Overstreet Signed-off-by: Kent Overstreet --- diff --git a/fs/bcachefs/fs-io.c b/fs/bcachefs/fs-io.c index f893bef34217e..d379581c25177 100644 --- a/fs/bcachefs/fs-io.c +++ b/fs/bcachefs/fs-io.c @@ -1797,22 +1797,12 @@ static long bch2_dio_write_loop(struct dio_write *dio) goto loop; while (1) { - size_t extra = dio->iter.count - - min(BIO_MAX_VECS * PAGE_SIZE, dio->iter.count); - if (kthread) kthread_use_mm(dio->mm); BUG_ON(current->faults_disabled_mapping); current->faults_disabled_mapping = mapping; - /* - * Don't issue more than 2MB at once, the bcachefs io path in - * io.c can't bounce more than that: - */ - - dio->iter.count -= extra; ret = bio_iov_iter_get_pages(bio, &dio->iter); - dio->iter.count += extra; current->faults_disabled_mapping = NULL; if (kthread)