Eric Blake 2686eb845d uapi nbd: add cookie alias to handle ... The uapi <linux/nbd.h> header declares a 'char handle[8]' per request; which is overloaded in English (are you referring to "handle" the verb, such as handling a signal or writing a callback handler, or "handle" the noun, the value used in a lookup table to correlate a response back to the request). Many user-space NBD implementations (both servers and clients) have instead used 'uint64_t cookie' or similar, as it is easier to directly assign an integer than to futz around with memcpy. In fact, upstream documentation is now encouraging this shift in terminology: ca4392eb2b Accomplish this by use of an anonymous union to provide the alias for anyone getting the definition from the uapi; this does not break existing clients, while exposing the nicer name for those who prefer it. Note that block/nbd.c still uses the term handle (in fact, it actually combines a 32-bit cookie and a 32-bit tag into the 64-bit handle), but that internal usage is not changed by the public uapi, since no compliant NBD server has any reason to inspect or alter the 64 bits sent over the socket. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20230410180611.1051618-3-eblake@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-04-27 19:15:11 -06:00
..
asm-generic	uapi: Add missing _UAPI prefix to <asm-generic/types.h> include guard	2022-12-01 16:22:06 +01:00
drm	drm-next-fixes for 6.3-rc1	2023-03-02 15:08:54 -08:00
linux	uapi nbd: add cookie alias to handle	2023-04-27 19:15:11 -06:00
misc	habanalabs/uapi: move uapi file to drm	2023-01-26 10:56:23 +02:00
mtd	This pull request contains updates for UBI and UBIFS	2022-10-14 18:23:23 -07:00
rdma	RDMA/hns: Support cqe inline in user space	2023-01-09 10:45:28 -04:00
scsi	scsi: mpi3mr: Replace 1-element array with flex-array	2023-02-21 22:00:50 -05:00
sound	ASoC: Updates for v6.3	2023-02-16 14:32:04 +01:00
video
xen
Kbuild