On Tue, Jun 29, 2010 at 13:03, David Howells <dhowells@xxxxxxxxxx> wrote: > Add a pair of system calls to make extended file stats available, including > file creation time, inode version and data version where available through the > underlying filesystem: If you add something like this you might want to integrate another extension. This has been discussed a long time ago. In almost no situation all the information is needed. Some of the pieces of information returned by the syscall might be harder to collect than other. It makes sense in such a situation to allow the caller to specify what she is interested in. A bitmask of some sort. This was brought up by the HPC people with gigantic filesystems. For this the syscall interface should have a parameter to specify what is requested and the stat-like structure should have a field specifying what is actually present. The latter bitmask must be a superset of the former. Previous discussions centered around reusing the stat data structure and somehow make it work. But no clean solution was found. If a new structure is added anyway this could solve the issue. And while you're at it, maybe some spare fields at the end are nice. -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
