On Mon, Mar 13, 2017 at 8:59 AM, Josh Hunt <johunt@xxxxxxxxxx> wrote: > Allows application to read the amount of data sitting in the receive > queue. > > Signed-off-by: Josh Hunt <johunt@xxxxxxxxxx> > --- > > A team here is looking for a way to get the amount of data in a UDP socket's > receive queue. It seems like this should be SIOCINQ, but for UDP sockets that > returns the size of the next pending datagram. I implemented the patch below, > but am wondering if this is the right place for this change? I was debating > between this or a new UDP ioctl. But what is the 'amount of data' exactly ? Number of packets, amount of bytes to read from these packets ? You chose to report kernel memory usage, which is not guaranteed to be the same among kernels versions (or kernel configs) If we export these internals, I would export the whole thing, like we did with netlink ie tweak sock_diag_put_meminfo() and export the SK_MEMINFO_VARS So that we avoid adding other options in the future.
