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| author | Olga Kornievskaia <kolga@netapp.com> | 2022-03-16 23:24:26 +0100 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2022-03-21 15:36:49 +0100 |
| commit | a43bf604446414103b7535f38e739b65601c4fb2 (patch) | |
| tree | cd7542ccddf44e1691a96dea6c3de9f3bd083159 /fs/nfs/fs_context.c | |
| parent | SUNRPC: change locking for xs_swap_enable/disable (diff) | |
| download | linux-a43bf604446414103b7535f38e739b65601c4fb2.tar.xz linux-a43bf604446414103b7535f38e739b65601c4fb2.zip | |
NFSv4.1 provide mount option to toggle trunking discovery
Introduce a new mount option -- trunkdiscovery,notrunkdiscovery -- to
toggle whether or not the client will engage in actively discovery
of trunking locations.
v2 make notrunkdiscovery default
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Fixes: 1976b2b31462 ("NFSv4.1 query for fs_location attr on a new file system")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/fs_context.c')
| -rw-r--r-- | fs/nfs/fs_context.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfs/fs_context.c b/fs/nfs/fs_context.c index ea17fa1f31ec..e2d59bb5e6bb 100644 --- a/fs/nfs/fs_context.c +++ b/fs/nfs/fs_context.c @@ -80,6 +80,7 @@ enum nfs_param { Opt_source, Opt_tcp, Opt_timeo, + Opt_trunkdiscovery, Opt_udp, Opt_v, Opt_vers, @@ -180,6 +181,7 @@ static const struct fs_parameter_spec nfs_fs_parameters[] = { fsparam_string("source", Opt_source), fsparam_flag ("tcp", Opt_tcp), fsparam_u32 ("timeo", Opt_timeo), + fsparam_flag_no("trunkdiscovery", Opt_trunkdiscovery), fsparam_flag ("udp", Opt_udp), fsparam_flag ("v2", Opt_v), fsparam_flag ("v3", Opt_v), @@ -529,6 +531,12 @@ static int nfs_fs_context_parse_param(struct fs_context *fc, else ctx->flags &= ~NFS_MOUNT_NOCTO; break; + case Opt_trunkdiscovery: + if (result.negated) + ctx->flags &= ~NFS_MOUNT_TRUNK_DISCOVERY; + else + ctx->flags |= NFS_MOUNT_TRUNK_DISCOVERY; + break; case Opt_ac: if (result.negated) ctx->flags |= NFS_MOUNT_NOAC; |