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| author | M. Mohan Kumar <mohan@in.ibm.com> | 2010-06-22 19:47:50 +0530 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@gmail.com> | 2010-08-02 14:28:32 -0500 |
| commit | ef56547efa3c88609069e2a91f46e25c31dd536e (patch) | |
| tree | 802bb98048ae36e59fc0bcaa21bd54e5ebf9de99 | |
| parent | 5643135a28464e7c19d8d23a9e0804697a62c84b (diff) | |
| download | linux-ef56547efa3c88609069e2a91f46e25c31dd536e.tar.bz2 | |
9p: Implement LOPEN
Implement 9p2000.L version of open(LOPEN) interface in 9p client.
For LOPEN, no need to convert the flags to and from 9p mode to VFS mode.
Synopsis:
size[4] Tlopen tag[2] fid[4] mode[4]
size[4] Rlopen tag[2] qid[13] iounit[4]
[Fix mode bit format - jvrao@linux.vnet.ibm.com]
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbegren <ericvh@gmail.com>
| -rw-r--r-- | fs/9p/vfs_file.c | 13 | ||||
| -rw-r--r-- | include/net/9p/9p.h | 2 | ||||
| -rw-r--r-- | net/9p/client.c | 17 |
3 files changed, 21 insertions, 11 deletions
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 2d686ec322a0..e97c92bd6f16 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -59,9 +59,13 @@ int v9fs_file_open(struct inode *inode, struct file *file) struct p9_fid *fid; int omode; - P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p \n", inode, file); + P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, file); v9ses = v9fs_inode2v9ses(inode); - omode = v9fs_uflags2omode(file->f_flags, v9fs_proto_dotu(v9ses)); + if (v9fs_proto_dotl(v9ses)) + omode = file->f_flags; + else + omode = v9fs_uflags2omode(file->f_flags, + v9fs_proto_dotu(v9ses)); fid = file->private_data; if (!fid) { fid = v9fs_fid_clone(file->f_path.dentry); @@ -73,11 +77,12 @@ int v9fs_file_open(struct inode *inode, struct file *file) p9_client_clunk(fid); return err; } - if (omode & P9_OTRUNC) { + if (file->f_flags & O_TRUNC) { i_size_write(inode, 0); inode->i_blocks = 0; } - if ((file->f_flags & O_APPEND) && (!v9fs_proto_dotu(v9ses))) + if ((file->f_flags & O_APPEND) && + (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses))) generic_file_llseek(file, 0, SEEK_END); } diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 06d111d61038..cf580a40e299 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -139,6 +139,8 @@ do { \ enum p9_msg_t { P9_TSTATFS = 8, P9_RSTATFS, + P9_TLOPEN = 12, + P9_RLOPEN, P9_TLCREATE = 14, P9_RLCREATE, P9_TSYMLINK = 16, diff --git a/net/9p/client.c b/net/9p/client.c index e580409b1052..c458e042d384 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1016,14 +1016,18 @@ int p9_client_open(struct p9_fid *fid, int mode) struct p9_qid qid; int iounit; - P9_DPRINTK(P9_DEBUG_9P, ">>> TOPEN fid %d mode %d\n", fid->fid, mode); - err = 0; clnt = fid->clnt; + P9_DPRINTK(P9_DEBUG_9P, ">>> %s fid %d mode %d\n", + p9_is_proto_dotl(clnt) ? "TLOPEN" : "TOPEN", fid->fid, mode); + err = 0; if (fid->mode != -1) return -EINVAL; - req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode); + if (p9_is_proto_dotl(clnt)) + req = p9_client_rpc(clnt, P9_TLOPEN, "dd", fid->fid, mode); + else + req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode); if (IS_ERR(req)) { err = PTR_ERR(req); goto error; @@ -1035,10 +1039,9 @@ int p9_client_open(struct p9_fid *fid, int mode) goto free_and_error; } - P9_DPRINTK(P9_DEBUG_9P, "<<< ROPEN qid %x.%llx.%x iounit %x\n", - qid.type, - (unsigned long long)qid.path, - qid.version, iounit); + P9_DPRINTK(P9_DEBUG_9P, "<<< %s qid %x.%llx.%x iounit %x\n", + p9_is_proto_dotl(clnt) ? "RLOPEN" : "ROPEN", qid.type, + (unsigned long long)qid.path, qid.version, iounit); fid->mode = mode; fid->iounit = iounit; |