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| author | Jeff Layton <jlayton@kernel.org> | 2026-03-25 10:40:33 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2026-05-28 11:31:26 -0400 |
| commit | 6ba255c4321f962f03786c5e2d179b076af2cd10 (patch) | |
| tree | 73827427f13bf4313e2b21b3f3f898343a356357 /Documentation | |
| parent | e46fb7920a0b4f61caf137a65496eae5607c54c6 (diff) | |
| download | linux-next-history-6ba255c4321f962f03786c5e2d179b076af2cd10.tar.gz | |
sunrpc: add SUNRPC_CMD_CACHE_FLUSH netlink command
Add a new SUNRPC_CMD_CACHE_FLUSH generic netlink command that allows
userspace to flush the sunrpc auth caches (ip_map and unix_gid) without
writing to /proc/net/rpc/*/flush.
An optional SUNRPC_A_CACHE_FLUSH_MASK u32 attribute selects which caches
to flush (bit 1 = ip_map, bit 2 = unix_gid). If the attribute is
omitted, all sunrpc caches are flushed.
This is used by exportfs to replace its /proc-based cache_flush() with a
netlink equivalent, with /proc fallback for older kernels.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/netlink/specs/sunrpc_cache.yaml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/netlink/specs/sunrpc_cache.yaml b/Documentation/netlink/specs/sunrpc_cache.yaml index ed0ddb61ebcf2..55dabc914dbc8 100644 --- a/Documentation/netlink/specs/sunrpc_cache.yaml +++ b/Documentation/netlink/specs/sunrpc_cache.yaml @@ -76,6 +76,14 @@ attribute-sets: type: nest nested-attributes: unix-gid multi-attr: true + - + name: cache-flush + attributes: + - + name: mask + type: u32 + enum: cache-type + enum-as-flags: true operations: list: @@ -123,6 +131,15 @@ operations: request: attributes: - requests + - + name: cache-flush + doc: Flush sunrpc caches (ip_map and/or unix_gid) + attribute-set: cache-flush + flags: [admin-perm] + do: + request: + attributes: + - mask mcast-groups: list: |