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| author | Jeff Layton <jlayton@kernel.org> | 2026-03-25 17:40:34 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2026-06-01 18:08:18 +0300 |
| commit | 70b7e3526c53d9dd7caccdbeff5b0485640d8cf1 (patch) | |
| tree | e5e4cd79a6ba28f9d6423b98eb9ed431a9645d44 /include/uapi/linux | |
| parent | 565ee23ea2374a0ec42bb70227447baa81fcd196 (diff) | |
| download | linux-70b7e3526c53d9dd7caccdbeff5b0485640d8cf1.tar.xz | |
nfsd: add NFSD_CMD_CACHE_FLUSH netlink command
Add a new NFSD_CMD_CACHE_FLUSH generic netlink command that allows
userspace to flush the nfsd export caches (svc_export and expkey)
without writing to /proc/net/rpc/*/flush.
An optional NFSD_A_CACHE_FLUSH_MASK u32 attribute selects which caches
to flush (bit 1 = svc_export, bit 2 = expkey). If the attribute is
omitted, all nfsd 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/uapi/linux')
| -rw-r--r-- | include/uapi/linux/nfsd_netlink.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/nfsd_netlink.h b/include/uapi/linux/nfsd_netlink.h index fed7533c1533..060c43675599 100644 --- a/include/uapi/linux/nfsd_netlink.h +++ b/include/uapi/linux/nfsd_netlink.h @@ -198,6 +198,13 @@ enum { }; enum { + NFSD_A_CACHE_FLUSH_MASK = 1, + + __NFSD_A_CACHE_FLUSH_MAX, + NFSD_A_CACHE_FLUSH_MAX = (__NFSD_A_CACHE_FLUSH_MAX - 1) +}; + +enum { NFSD_CMD_RPC_STATUS_GET = 1, NFSD_CMD_THREADS_SET, NFSD_CMD_THREADS_GET, @@ -212,6 +219,7 @@ enum { NFSD_CMD_SVC_EXPORT_SET_REQS, NFSD_CMD_EXPKEY_GET_REQS, NFSD_CMD_EXPKEY_SET_REQS, + NFSD_CMD_CACHE_FLUSH, __NFSD_CMD_MAX, NFSD_CMD_MAX = (__NFSD_CMD_MAX - 1) |