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author | Sripathi Kodi <sripathik@in.ibm.com> | 2010-03-25 12:45:30 +0000 |
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committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-05-21 16:44:33 -0500 |
commit | bda8e7752063cdbdd1d308bc1705400a8cec1aeb (patch) | |
tree | cfc751da04d3ffe46d7b7e935f7ceb21b1f8a8d0 /net/9p | |
parent | 9b6533c9b331ddbba9a40c972d82222ecffbc359 (diff) | |
download | linux-stable-bda8e7752063cdbdd1d308bc1705400a8cec1aeb.tar.gz linux-stable-bda8e7752063cdbdd1d308bc1705400a8cec1aeb.tar.bz2 linux-stable-bda8e7752063cdbdd1d308bc1705400a8cec1aeb.zip |
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 'net/9p')
-rw-r--r-- | net/9p/client.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/net/9p/client.c b/net/9p/client.c index e2d314674965..430a1c4a7c6f 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1365,3 +1365,42 @@ error: return err; } EXPORT_SYMBOL(p9_client_wstat); + +int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb) +{ + int err; + struct p9_req_t *req; + struct p9_client *clnt; + + err = 0; + clnt = fid->clnt; + + P9_DPRINTK(P9_DEBUG_9P, ">>> TSTATFS fid %d\n", fid->fid); + + req = p9_client_rpc(clnt, P9_TSTATFS, "d", fid->fid); + if (IS_ERR(req)) { + err = PTR_ERR(req); + goto error; + } + + err = p9pdu_readf(req->rc, clnt->proto_version, "ddqqqqqqd", &sb->type, + &sb->bsize, &sb->blocks, &sb->bfree, &sb->bavail, + &sb->files, &sb->ffree, &sb->fsid, &sb->namelen); + if (err) { + p9pdu_dump(1, req->rc); + p9_free_req(clnt, req); + goto error; + } + + P9_DPRINTK(P9_DEBUG_9P, "<<< RSTATFS fid %d type 0x%lx bsize %ld " + "blocks %llu bfree %llu bavail %llu files %llu ffree %llu " + "fsid %llu namelen %ld\n", + fid->fid, (long unsigned int)sb->type, (long int)sb->bsize, + sb->blocks, sb->bfree, sb->bavail, sb->files, sb->ffree, + sb->fsid, (long int)sb->namelen); + + p9_free_req(clnt, req); +error: + return err; +} +EXPORT_SYMBOL(p9_client_statfs); |