diff options
| author | Yunlong Song <yunlong.song@huawei.com> | 2017-10-27 20:45:05 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-11-05 16:41:52 -0800 |
| commit | 80d421450187e894af841849d66614a0456912f9 (patch) | |
| tree | c888ca0009b4c43812a5c83f1e77473b585bf951 /fs/f2fs/super.c | |
| parent | bf9c14278545a878b1c1982260123330b5dc05e4 (diff) | |
| download | linux-80d421450187e894af841849d66614a0456912f9.tar.bz2 | |
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>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 213d2c1e5759..dab1fedf7148 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -987,7 +987,7 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_blocks = total_count - start_count; buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; buf->f_bavail = user_block_count - valid_user_blocks(sbi) - - sbi->reserved_blocks; + sbi->current_reserved_blocks; avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; @@ -2458,6 +2458,7 @@ try_onemore: le64_to_cpu(sbi->ckpt->valid_block_count); sbi->last_valid_block_count = sbi->total_valid_block_count; sbi->reserved_blocks = 0; + sbi->current_reserved_blocks = 0; for (i = 0; i < NR_INODE_TYPE; i++) { INIT_LIST_HEAD(&sbi->inode_list[i]); |