On Fri, May 20, 2016 at 11:30:43AM -0700, Viacheslav Dubeyko wrote: > I am not sure that I follow to your point. The F2FS has "feature" field > (__le32 feature) into on-disk superblock (struct f2fs_super_block). The > suggested patch introduces the new F2FS_FEATURE_16TB_SUPPORT flag. And > it looks like as your comment. It does, but at the same time you also introduce a major version superblock field. > So, necessary changes in on-disk layout for 16+TB volumes support will > be incompatible with current available version of F2FS driver. It means > that, anyway, we need to increase version of on-disk layout (major_ver > of struct f2fs_super_block). The presence of superblock's version and > F2FS_FEATURE_16TB_SUPPORT flag will be very useful for consistency > checking by fsck tool. Why is the feature not enough for that? -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html