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6b9785dc8b
Currently, different NFS clients can share the same DS connections, even when they are in different net namespaces. If a containerized client creates a DS connection, another container can find and use it. When the first client exits, the connection will close which can lead to stalls in other clients. Add a net namespace pointer to struct nfs4_pnfs_ds, and compare those value to the caller's netns in _data_server_lookup_locked() when searching for a nfs4_pnfs_ds to match. Reported-by: Omar Sandoval <osandov@osandov.com> Reported-by: Sargun Dillon <sargun@sargun.me> Closes: https://lore.kernel.org/linux-nfs/Z_ArpQC_vREh_hEA@telecaster/ Tested-by: Sargun Dillon <sargun@sargun.me> Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Link: https://lore.kernel.org/r/20250410-nfs-ds-netns-v2-1-f80b7979ba80@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> |
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