[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/fs/nfsd/lockd.c b/ap/os/linux/linux-3.4.x/fs/nfsd/lockd.c
new file mode 100644
index 0000000..77e7a5c
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/nfsd/lockd.c
@@ -0,0 +1,77 @@
+/*
+ * This file contains all the stubs needed when communicating with lockd.
+ * This level of indirection is necessary so we can run nfsd+lockd without
+ * requiring the nfs client to be compiled in/loaded, and vice versa.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#include <linux/file.h>
+#include <linux/lockd/bind.h>
+#include "nfsd.h"
+#include "vfs.h"
+
+#define NFSDDBG_FACILITY NFSDDBG_LOCKD
+
+#ifdef CONFIG_LOCKD_V4
+#define nlm_stale_fh nlm4_stale_fh
+#define nlm_failed nlm4_failed
+#else
+#define nlm_stale_fh nlm_lck_denied_nolocks
+#define nlm_failed nlm_lck_denied_nolocks
+#endif
+/*
+ * Note: we hold the dentry use count while the file is open.
+ */
+static __be32
+nlm_fopen(struct svc_rqst *rqstp, struct nfs_fh *f, struct file **filp)
+{
+ __be32 nfserr;
+ struct svc_fh fh;
+
+ /* must initialize before using! but maxsize doesn't matter */
+ fh_init(&fh,0);
+ fh.fh_handle.fh_size = f->size;
+ memcpy((char*)&fh.fh_handle.fh_base, f->data, f->size);
+ fh.fh_export = NULL;
+
+ nfserr = nfsd_open(rqstp, &fh, S_IFREG, NFSD_MAY_LOCK, filp);
+ fh_put(&fh);
+ /* We return nlm error codes as nlm doesn't know
+ * about nfsd, but nfsd does know about nlm..
+ */
+ switch (nfserr) {
+ case nfs_ok:
+ return 0;
+ case nfserr_dropit:
+ return nlm_drop_reply;
+ case nfserr_stale:
+ return nlm_stale_fh;
+ default:
+ return nlm_failed;
+ }
+}
+
+static void
+nlm_fclose(struct file *filp)
+{
+ fput(filp);
+}
+
+static struct nlmsvc_binding nfsd_nlm_ops = {
+ .fopen = nlm_fopen, /* open file for locking */
+ .fclose = nlm_fclose, /* close file */
+};
+
+void
+nfsd_lockd_init(void)
+{
+ dprintk("nfsd: initializing lockd\n");
+ nlmsvc_ops = &nfsd_nlm_ops;
+}
+
+void
+nfsd_lockd_shutdown(void)
+{
+ nlmsvc_ops = NULL;
+}