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| author | David Howells <dhowells@redhat.com> | 2017-07-05 16:25:37 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-07-11 06:08:58 -0400 |
| commit | c4fac9100456995c10b65c13be84554258ed7fc8 (patch) | |
| tree | ea395c955dfac2337eff1a4608caea5f3a26701b /net/9p/client.c | |
| parent | 86a1da6d30ad727c2a9cc5d6a51bff6d830036b5 (diff) | |
| download | linux-c4fac9100456995c10b65c13be84554258ed7fc8.tar.gz linux-c4fac9100456995c10b65c13be84554258ed7fc8.tar.bz2 linux-c4fac9100456995c10b65c13be84554258ed7fc8.zip | |
9p: Implement show_options
Implement the show_options superblock op for 9p as part of a bid to get
rid of s_options and generic_show_options() to make it easier to implement
a context-based mount where the mount options can be passed individually
over a file descriptor.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Eric Van Hensbergen <ericvh@gmail.com>
cc: Ron Minnich <rminnich@sandia.gov>
cc: Latchesar Ionkov <lucho@ionkov.net>
cc: v9fs-developer@lists.sourceforge.net
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/9p/client.c')
| -rw-r--r-- | net/9p/client.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/net/9p/client.c b/net/9p/client.c index 1218fb3b52da..4674235b0d9b 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -37,6 +37,7 @@ #include <linux/uio.h> #include <net/9p/9p.h> #include <linux/parser.h> +#include <linux/seq_file.h> #include <net/9p/client.h> #include <net/9p/transport.h> #include "protocol.h" @@ -77,6 +78,30 @@ inline int p9_is_proto_dotu(struct p9_client *clnt) } EXPORT_SYMBOL(p9_is_proto_dotu); +int p9_show_client_options(struct seq_file *m, struct p9_client *clnt) +{ + if (clnt->msize != 8192) + seq_printf(m, ",msize=%u", clnt->msize); + seq_printf(m, "trans=%s", clnt->trans_mod->name); + + switch (clnt->proto_version) { + case p9_proto_legacy: + seq_puts(m, ",noextend"); + break; + case p9_proto_2000u: + seq_puts(m, ",version=9p2000.u"); + break; + case p9_proto_2000L: + /* Default */ + break; + } + + if (clnt->trans_mod->show_options) + return clnt->trans_mod->show_options(m, clnt); + return 0; +} +EXPORT_SYMBOL(p9_show_client_options); + /* * Some error codes are taken directly from the server replies, * make sure they are valid. |