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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2010-03-29 18:13:59 -0500
committerEric Van Hensbergen <ericvh@gmail.com>2010-04-05 10:37:36 -0500
commit6d96d3ab7aea5f0e75205a0c97f8d1fdf82c5287 (patch)
treea4dfa0472e2e670de1da7e7c0905da12d4608ab4 /net
parentd994f4058d9f9be7e44529b55fc6be6552901ead (diff)
downloadop-kernel-dev-6d96d3ab7aea5f0e75205a0c97f8d1fdf82c5287.zip
op-kernel-dev-6d96d3ab7aea5f0e75205a0c97f8d1fdf82c5287.tar.gz
9p: Make sure we are able to clunk the cached fid on umount
dcache prune happen on umount. So we cannot mark the client satus disconnect. That will prevent a 9p call to the server Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'net')
-rw-r--r--net/9p/client.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/net/9p/client.c b/net/9p/client.c
index e3e5bf4..a037a29 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -533,7 +533,12 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...)
P9_DPRINTK(P9_DEBUG_MUX, "client %p op %d\n", c, type);
- if (c->status != Connected)
+ /* we allow for any status other than disconnected */
+ if (c->status == Disconnected)
+ return ERR_PTR(-EIO);
+
+ /* if status is begin_disconnected we allow only clunk request */
+ if ((c->status == BeginDisconnect) && (type != P9_TCLUNK))
return ERR_PTR(-EIO);
if (signal_pending(current)) {
@@ -799,8 +804,10 @@ void p9_client_destroy(struct p9_client *clnt)
v9fs_put_trans(clnt->trans_mod);
- list_for_each_entry_safe(fid, fidptr, &clnt->fidlist, flist)
+ list_for_each_entry_safe(fid, fidptr, &clnt->fidlist, flist) {
+ printk(KERN_INFO "Found fid %d not clunked\n", fid->fid);
p9_fid_destroy(fid);
+ }
if (clnt->fidpool)
p9_idpool_destroy(clnt->fidpool);
@@ -818,6 +825,13 @@ void p9_client_disconnect(struct p9_client *clnt)
}
EXPORT_SYMBOL(p9_client_disconnect);
+void p9_client_begin_disconnect(struct p9_client *clnt)
+{
+ P9_DPRINTK(P9_DEBUG_9P, "clnt %p\n", clnt);
+ clnt->status = BeginDisconnect;
+}
+EXPORT_SYMBOL(p9_client_begin_disconnect);
+
struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
char *uname, u32 n_uname, char *aname)
{
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