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authorSripathi Kodi <sripathik@in.ibm.com>2010-03-25 12:45:30 +0000
committerEric Van Hensbergen <ericvh@gmail.com>2010-05-21 16:44:33 -0500
commitbda8e7752063cdbdd1d308bc1705400a8cec1aeb (patch)
treecfc751da04d3ffe46d7b7e935f7ceb21b1f8a8d0 /include/net/9p
parent9b6533c9b331ddbba9a40c972d82222ecffbc359 (diff)
downloadop-kernel-dev-bda8e7752063cdbdd1d308bc1705400a8cec1aeb.zip
op-kernel-dev-bda8e7752063cdbdd1d308bc1705400a8cec1aeb.tar.gz
9p: add 9P2000.L statfs operation
I made a V2 of this patch on top of my patches for VFS switches. The change was adding v9fs_statfs pointer to v9fs_super_ops_dotl instead of v9fs_super_ops. statfs - get file system statistics size[4] Tstatfs tag[2] fid[4] size[4] Rstatfs tag[2] type[4] bsize[4] blocks[8] bfree[8] bavail[8] files[8] ffree[8] fsid[8] namelen[4] The statfs message is used to request file system information returned by the statfs(2) system call, which is used by df(1) to report file system and disk space usage. Signed-off-by: Jim Garlick <garlick@llnl.gov> Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'include/net/9p')
-rw-r--r--include/net/9p/9p.h20
-rw-r--r--include/net/9p/client.h1
2 files changed, 21 insertions, 0 deletions
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index a7fb548..59300dc 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -86,6 +86,8 @@ do { \
/**
* enum p9_msg_t - 9P message types
+ * @P9_TSTATFS: file system status request
+ * @P9_RSTATFS: file system status response
* @P9_TVERSION: version handshake request
* @P9_RVERSION: version handshake response
* @P9_TAUTH: request to establish authentication channel
@@ -125,6 +127,8 @@ do { \
*/
enum p9_msg_t {
+ P9_TSTATFS = 8,
+ P9_RSTATFS,
P9_TVERSION = 100,
P9_RVERSION,
P9_TAUTH = 102,
@@ -350,6 +354,22 @@ struct p9_wstat {
};
/* Structures for Protocol Operations */
+struct p9_tstatfs {
+ u32 fid;
+};
+
+struct p9_rstatfs {
+ u32 type;
+ u32 bsize;
+ u64 blocks;
+ u64 bfree;
+ u64 bavail;
+ u64 files;
+ u64 ffree;
+ u64 fsid;
+ u32 namelen;
+};
+
struct p9_tversion {
u32 msize;
struct p9_str version;
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 4f3760a..f83c0d9 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -195,6 +195,7 @@ struct p9_fid {
struct list_head dlist; /* list of all fids attached to a dentry */
};
+int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb);
int p9_client_version(struct p9_client *);
struct p9_client *p9_client_create(const char *dev_name, char *options);
void p9_client_destroy(struct p9_client *clnt);
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