staging: erofs: globalize prepare_bio and __submit_bio

The unzip subsystem also uses these functions,
let's export them to internal.h.

Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gao Xiang 2018-07-26 20:22:00 +08:00 • committed by Greg Kroah-Hartman
commit 55441958bb
2 changed files with 42 additions and 25 deletions