Currently we replace filesystem statistics using prjquota info on statfs when specified directory has project id inherit flag. However, statfs on a file(accurately non-dir) which is under the project quota dir(with inherit flag) still shows whole filesystem statistics. In container use case, it will give container user inconsistent experience and cause confusion about available free space. Detail info like below: We use project quota to limit disk space usage for a container and run df command inside container. Run df on a directory: [root /]# df -h /etc/ Filesystem Size Used Avail Use% Mounted on kataShared 1.0G 13M 1012M 2% / Run df on a file: [root /]# df -h /etc/exports Filesystem Size Used Avail Use% Mounted on kataShared 1.5T 778M 1.5T 1% / Signed-off-by: Chengguang Xu <cgxu519@xxxxxxxxxxxx> --- fs/ext4/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index dd654e53ba3d..3fba22b54f5c 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5607,7 +5607,8 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL; #ifdef CONFIG_QUOTA - if (ext4_test_inode_flag(dentry->d_inode, EXT4_INODE_PROJINHERIT) && + if ((ext4_test_inode_flag(dentry->d_inode, EXT4_INODE_PROJINHERIT) || + !S_ISDIR(dentry->d_inode->i_mode)) && sb_has_quota_limits_enabled(sb, PRJQUOTA)) ext4_statfs_project(sb, EXT4_I(dentry->d_inode)->i_projid, buf); #endif -- 2.20.1
