> Introducing headersize in pstore_write() API would need changes at > multiple places whereits being called. The idea is to move the > compression support to pstore infrastructure so that other platforms > could also make use of it.
Any thoughts on the back/forward compatibility as we switch to compressed pstore data? E.g. imagine I have a system installed with some Linux distribution with a kernel too old to know about compressed pstore. I use that machine to run the latest kernels that do compression ... and one fine day one of them crashes hard - logging in compressed form to pstore. Now I boot my distro kernel to pick up the pieces ... what do I see in /sys/fs/pstore/*? Some compressed files? Can I read them with some tool? This somewhat of a corner case - but not completely unrealistic ... I'd at least like to be reassured that the old kernel won't choke when it sees the compressed blobs. -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
