char: Mark /dev/zero and /dev/kmem as not capable of writeback
These devices don't do any writeback but their device inodes still can get dirty so mark bdi appropriately so that bdi code does the right thing and files inodes to lists of bdi carrying the device inodes. Cc: stable@kernel.org Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
Showing
想要评论请 注册 或 登录