On Sat, Jan 4, 2025 at 4:40 PM Benjamin Coddington <bcodding@xxxxxxxxxx> wrote: > > On 3 Jan 2025, at 18:07, Takeshi Nishimura wrote: > > > On Thu, Jan 2, 2025 at 4:38 PM Benjamin Coddington <bcodding@xxxxxxxxxx> wrote: > >> > >> On 26 Dec 2024, at 19:45, Takeshi Nishimura wrote: > >> > >>> Dear list, > >>> > >>> Is there a document which explains the structure of the Linux > >>> NFSv4.1/4.2 client source code? > >> > >> No, I don't believe there is any such document. > >> > >>> And where can I find the code which negotiates between NFSv4.1 and > >>> NFSv4.2 versions, and a potential NFSv4.3? > >> > >> For the client, that code is in the nfs-utils tree in the mount.nfs binary, > >> source in utils/mount/stropts.c - look for "nfs_autonegotiate()". If the > >> mount command does not specify exactly the minor version, then a mount is > >> tried with decreasing minor versions. > > > > So mount.nfs adds vers=4.2, if that fails it retries with vers=4.1, vers=4.0? > > > > Where in the kernel is the minor version from the parsed vers=4.2 option used? > > Start looking around in fs/nfs/fs_context.c for "minorversion".. Thanks Another question about NFS 4.1 / 4.2 client implementation: Is the NFSv4. minor version per session? Could a NFS client implemenation send both NFSv4.1 and NFSv4.2 compound requests, if they are in different NFS sessions? -- Internationalization&localization dev / 大阪大学 Takeshi Nishimura <takeshi.nishimura.linux@xxxxxxxxx>
