diff options
Diffstat (limited to 'fs/9p/v9fs.c')
| -rw-r--r-- | fs/9p/v9fs.c | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 7d6c2139891..f8b86e92cd6 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -29,6 +29,7 @@ #include <linux/sched.h> #include <linux/parser.h> #include <linux/idr.h> +#include <linux/slab.h> #include <net/9p/9p.h> #include <net/9p/client.h> #include <net/9p/transport.h> @@ -237,11 +238,18 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, return ERR_PTR(-ENOMEM); } + rc = bdi_setup_and_register(&v9ses->bdi, "9p", BDI_CAP_MAP_COPY); + if (rc) { + __putname(v9ses->aname); + __putname(v9ses->uname); + return ERR_PTR(rc); + } + spin_lock(&v9fs_sessionlist_lock); list_add(&v9ses->slist, &v9fs_sessionlist); spin_unlock(&v9fs_sessionlist_lock); - v9ses->flags = V9FS_EXTENDED | V9FS_ACCESS_USER; + v9ses->flags = V9FS_ACCESS_USER; strcpy(v9ses->uname, V9FS_DEFUSER); strcpy(v9ses->aname, V9FS_DEFANAME); v9ses->uid = ~0; @@ -262,13 +270,15 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, goto error; } - if (!v9ses->clnt->dotu) - v9ses->flags &= ~V9FS_EXTENDED; + if (p9_is_proto_dotl(v9ses->clnt)) + v9ses->flags |= V9FS_PROTO_2000L; + else if (p9_is_proto_dotu(v9ses->clnt)) + v9ses->flags |= V9FS_PROTO_2000U; v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ; /* for legacy mode, fall back to V9FS_ACCESS_ANY */ - if (!v9fs_extended(v9ses) && + if (!v9fs_proto_dotu(v9ses) && ((v9ses->flags&V9FS_ACCESS_MASK) == V9FS_ACCESS_USER)) { v9ses->flags &= ~V9FS_ACCESS_MASK; @@ -298,6 +308,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, return fid; error: + bdi_destroy(&v9ses->bdi); return ERR_PTR(retval); } @@ -323,6 +334,8 @@ void v9fs_session_close(struct v9fs_session_info *v9ses) __putname(v9ses->uname); __putname(v9ses->aname); + bdi_destroy(&v9ses->bdi); + spin_lock(&v9fs_sessionlist_lock); list_del(&v9ses->slist); spin_unlock(&v9fs_sessionlist_lock); @@ -340,6 +353,19 @@ void v9fs_session_cancel(struct v9fs_session_info *v9ses) { p9_client_disconnect(v9ses->clnt); } +/** + * v9fs_session_begin_cancel - Begin terminate of a session + * @v9ses: session to terminate + * + * After this call we don't allow any request other than clunk. + */ + +void v9fs_session_begin_cancel(struct v9fs_session_info *v9ses) +{ + P9_DPRINTK(P9_DEBUG_ERROR, "begin cancel session %p\n", v9ses); + p9_client_begin_disconnect(v9ses->clnt); +} + extern int v9fs_error_init(void); static struct kobject *v9fs_kobj; |