Pavel Raiskup <praiskup@xxxxxxxxxx> wrote: > On Tuesday, January 9, 2018 8:59:06 AM CET Paul Eggert wrote: > > Pavel Raiskup wrote: > > > So what about special casing that filesystem, where we can lseek() for > > > holes anyway? > > > > If we can lseek for holes, then why not just do that? > > Checking whether lseek() actually works costs some additional syscalls _per > sparse_ file; checking for ST_NBLOCKS() is without this penalty. Well, star does this since a long time and the penalty is a few microseconds. "~A -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
