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linux/net/sunrpc/sysfs.c

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sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: Create a client/ subdirectory in the sunrpc sysfs For network namespace separation. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:11 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC for TCP display xprt's source port in sysfs xprt_info Using TCP connection's source port it is useful to match connections seen on the network traces to the xprts used by the linux nfs client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:49 -04:00
kernfs: pass struct ns_common instead of const void * for namespace tags kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-01 12:15:58 +02:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: Create a client/ subdirectory in the sunrpc sysfs For network namespace separation. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:11 -04:00
kobject: make kobject_get_ownership() take a constant kobject * The call, kobject_get_ownership(), does not modify the kobject passed into it, so make it const. This propagates down into the kobj_type function callbacks so make the kobject passed into them also const, ensuring that nothing in the kobject is being changed here. This helps make it more obvious what calls and callbacks do, and do not, modify structures passed to them. Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Anna Schumaker <anna@kernel.org> Cc: Roopa Prabhu <roopa@nvidia.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Jeff Layton <jlayton@kernel.org> Cc: linux-nfs@vger.kernel.org Cc: bridge@lists.linux-foundation.org Cc: netdev@vger.kernel.org Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://lore.kernel.org/r/20221121094649.1556002-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-21 10:46:45 +01:00
sunrpc: Create a client/ subdirectory in the sunrpc sysfs For network namespace separation. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:11 -04:00
SUNRPC: make kobj_type structures constant Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definitions to prevent modification at runtime. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2023-02-14 04:21:24 +00:00
sunrpc: Create a client/ subdirectory in the sunrpc sysfs For network namespace separation. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:11 -04:00
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 16:37:42 -08:00
sunrpc: Create a client/ subdirectory in the sunrpc sysfs For network namespace separation. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:11 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: Add a sysfs files for rpc_clnt information These files display useful information about the RPC client, such as the rpc version number, program name, and maximum number of connections allowed. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-4-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:23 -05:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
sunrpc: Add a sysfs files for rpc_clnt information These files display useful information about the RPC client, such as the rpc version number, program name, and maximum number of connections allowed. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-4-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:23 -05:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: Add srcaddr as a file in sysfs I don't support changing it right now, but it could be useful information for clients with multiple network cards. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:45:23 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
SUNRPC: Add srcaddr as a file in sysfs I don't support changing it right now, but it could be useful information for clients with multiple network cards. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:45:23 -04:00
SUNRPC: Check if the xprt is connected before handling sysfs reads xprts don't immediately reconnect when changing the "dstaddr" property, instead this gets handled the next time an operation uses the transport. This could lead to NULL pointer dereferences when trying to read sysfs files between the disconnect and reconnect operations. Fix this by returning an error if the xprt is not connected. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-10-28 15:17:41 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
SUNRPC: Add srcaddr as a file in sysfs I don't support changing it right now, but it could be useful information for clients with multiple network cards. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:45:23 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
SUNRPC: Add srcaddr as a file in sysfs I don't support changing it right now, but it could be useful information for clients with multiple network cards. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:45:23 -04:00
sunrpc: Add a sysfs attr for xprtsec This allows the admin to check the TLS configuration for each xprt. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-3-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:22 -05:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
SUNRPC: Check if the xprt is connected before handling sysfs reads xprts don't immediately reconnect when changing the "dstaddr" property, instead this gets handled the next time an operation uses the transport. This could lead to NULL pointer dereferences when trying to read sysfs files between the disconnect and reconnect operations. Fix this by returning an error if the xprt is not connected. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-10-28 15:17:41 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
SUNRPC: Check if the xprt is connected before handling sysfs reads xprts don't immediately reconnect when changing the "dstaddr" property, instead this gets handled the next time an operation uses the transport. This could lead to NULL pointer dereferences when trying to read sysfs files between the disconnect and reconnect operations. Fix this by returning an error if the xprt is not connected. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-10-28 15:17:41 -04:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
sunrpc: display xprt's queuelen of assigned tasks via sysfs Once a task grabs a trasnport it's reflected in the queuelen of the rpc_xprt structure. Add display of that value in the xprt's info file in sysfs. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:52 -04:00
SUNRPC: Add dst_port to the sysfs xprt info file This is most likely going to be 2049 for NFS, but some servers might be configured to export on a non-standard port. Let's show this information just in case somebody needs it. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:46:05 -04:00
SUNRPC for TCP display xprt's source port in sysfs xprt_info Using TCP connection's source port it is useful to match connections seen on the network traces to the xprts used by the linux nfs client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:49 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
SUNRPC: Add dst_port to the sysfs xprt info file This is most likely going to be 2049 for NFS, but some servers might be configured to export on a non-standard port. Let's show this information just in case somebody needs it. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:46:05 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
SUNRPC: Don't return error values in sysfs read of closed files Instead of returning an error value, which ends up being the return value for the read() system call, it is more elegant to simply return the error as a string value. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-24 17:19:59 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
sunrpc: Add a sysfs file for one-step xprt deletion Previously, the admin would need to set the xprt state to "offline" before attempting to remove. This patch adds a new sysfs attr that does both these steps in a single call. Suggested-by: Benjamin Coddington <bcodding@redhat.com> Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-6-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:25 -05:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
SUNRPC add xps_nunique_destaddr_xprts to xprt_switch_info in sysfs In sysfs's xprt_switch_info attribute also display the value of number of transports with unique destination addresses for this xprt_switch. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-08-27 14:37:16 -04:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
SUNRPC add xps_nunique_destaddr_xprts to xprt_switch_info in sysfs In sysfs's xprt_switch_info attribute also display the value of number of transports with unique destination addresses for this xprt_switch. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-08-27 14:37:16 -04:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
SUNRPC: Do not dereference non-socket transports in sysfs Do not cast the struct xprt to a sock_xprt unless we know it is a UDP or TCP transport. Otherwise the call to lock the mutex will scribble over whatever structure is actually there. This has been seen to cause hard system lockups when the underlying transport was RDMA. Fixes: b49ea673e119 ("SUNRPC: lock against ->sock changing during sysfs read") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-03-25 10:37:31 -04:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
sunrpc: Add a sysfs file for adding a new xprt Writing to this file will clone the 'main' xprt of an xprt_switch and add it to be used as an additional connection. -- Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> v3: Replace call to xprt_iter_get_xprt() with xprt_iter_get_next() Link: https://lore.kernel.org/r/20250207204225.594002-5-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:24 -05:00
sunrpc: fix uninitialized xprt_create_args structure The xprt_create_args structure is allocated on the stack without initialization in rpc_sysfs_xprt_switch_add_xprt_store(). While some fields are manually populated, critical fields like srcaddr, bc_xps, and flags contain uninitialized stack garbage. This can lead to: 1. Kernel panic when xs_setup_xprt() dereferences garbage srcaddr 2. Information leak if srcaddr points to sensitive stack data 3. Unpredictable behavior if flags has random bits set The fix is to zero-initialize the structure to ensure all unused fields are NULL/0, preventing the transport setup code from acting on garbage data. Cc: stable@vger.kernel.org Suggested-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn> Signed-off-by: Anna Schumaker <anna.schumaker@hammerspace.com>
2026-06-03 09:36:52 +08:00
sunrpc: Add a sysfs file for adding a new xprt Writing to this file will clone the 'main' xprt of an xprt_switch and add it to be used as an additional connection. -- Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> v3: Replace call to xprt_iter_get_xprt() with xprt_iter_get_next() Link: https://lore.kernel.org/r/20250207204225.594002-5-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:24 -05:00
sunrpc: Fix error handling in rpc_sysfs_xprt_switch_add_xprt_store() xprt_create_transport() never returns NULL, only valid pointers or error pointers. Using IS_ERR_OR_NULL() is incorrect, and PTR_ERR(NULL) would return 0, which indicates EOF in a sysfs store function. Fix this by using IS_ERR() instead of IS_ERR_OR_NULL(). Fixes: df210d9b0951 ("sunrpc: Add a sysfs file for adding a new xprt") Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn> Signed-off-by: Anna Schumaker <anna.schumaker@hammerspace.com>
2026-05-13 17:28:59 +08:00
sunrpc: Add a sysfs file for adding a new xprt Writing to this file will clone the 'main' xprt of an xprt_switch and add it to be used as an additional connection. -- Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> v3: Replace call to xprt_iter_get_xprt() with xprt_iter_get_next() Link: https://lore.kernel.org/r/20250207204225.594002-5-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:24 -05:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: Add a TCP-with-TLS RPC transport class Use the new TLS handshake API to enable the SunRPC client code to request a TLS handshake. This implements support for RFC 9289, only on TCP sockets. Upper layers such as NFS use RPC-with-TLS to protect in-transit traffic. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2023-06-07 09:59:15 -04:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
sunrpc: fix "occurence"->"occurrence" Trivial fix to spelling mistake in comment text. Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com> Reviewed-by: Joe Damato <joe@dama.to> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2025-08-12 19:33:59 +08:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 16:37:42 -08:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change() The issue happens on some error handling paths. When the function fails to grab the object `xprt`, it simply returns 0, forgetting to decrease the reference count of another object `xps`, which is increased by rpc_sysfs_xprt_kobj_get_xprt_switch(), causing refcount leaks. Also, the function forgets to check whether `xps` is valid before using it, which may result in NULL-dereferencing issues. Fix it by adding proper error handling code when either `xprt` or `xps` is NULL. Fixes: 5b7eb78486cd ("SUNRPC: take a xprt offline using sysfs") Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-10 23:29:13 +08:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change The refcount leak issues take place in an error handling path. When the 3rd argument buf doesn't match with "offline", "online" or "remove", the function simply returns -EINVAL and forgets to decrease the reference count of a rpc_xprt object and a rpc_xprt_switch object increased by rpc_sysfs_xprt_kobj_get_xprt() and rpc_sysfs_xprt_kobj_get_xprt_switch(), causing reference count leaks of both unused objects. Fix this issue by jumping to the error handling path labelled with out_put when buf matches none of "offline", "online" or "remove". Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-09-09 12:32:38 +08:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
SUNRPC expose functions for offline remote xprt functionality Re-arrange the code that make offline transport and delete transport callable functions. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-25 09:32:21 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
SUNRPC expose functions for offline remote xprt functionality Re-arrange the code that make offline transport and delete transport callable functions. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-25 09:32:21 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
SUNRPC expose functions for offline remote xprt functionality Re-arrange the code that make offline transport and delete transport callable functions. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-25 09:32:21 -04:00
sunrpc: remove an offlined xprt using sysfs Once a transport has been put offline, this transport can be also removed from the list of transports. Any tasks that have been stuck on this transport would find the next available active transport and be re-tried. This transport would be removed from the xprt_switch list and freed. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:53 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: Add a sysfs file for one-step xprt deletion Previously, the admin would need to set the xprt state to "offline" before attempting to remove. This patch adds a new sysfs attr that does both these steps in a single call. Suggested-by: Benjamin Coddington <bcodding@redhat.com> Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-6-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:25 -05:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
kernfs: pass struct ns_common instead of const void * for namespace tags kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-01 12:15:58 +02:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
kernfs: pass struct ns_common instead of const void * for namespace tags kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-01 12:15:58 +02:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
kernfs: pass struct ns_common instead of const void * for namespace tags kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-01 12:15:58 +02:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
kernfs: pass struct ns_common instead of const void * for namespace tags kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-01 12:15:58 +02:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
kernfs: pass struct ns_common instead of const void * for namespace tags kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-01 12:15:58 +02:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
kernfs: pass struct ns_common instead of const void * for namespace tags kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-01 12:15:58 +02:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
sunrpc: Add a sysfs files for rpc_clnt information These files display useful information about the RPC client, such as the rpc version number, program name, and maximum number of connections allowed. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-4-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:23 -05:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: Add srcaddr as a file in sysfs I don't support changing it right now, but it could be useful information for clients with multiple network cards. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:45:23 -04:00
sunrpc: Add a sysfs attr for xprtsec This allows the admin to check the TLS configuration for each xprt. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-3-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:22 -05:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
sunrpc: Add a sysfs file for one-step xprt deletion Previously, the admin would need to set the xprt state to "offline" before attempting to remove. This patch adds a new sysfs attr that does both these steps in a single call. Suggested-by: Benjamin Coddington <bcodding@redhat.com> Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-6-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:25 -05:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: Add srcaddr as a file in sysfs I don't support changing it right now, but it could be useful information for clients with multiple network cards. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-07-29 16:45:23 -04:00
sunrpc: Add a sysfs attr for xprtsec This allows the admin to check the TLS configuration for each xprt. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-3-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:22 -05:00
sunrpc: provide transport info in the sysfs directory Allow to query transport's attributes. Currently showing following fields of the rpc_xprt structure: state, last_used, cong, cwnd, max_reqs, min_reqs, num_reqs, sizes of queues binding, sending, pending, backlog. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:20 -04:00
sunrpc: provide showing transport's state info in the sysfs directory In preparation of being able to change the xprt's state, add a way to show currect state of the transport. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:22 -04:00
sunrpc: Add a sysfs file for one-step xprt deletion Previously, the admin would need to set the xprt state to "offline" before attempting to remove. This patch adds a new sysfs attr that does both these steps in a single call. Suggested-by: Benjamin Coddington <bcodding@redhat.com> Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-6-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:25 -05:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
SUNRPC: use default_groups in kobj_type There are currently 2 ways to create a set of sysfs files for a kobj_type, through the default_attrs field, and the default_groups field. Move the sunrpc sysfs code to use default_groups field which has been the preferred way since aa30f47cf666 ("kobject: Add support for default attribute groups to kobj_type") so that we can soon get rid of the obsolete default_attrs field. Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Anna Schumaker <anna.schumaker@netapp.com> Cc: linux-nfs@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-12-28 15:48:23 +01:00
sunrpc: add dst_attr attributes to the sysfs xprt directory Allow to query and set the destination's address of a transport. Setting of the destination address is allowed only for TCP or RDMA based connections. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:19 -04:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
sunrpc: Add a sysfs file for adding a new xprt Writing to this file will clone the 'main' xprt of an xprt_switch and add it to be used as an additional connection. -- Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> v3: Replace call to xprt_iter_get_xprt() with xprt_iter_get_next() Link: https://lore.kernel.org/r/20250207204225.594002-5-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:24 -05:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
sunrpc: Add a sysfs file for adding a new xprt Writing to this file will clone the 'main' xprt of an xprt_switch and add it to be used as an additional connection. -- Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> v3: Replace call to xprt_iter_get_xprt() with xprt_iter_get_next() Link: https://lore.kernel.org/r/20250207204225.594002-5-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:24 -05:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
SUNRPC: use default_groups in kobj_type There are currently 2 ways to create a set of sysfs files for a kobj_type, through the default_attrs field, and the default_groups field. Move the sunrpc sysfs code to use default_groups field which has been the preferred way since aa30f47cf666 ("kobject: Add support for default attribute groups to kobj_type") so that we can soon get rid of the obsolete default_attrs field. Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Anna Schumaker <anna.schumaker@netapp.com> Cc: linux-nfs@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-12-28 15:48:23 +01:00
sunrpc: provide multipath info in the sysfs directory Allow to query xrpt_switch attributes. Currently showing the following fields of the rpc_xprt_switch structure: xps_nxprts, xps_nactive, xps_queuelen. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:21 -04:00
SUNRPC: make kobj_type structures constant Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definitions to prevent modification at runtime. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2023-02-14 04:21:24 +00:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: Add a sysfs files for rpc_clnt information These files display useful information about the RPC client, such as the rpc version number, program name, and maximum number of connections allowed. Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Link: https://lore.kernel.org/r/20250207204225.594002-4-anna@kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2025-02-07 15:42:23 -05:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
SUNRPC: make kobj_type structures constant Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definitions to prevent modification at runtime. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2023-02-14 04:21:24 +00:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
SUNRPC: use default_groups in kobj_type There are currently 2 ways to create a set of sysfs files for a kobj_type, through the default_attrs field, and the default_groups field. Move the sunrpc sysfs code to use default_groups field which has been the preferred way since aa30f47cf666 ("kobject: Add support for default attribute groups to kobj_type") so that we can soon get rid of the obsolete default_attrs field. Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Anna Schumaker <anna.schumaker@netapp.com> Cc: linux-nfs@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-12-28 15:48:23 +01:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
SUNRPC: make kobj_type structures constant Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definitions to prevent modification at runtime. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2023-02-14 04:21:24 +00:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
SUNRPC: use default_groups in kobj_type There are currently 2 ways to create a set of sysfs files for a kobj_type, through the default_attrs field, and the default_groups field. Move the sunrpc sysfs code to use default_groups field which has been the preferred way since aa30f47cf666 ("kobject: Add support for default attribute groups to kobj_type") so that we can soon get rid of the obsolete default_attrs field. Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Anna Schumaker <anna.schumaker@netapp.com> Cc: linux-nfs@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2021-12-28 15:48:23 +01:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: Create a client/ subdirectory in the sunrpc sysfs For network namespace separation. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:11 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: Create a sunrpc directory under /sys/kernel/ This is where we'll put per-rpc_client related files Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:10 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 16:37:42 -08:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
treewide: Replace kmalloc with kmalloc_obj for non-scalar types This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-20 23:49:23 -08:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
treewide: Replace kmalloc with kmalloc_obj for non-scalar types This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-20 23:49:23 -08:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
sunrpc: add a symlink from rpc-client directory to the xprt_switch An rpc client uses a transport switch and one ore more transports associated with that switch. Since transports are shared among rpc clients, create a symlink into the xprt_switch directory instead of duplicating entries under each rpc client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:17 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed There is a null-ptr-deref when xps sysfs alloc failed: BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0 Read of size 8 at addr 0000000000000030 by task gssproxy/457 CPU: 5 PID: 457 Comm: gssproxy Not tainted 6.0.0-09040-g02357b27ee03 #9 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 kasan_report+0xa3/0x120 sysfs_do_create_link_sd+0x40/0xd0 rpc_sysfs_client_setup+0x161/0x1b0 rpc_new_client+0x3fc/0x6e0 rpc_create_xprt+0x71/0x220 rpc_create+0x1d4/0x350 gssp_rpc_create+0xc3/0x160 set_gssp_clnt+0xbc/0x140 write_gssp+0x116/0x1a0 proc_reg_write+0xd6/0x130 vfs_write+0x177/0x690 ksys_write+0xb9/0x150 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 When the xprt_switch sysfs alloc failed, should not add xprt and switch sysfs to it, otherwise, maybe null-ptr-deref; also initialize the 'xps_sysfs' to NULL to avoid oops when destroy it. Fixes: 2a338a543163 ("sunrpc: add a symlink from rpc-client directory to the xprt_switch") Fixes: d408ebe04ac5 ("sunrpc: add add sysfs directory per xprt under each xprt_switch") Fixes: baea99445dd4 ("sunrpc: add xprt_switch direcotry to sunrpc's sysfs") Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2022-10-20 11:42:17 +08:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add a symlink from rpc-client directory to the xprt_switch An rpc client uses a transport switch and one ore more transports associated with that switch. Since transports are shared among rpc clients, create a symlink into the xprt_switch directory instead of duplicating entries under each rpc client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:17 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add a symlink from rpc-client directory to the xprt_switch An rpc client uses a transport switch and one ore more transports associated with that switch. Since transports are shared among rpc clients, create a symlink into the xprt_switch directory instead of duplicating entries under each rpc client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:17 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add a symlink from rpc-client directory to the xprt_switch An rpc client uses a transport switch and one ore more transports associated with that switch. Since transports are shared among rpc clients, create a symlink into the xprt_switch directory instead of duplicating entries under each rpc client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:17 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add a symlink from rpc-client directory to the xprt_switch An rpc client uses a transport switch and one ore more transports associated with that switch. Since transports are shared among rpc clients, create a symlink into the xprt_switch directory instead of duplicating entries under each rpc client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:17 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed There is a null-ptr-deref when xps sysfs alloc failed: BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0 Read of size 8 at addr 0000000000000030 by task gssproxy/457 CPU: 5 PID: 457 Comm: gssproxy Not tainted 6.0.0-09040-g02357b27ee03 #9 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 kasan_report+0xa3/0x120 sysfs_do_create_link_sd+0x40/0xd0 rpc_sysfs_client_setup+0x161/0x1b0 rpc_new_client+0x3fc/0x6e0 rpc_create_xprt+0x71/0x220 rpc_create+0x1d4/0x350 gssp_rpc_create+0xc3/0x160 set_gssp_clnt+0xbc/0x140 write_gssp+0x116/0x1a0 proc_reg_write+0xd6/0x130 vfs_write+0x177/0x690 ksys_write+0xb9/0x150 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 When the xprt_switch sysfs alloc failed, should not add xprt and switch sysfs to it, otherwise, maybe null-ptr-deref; also initialize the 'xps_sysfs' to NULL to avoid oops when destroy it. Fixes: 2a338a543163 ("sunrpc: add a symlink from rpc-client directory to the xprt_switch") Fixes: d408ebe04ac5 ("sunrpc: add add sysfs directory per xprt under each xprt_switch") Fixes: baea99445dd4 ("sunrpc: add xprt_switch direcotry to sunrpc's sysfs") Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2022-10-20 11:42:17 +08:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed There is a null-ptr-deref when xps sysfs alloc failed: BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0 Read of size 8 at addr 0000000000000030 by task gssproxy/457 CPU: 5 PID: 457 Comm: gssproxy Not tainted 6.0.0-09040-g02357b27ee03 #9 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 kasan_report+0xa3/0x120 sysfs_do_create_link_sd+0x40/0xd0 rpc_sysfs_client_setup+0x161/0x1b0 rpc_new_client+0x3fc/0x6e0 rpc_create_xprt+0x71/0x220 rpc_create+0x1d4/0x350 gssp_rpc_create+0xc3/0x160 set_gssp_clnt+0xbc/0x140 write_gssp+0x116/0x1a0 proc_reg_write+0xd6/0x130 vfs_write+0x177/0x690 ksys_write+0xb9/0x150 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 When the xprt_switch sysfs alloc failed, should not add xprt and switch sysfs to it, otherwise, maybe null-ptr-deref; also initialize the 'xps_sysfs' to NULL to avoid oops when destroy it. Fixes: 2a338a543163 ("sunrpc: add a symlink from rpc-client directory to the xprt_switch") Fixes: d408ebe04ac5 ("sunrpc: add add sysfs directory per xprt under each xprt_switch") Fixes: baea99445dd4 ("sunrpc: add xprt_switch direcotry to sunrpc's sysfs") Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2022-10-20 11:42:17 +08:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
SUNRPC: take a xprt offline using sysfs Using sysfs's xprt_state attribute, mark a particular transport offline. It will not be picked during the round-robin selection. It's not allowed to take the main (1st created transport associated with the rpc_client) offline. Also bring a transport back online via sysfs by writing "online" and that would allow for this transport to be picked during the round- robin selection. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-23 23:28:50 -04:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add a symlink from rpc-client directory to the xprt_switch An rpc client uses a transport switch and one ore more transports associated with that switch. Since transports are shared among rpc clients, create a symlink into the xprt_switch directory instead of duplicating entries under each rpc client. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:17 -04:00
sunrpc: Create per-rpc_clnt sysfs kobjects These will eventually have files placed under them for sysfs operations. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:12 -04:00
sunrpc: add xprt_switch direcotry to sunrpc's sysfs Add xprt_switch directory to the sysfs and create individual xprt_swith subdirectories for multipath transport group. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:16 -04:00
sunrpc: add add sysfs directory per xprt under each xprt_switch Add individual transport directories under each transport switch group. For instance, for each nconnect=X connections there will be a transport directory. Naming conventions also identifies transport type -- xprt-<id>-<type> where type is udp, tcp, rdma, local, bc. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2021-06-08 15:59:18 -04:00