[PATCH] v9fs: Support to force umount

Support for force umount

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>

1 files changed, 20 insertions, 0 deletions

diff --git a/fs/9p/mux.c b/fs/9p/mux.c
index 8ebc1af2c245..0854bef58c16 100644
--- a/fs/9p/mux.c
+++ b/fs/9p/mux.c
@@ -324,6 +324,26 @@ v9fs_mux_rpc(struct v9fs_session_info *v9ses, struct v9fs_fcall *tcall,
 }
 
 /**
+ * v9fs_mux_cancel_requests - cancels all pending requests
+ *
+ * @v9ses: session info structure
+ * @err: error code to return to the requests
+ */
+void v9fs_mux_cancel_requests(struct v9fs_session_info *v9ses, int err)
+{
+        struct v9fs_rpcreq *rptr;
+        struct v9fs_rpcreq *rreq;
+
+        dprintk(DEBUG_MUX, " %d\n", err);
+        spin_lock(&v9ses->muxlock);
+        list_for_each_entry_safe(rreq, rptr, &v9ses->mux_fcalls, next) {
+                rreq->err = err;
+        }
+        spin_unlock(&v9ses->muxlock);
+        wake_up_all(&v9ses->read_wait);
+}
+
+/**
  * v9fs_recvproc - kproc to handle demultiplexing responses
  * @data: session info structure
  *