SB_I_VERSION
fc->sb_flags |= SB_I_VERSION;
fc->sb_flags |= SB_I_VERSION;
if (nodefs && sb->s_flags & SB_I_VERSION)
sb->s_flags &= ~(SB_NOSEC | SB_I_VERSION);
SB_I_VERSION);
sb->s_flags |= SB_I_VERSION;
fc->sb_flags |= SB_I_VERSION;
#define IS_I_VERSION(inode) __IS_FLG(inode, SB_I_VERSION)
fc->sb_flags |= SB_I_VERSION;