Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 412 deletions

diff --git a/ANDROID_3.4.5/fs/nfs/callback.c b/ANDROID_3.4.5/fs/nfs/callback.c
deleted file mode 100644
index 38a44c67..00000000
--- a/ANDROID_3.4.5/fs/nfs/callback.c
+++ /dev/null
@@ -1,412 +0,0 @@
-/*
- * linux/fs/nfs/callback.c
- *
- * Copyright (C) 2004 Trond Myklebust
- *
- * NFSv4 callback handling
- */
-
-#include <linux/completion.h>
-#include <linux/ip.h>
-#include <linux/module.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/sunrpc/svcsock.h>
-#include <linux/nfs_fs.h>
-#include <linux/mutex.h>
-#include <linux/freezer.h>
-#include <linux/kthread.h>
-#include <linux/sunrpc/svcauth_gss.h>
-#include <linux/sunrpc/bc_xprt.h>
-
-#include <net/inet_sock.h>
-
-#include "nfs4_fs.h"
-#include "callback.h"
-#include "internal.h"
-
-#define NFSDBG_FACILITY NFSDBG_CALLBACK
-
-struct nfs_callback_data {
-	unsigned int users;
-	struct svc_serv *serv;
-	struct svc_rqst *rqst;
-	struct task_struct *task;
-};
-
-static struct nfs_callback_data nfs_callback_info[NFS4_MAX_MINOR_VERSION + 1];
-static DEFINE_MUTEX(nfs_callback_mutex);
-static struct svc_program nfs4_callback_program;
-
-unsigned int nfs_callback_set_tcpport;
-unsigned short nfs_callback_tcpport;
-unsigned short nfs_callback_tcpport6;
-#define NFS_CALLBACK_MAXPORTNR (65535U)
-
-static int param_set_portnr(const char *val, const struct kernel_param *kp)
-{
-	unsigned long num;
-	int ret;
-
-	if (!val)
-		return -EINVAL;
-	ret = strict_strtoul(val, 0, &num);
-	if (ret == -EINVAL || num > NFS_CALLBACK_MAXPORTNR)
-		return -EINVAL;
-	*((unsigned int *)kp->arg) = num;
-	return 0;
-}
-static struct kernel_param_ops param_ops_portnr = {
-	.set = param_set_portnr,
-	.get = param_get_uint,
-};
-#define param_check_portnr(name, p) __param_check(name, p, unsigned int);
-
-module_param_named(callback_tcpport, nfs_callback_set_tcpport, portnr, 0644);
-
-/*
- * This is the NFSv4 callback kernel thread.
- */
-static int
-nfs4_callback_svc(void *vrqstp)
-{
-	int err, preverr = 0;
-	struct svc_rqst *rqstp = vrqstp;
-
-	set_freezable();
-
-	while (!kthread_should_stop()) {
-		/*
-		 * Listen for a request on the socket
-		 */
-		err = svc_recv(rqstp, MAX_SCHEDULE_TIMEOUT);
-		if (err == -EAGAIN || err == -EINTR) {
-			preverr = err;
-			continue;
-		}
-		if (err < 0) {
-			if (err != preverr) {
-				printk(KERN_WARNING "NFS: %s: unexpected error "
-					"from svc_recv (%d)\n", __func__, err);
-				preverr = err;
-			}
-			schedule_timeout_uninterruptible(HZ);
-			continue;
-		}
-		preverr = err;
-		svc_process(rqstp);
-	}
-	return 0;
-}
-
-/*
- * Prepare to bring up the NFSv4 callback service
- */
-static struct svc_rqst *
-nfs4_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
-{
-	int ret;
-
-	ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET,
-				nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
-	if (ret <= 0)
-		goto out_err;
-	nfs_callback_tcpport = ret;
-	dprintk("NFS: Callback listener port = %u (af %u)\n",
-			nfs_callback_tcpport, PF_INET);
-
-	ret = svc_create_xprt(serv, "tcp", &init_net, PF_INET6,
-				nfs_callback_set_tcpport, SVC_SOCK_ANONYMOUS);
-	if (ret > 0) {
-		nfs_callback_tcpport6 = ret;
-		dprintk("NFS: Callback listener port = %u (af %u)\n",
-				nfs_callback_tcpport6, PF_INET6);
-	} else if (ret == -EAFNOSUPPORT)
-		ret = 0;
-	else
-		goto out_err;
-
-	return svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE);
-
-out_err:
-	if (ret == 0)
-		ret = -ENOMEM;
-	return ERR_PTR(ret);
-}
-
-#if defined(CONFIG_NFS_V4_1)
-/*
- * The callback service for NFSv4.1 callbacks
- */
-static int
-nfs41_callback_svc(void *vrqstp)
-{
-	struct svc_rqst *rqstp = vrqstp;
-	struct svc_serv *serv = rqstp->rq_server;
-	struct rpc_rqst *req;
-	int error;
-	DEFINE_WAIT(wq);
-
-	set_freezable();
-
-	while (!kthread_should_stop()) {
-		prepare_to_wait(&serv->sv_cb_waitq, &wq, TASK_INTERRUPTIBLE);
-		spin_lock_bh(&serv->sv_cb_lock);
-		if (!list_empty(&serv->sv_cb_list)) {
-			req = list_first_entry(&serv->sv_cb_list,
-					struct rpc_rqst, rq_bc_list);
-			list_del(&req->rq_bc_list);
-			spin_unlock_bh(&serv->sv_cb_lock);
-			dprintk("Invoking bc_svc_process()\n");
-			error = bc_svc_process(serv, req, rqstp);
-			dprintk("bc_svc_process() returned w/ error code= %d\n",
-				error);
-		} else {
-			spin_unlock_bh(&serv->sv_cb_lock);
-			schedule();
-		}
-		finish_wait(&serv->sv_cb_waitq, &wq);
-	}
-	return 0;
-}
-
-/*
- * Bring up the NFSv4.1 callback service
- */
-static struct svc_rqst *
-nfs41_callback_up(struct svc_serv *serv, struct rpc_xprt *xprt)
-{
-	struct svc_rqst *rqstp;
-	int ret;
-
-	/*
-	 * Create an svc_sock for the back channel service that shares the
-	 * fore channel connection.
-	 * Returns the input port (0) and sets the svc_serv bc_xprt on success
-	 */
-	ret = svc_create_xprt(serv, "tcp-bc", &init_net, PF_INET, 0,
-			      SVC_SOCK_ANONYMOUS);
-	if (ret < 0) {
-		rqstp = ERR_PTR(ret);
-		goto out;
-	}
-
-	/*
-	 * Save the svc_serv in the transport so that it can
-	 * be referenced when the session backchannel is initialized
-	 */
-	xprt->bc_serv = serv;
-
-	INIT_LIST_HEAD(&serv->sv_cb_list);
-	spin_lock_init(&serv->sv_cb_lock);
-	init_waitqueue_head(&serv->sv_cb_waitq);
-	rqstp = svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE);
-	if (IS_ERR(rqstp)) {
-		svc_xprt_put(serv->sv_bc_xprt);
-		serv->sv_bc_xprt = NULL;
-	}
-out:
-	dprintk("--> %s return %ld\n", __func__,
-		IS_ERR(rqstp) ? PTR_ERR(rqstp) : 0);
-	return rqstp;
-}
-
-static inline int nfs_minorversion_callback_svc_setup(u32 minorversion,
-		struct svc_serv *serv, struct rpc_xprt *xprt,
-		struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp))
-{
-	if (minorversion) {
-		*rqstpp = nfs41_callback_up(serv, xprt);
-		*callback_svc = nfs41_callback_svc;
-	}
-	return minorversion;
-}
-
-static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
-		struct nfs_callback_data *cb_info)
-{
-	if (minorversion)
-		xprt->bc_serv = cb_info->serv;
-}
-#else
-static inline int nfs_minorversion_callback_svc_setup(u32 minorversion,
-		struct svc_serv *serv, struct rpc_xprt *xprt,
-		struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp))
-{
-	return 0;
-}
-
-static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt,
-		struct nfs_callback_data *cb_info)
-{
-}
-#endif /* CONFIG_NFS_V4_1 */
-
-/*
- * Bring up the callback thread if it is not already up.
- */
-int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
-{
-	struct svc_serv *serv = NULL;
-	struct svc_rqst *rqstp;
-	int (*callback_svc)(void *vrqstp);
-	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
-	char svc_name[12];
-	int ret = 0;
-	int minorversion_setup;
-	struct net *net = &init_net;
-
-	mutex_lock(&nfs_callback_mutex);
-	if (cb_info->users++ || cb_info->task != NULL) {
-		nfs_callback_bc_serv(minorversion, xprt, cb_info);
-		goto out;
-	}
-	serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
-	if (!serv) {
-		ret = -ENOMEM;
-		goto out_err;
-	}
-
-	ret = svc_bind(serv, net);
-	if (ret < 0) {
-		printk(KERN_WARNING "NFS: bind callback service failed\n");
-		goto out_err;
-	}
-
-	minorversion_setup =  nfs_minorversion_callback_svc_setup(minorversion,
-					serv, xprt, &rqstp, &callback_svc);
-	if (!minorversion_setup) {
-		/* v4.0 callback setup */
-		rqstp = nfs4_callback_up(serv, xprt);
-		callback_svc = nfs4_callback_svc;
-	}
-
-	if (IS_ERR(rqstp)) {
-		ret = PTR_ERR(rqstp);
-		goto out_err;
-	}
-
-	svc_sock_update_bufs(serv);
-
-	sprintf(svc_name, "nfsv4.%u-svc", minorversion);
-	cb_info->serv = serv;
-	cb_info->rqst = rqstp;
-	cb_info->task = kthread_run(callback_svc, cb_info->rqst, svc_name);
-	if (IS_ERR(cb_info->task)) {
-		ret = PTR_ERR(cb_info->task);
-		svc_exit_thread(cb_info->rqst);
-		cb_info->rqst = NULL;
-		cb_info->task = NULL;
-		goto out_err;
-	}
-out:
-	/*
-	 * svc_create creates the svc_serv with sv_nrthreads == 1, and then
-	 * svc_prepare_thread increments that. So we need to call svc_destroy
-	 * on both success and failure so that the refcount is 1 when the
-	 * thread exits.
-	 */
-	if (serv)
-		svc_destroy(serv);
-	mutex_unlock(&nfs_callback_mutex);
-	return ret;
-out_err:
-	dprintk("NFS: Couldn't create callback socket or server thread; "
-		"err = %d\n", ret);
-	cb_info->users--;
-	if (serv)
-		svc_shutdown_net(serv, net);
-	goto out;
-}
-
-/*
- * Kill the callback thread if it's no longer being used.
- */
-void nfs_callback_down(int minorversion)
-{
-	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
-
-	mutex_lock(&nfs_callback_mutex);
-	cb_info->users--;
-	if (cb_info->users == 0 && cb_info->task != NULL) {
-		kthread_stop(cb_info->task);
-		svc_shutdown_net(cb_info->serv, &init_net);
-		svc_exit_thread(cb_info->rqst);
-		cb_info->serv = NULL;
-		cb_info->rqst = NULL;
-		cb_info->task = NULL;
-	}
-	mutex_unlock(&nfs_callback_mutex);
-}
-
-/* Boolean check of RPC_AUTH_GSS principal */
-int
-check_gss_callback_principal(struct nfs_client *clp, struct svc_rqst *rqstp)
-{
-	char *p = svc_gss_principal(rqstp);
-
-	if (rqstp->rq_authop->flavour != RPC_AUTH_GSS)
-		return 1;
-
-	/* No RPC_AUTH_GSS on NFSv4.1 back channel yet */
-	if (clp->cl_minorversion != 0)
-		return 0;
-	/*
-	 * It might just be a normal user principal, in which case
-	 * userspace won't bother to tell us the name at all.
-	 */
-	if (p == NULL)
-		return 0;
-
-	/* Expect a GSS_C_NT_HOSTBASED_NAME like "nfs@serverhostname" */
-
-	if (memcmp(p, "nfs@", 4) != 0)
-		return 0;
-	p += 4;
-	if (strcmp(p, clp->cl_hostname) != 0)
-		return 0;
-	return 1;
-}
-
-/*
- * pg_authenticate method for nfsv4 callback threads.
- *
- * The authflavor has been negotiated, so an incorrect flavor is a server
- * bug. Drop packets with incorrect authflavor.
- *
- * All other checking done after NFS decoding where the nfs_client can be
- * found in nfs4_callback_compound
- */
-static int nfs_callback_authenticate(struct svc_rqst *rqstp)
-{
-	switch (rqstp->rq_authop->flavour) {
-	case RPC_AUTH_NULL:
-		if (rqstp->rq_proc != CB_NULL)
-			return SVC_DROP;
-		break;
-	case RPC_AUTH_GSS:
-		/* No RPC_AUTH_GSS support yet in NFSv4.1 */
-		 if (svc_is_backchannel(rqstp))
-			return SVC_DROP;
-	}
-	return SVC_OK;
-}
-
-/*
- * Define NFS4 callback program
- */
-static struct svc_version *nfs4_callback_version[] = {
-	[1] = &nfs4_callback_version1,
-	[4] = &nfs4_callback_version4,
-};
-
-static struct svc_stat nfs4_callback_stats;
-
-static struct svc_program nfs4_callback_program = {
-	.pg_prog = NFS4_CALLBACK,			/* RPC service number */
-	.pg_nvers = ARRAY_SIZE(nfs4_callback_version),	/* Number of entries */
-	.pg_vers = nfs4_callback_version,		/* version table */
-	.pg_name = "NFSv4 callback",			/* service name */
-	.pg_class = "nfs",				/* authentication class */
-	.pg_stats = &nfs4_callback_stats,
-	.pg_authenticate = nfs_callback_authenticate,
-};