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| author | Jeff Layton <jlayton@kernel.org> | 2026-03-25 17:40:33 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2026-06-01 18:08:18 +0300 |
| commit | 565ee23ea2374a0ec42bb70227447baa81fcd196 (patch) | |
| tree | 63d854ad04089691c5a3094232b105e0da5d07e2 /include | |
| parent | 01c2305795a3b6b164df48e72b12022a68fd60c1 (diff) | |
| download | linux-565ee23ea2374a0ec42bb70227447baa81fcd196.tar.xz | |
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 'include')
| -rw-r--r-- | include/uapi/linux/sunrpc_netlink.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/sunrpc_netlink.h b/include/uapi/linux/sunrpc_netlink.h index d71c623e92ab..34677f0ec2f9 100644 --- a/include/uapi/linux/sunrpc_netlink.h +++ b/include/uapi/linux/sunrpc_netlink.h @@ -60,11 +60,19 @@ enum { }; enum { + SUNRPC_A_CACHE_FLUSH_MASK = 1, + + __SUNRPC_A_CACHE_FLUSH_MAX, + SUNRPC_A_CACHE_FLUSH_MAX = (__SUNRPC_A_CACHE_FLUSH_MAX - 1) +}; + +enum { SUNRPC_CMD_CACHE_NOTIFY = 1, SUNRPC_CMD_IP_MAP_GET_REQS, SUNRPC_CMD_IP_MAP_SET_REQS, SUNRPC_CMD_UNIX_GID_GET_REQS, SUNRPC_CMD_UNIX_GID_SET_REQS, + SUNRPC_CMD_CACHE_FLUSH, __SUNRPC_CMD_MAX, SUNRPC_CMD_MAX = (__SUNRPC_CMD_MAX - 1) |