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| author | Jeff Layton <jlayton@kernel.org> | 2026-03-25 10:40:31 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2026-05-28 11:31:26 -0400 |
| commit | 9a5ed8d15664d92f9274d58f07a90aee0f8202df (patch) | |
| tree | 912f1f38418a5cea40fd9d04b9e124bd977a4f90 /net | |
| parent | 59302fe702de9d4b77aeea06c864145312eecc6e (diff) | |
| download | linux-next-history-9a5ed8d15664d92f9274d58f07a90aee0f8202df.tar.gz | |
nfsd: add netlink upcall for the svc_export cache
Add netlink-based cache upcall support for the svc_export (nfsd.export)
cache to Documentation/netlink/specs/nfsd.yaml and regenerate the
resulting files.
Implement nfsd_cache_notify() which sends a NFSD_CMD_CACHE_NOTIFY
multicast event to the "exportd" group, carrying the cache type so
userspace knows which cache has pending requests.
Implement nfsd_nl_svc_export_get_reqs_dumpit() which snapshots
pending svc_export cache requests and sends each entry's seqno,
client name, and path over netlink.
Implement nfsd_nl_svc_export_set_reqs_doit() which parses svc_export
cache responses from userspace (client, path, expiry, flags, anon
uid/gid, fslocations, uuid, secinfo, xprtsec, fsid, or negative
flag) and updates the cache via svc_export_lookup() /
svc_export_update().
Wire up the svc_export_notify() callback in svc_export_cache_template
so cache misses trigger NFSD_CMD_CACHE_NOTIFY multicast events with
NFSD_CACHE_TYPE_SVC_EXPORT.
Note that the export-flags and xprtsec-mode enums are organized to match
their counterparts in include/uapi/linux/nfsd/export.h. The intent is
that future export options will only be added to the netlink headers,
which should eliminate the need to keep so much in sync.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/netlink.c | 17 | ||||
| -rw-r--r-- | net/sunrpc/netlink.h | 3 |
2 files changed, 9 insertions, 11 deletions
diff --git a/net/sunrpc/netlink.c b/net/sunrpc/netlink.c index 41843f007c37a..3ac6b0cac5fec 100644 --- a/net/sunrpc/netlink.c +++ b/net/sunrpc/netlink.c @@ -6,7 +6,6 @@ #include <net/netlink.h> #include <net/genetlink.h> -#include <linux/sunrpc/cache.h> #include "netlink.h" @@ -22,6 +21,14 @@ const struct nla_policy sunrpc_ip_map_nl_policy[SUNRPC_A_IP_MAP_EXPIRY + 1] = { [SUNRPC_A_IP_MAP_EXPIRY] = { .type = NLA_U64, }, }; +const struct nla_policy sunrpc_unix_gid_nl_policy[SUNRPC_A_UNIX_GID_EXPIRY + 1] = { + [SUNRPC_A_UNIX_GID_SEQNO] = { .type = NLA_U64, }, + [SUNRPC_A_UNIX_GID_UID] = { .type = NLA_U32, }, + [SUNRPC_A_UNIX_GID_GIDS] = { .type = NLA_U32, }, + [SUNRPC_A_UNIX_GID_NEGATIVE] = { .type = NLA_FLAG, }, + [SUNRPC_A_UNIX_GID_EXPIRY] = { .type = NLA_U64, }, +}; + /* SUNRPC_CMD_IP_MAP_GET_REQS - dump */ static const struct nla_policy sunrpc_ip_map_get_reqs_nl_policy[SUNRPC_A_IP_MAP_REQS_REQUESTS + 1] = { [SUNRPC_A_IP_MAP_REQS_REQUESTS] = NLA_POLICY_NESTED(sunrpc_ip_map_nl_policy), @@ -32,14 +39,6 @@ static const struct nla_policy sunrpc_ip_map_set_reqs_nl_policy[SUNRPC_A_IP_MAP_ [SUNRPC_A_IP_MAP_REQS_REQUESTS] = NLA_POLICY_NESTED(sunrpc_ip_map_nl_policy), }; -const struct nla_policy sunrpc_unix_gid_nl_policy[SUNRPC_A_UNIX_GID_EXPIRY + 1] = { - [SUNRPC_A_UNIX_GID_SEQNO] = { .type = NLA_U64, }, - [SUNRPC_A_UNIX_GID_UID] = { .type = NLA_U32, }, - [SUNRPC_A_UNIX_GID_GIDS] = { .type = NLA_U32, }, - [SUNRPC_A_UNIX_GID_NEGATIVE] = { .type = NLA_FLAG, }, - [SUNRPC_A_UNIX_GID_EXPIRY] = { .type = NLA_U64, }, -}; - /* SUNRPC_CMD_UNIX_GID_GET_REQS - dump */ static const struct nla_policy sunrpc_unix_gid_get_reqs_nl_policy[SUNRPC_A_UNIX_GID_REQS_REQUESTS + 1] = { [SUNRPC_A_UNIX_GID_REQS_REQUESTS] = NLA_POLICY_NESTED(sunrpc_unix_gid_nl_policy), diff --git a/net/sunrpc/netlink.h b/net/sunrpc/netlink.h index 16b87519a4096..2aec57d27a586 100644 --- a/net/sunrpc/netlink.h +++ b/net/sunrpc/netlink.h @@ -18,8 +18,7 @@ extern const struct nla_policy sunrpc_unix_gid_nl_policy[SUNRPC_A_UNIX_GID_EXPIR int sunrpc_nl_ip_map_get_reqs_dumpit(struct sk_buff *skb, struct netlink_callback *cb); -int sunrpc_nl_ip_map_set_reqs_doit(struct sk_buff *skb, - struct genl_info *info); +int sunrpc_nl_ip_map_set_reqs_doit(struct sk_buff *skb, struct genl_info *info); int sunrpc_nl_unix_gid_get_reqs_dumpit(struct sk_buff *skb, struct netlink_callback *cb); int sunrpc_nl_unix_gid_set_reqs_doit(struct sk_buff *skb, |