On Tue, Mar 03, 2015 at 04:37:00PM -0800, Dan Ehrenberg wrote: > Previously, stat on 32-bit platforms used old-style encoding and > validation of major-minor pairs, with 8:8 bits. However, dev_t is > 32-bits on these platforms, and coreutils seems to be treating the > values as 12:20 new-style values. The only reason to use the old > version is in the implementation of a legacy filesystem format which > only has 16 bits of space. Communicating a 12:20 value to userspace > when sizeof dev_t == 4 can be done on either a 32-bit or 64-bit > platform. > > This patch removes the artificial restriction in major:minor size. > The only backwards incompatibility which results is sometimes stat > succeeds if -EOVERFLOW would be returned otherwise. The legacy > old-style stat call is retained as-is. Umm... You do realize that coreutils are _very_ far from being the only userland programs handling the data returned by stat(2), right? What's to guarantee that your ABI change won't break any of those? -- 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
