tree c888ca0009b4c43812a5c83f1e77473b585bf951
parent bf9c14278545a878b1c1982260123330b5dc05e4
author Yunlong Song <yunlong.song@huawei.com> 1509108305 +0800
committer Jaegeuk Kim <jaegeuk@kernel.org> 1509928912 -0800

f2fs: support soft block reservation

It supports to extend reserved_blocks sysfs interface to be soft
threshold, which allows user configure it exceeding current available
user space. This patch also introduces a new sysfs interface called
current_reserved_blocks, which shows the current blocks that have
already been reserved.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>