[PATCH] v9fs: add extension field to Tcreate
Implement a new way of creating special files. Instead of Tcreate+Twstat,
add one more field to Tcreate that contains special file description.
Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index de3a129..1144d59 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -69,29 +69,30 @@
fid = v9fs_get_idpool(&v9ses->fidpool);
if (fid < 0) {
- eprintk(KERN_WARNING, "newfid fails!\n");
- return -ENOSPC;
- }
+ eprintk(KERN_WARNING, "newfid fails!\n");
+ return -ENOSPC;
+ }
err = v9fs_t_walk(v9ses, vfid->fid, fid, NULL, NULL);
if (err < 0) {
- dprintk(DEBUG_ERROR, "rewalk didn't work\n");
+ dprintk(DEBUG_ERROR, "rewalk didn't work\n");
goto put_fid;
}
+ /* TODO: do special things for O_EXCL, O_NOFOLLOW, O_SYNC */
+ /* translate open mode appropriately */
+ omode = v9fs_uflags2omode(file->f_flags);
+ err = v9fs_t_open(v9ses, fid, omode, &fcall);
+ if (err < 0) {
+ PRINT_FCALL_ERROR("open failed", fcall);
+ goto clunk_fid;
+ }
+
vfid = kmalloc(sizeof(struct v9fs_fid), GFP_KERNEL);
if (vfid == NULL) {
dprintk(DEBUG_ERROR, "out of memory\n");
+ err = -ENOMEM;
goto clunk_fid;
- }
-
- /* TODO: do special things for O_EXCL, O_NOFOLLOW, O_SYNC */
- /* translate open mode appropriately */
- omode = v9fs_uflags2omode(file->f_flags);
- err = v9fs_t_open(v9ses, fid, omode, &fcall);
- if (err < 0) {
- PRINT_FCALL_ERROR("open failed", fcall);
- goto destroy_vfid;
}
file->private_data = vfid;
@@ -106,15 +107,12 @@
return 0;
-destroy_vfid:
- v9fs_fid_destroy(vfid);
-
clunk_fid:
v9fs_t_clunk(v9ses, fid);
put_fid:
v9fs_put_idpool(fid, &v9ses->fidpool);
- kfree(fcall);
+ kfree(fcall);
return err;
}