More cleanup of the sockets c/r code. Now that we use the methods from
struct proto_ops (checkpoint,restore), we no longer need the prefix
"sock_unix_..." for function names in net/unix/checkpoint.c; Instead
we follow the convention (e.g. in net/unix/afunix.c) "unix_...".

Speaking about code conventions, it is also customary to use 'sock'
for a struct socket, and a 'sk' for struct sock. This patch also makes
changes accordingly where necessary.

Signed-off-by: Oren Laadan <[email protected]>
---
 include/net/af_unix.h |    6 +-
 net/checkpoint.c      |   91 +++++++++++++++-----------------
 net/unix/af_unix.c    |   12 ++--
 net/unix/checkpoint.c |  139 +++++++++++++++++++++++--------------------------
 4 files changed, 119 insertions(+), 129 deletions(-)

diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index e265e9e..eba9142 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -72,9 +72,9 @@ static inline void unix_sysctl_unregister(struct net *net) {}
 #ifdef CONFIG_CHECKPOINT
 struct ckpt_ctx;
 struct ckpt_hdr_socket;
-extern int sock_unix_checkpoint(struct ckpt_ctx *ctx, struct socket *sock);
-extern int sock_unix_restore(struct ckpt_ctx *ctx, struct socket *sock,
-                            struct ckpt_hdr_socket *h);
+extern int unix_checkpoint(struct ckpt_ctx *ctx, struct socket *sock);
+extern int unix_restore(struct ckpt_ctx *ctx, struct socket *sock,
+                       struct ckpt_hdr_socket *h);
 #endif /* CONFIG_CHECKPOINT */
 
 #endif
diff --git a/net/checkpoint.c b/net/checkpoint.c
index 9f92d7a..12ca1e6 100644
--- a/net/checkpoint.c
+++ b/net/checkpoint.c
@@ -1,7 +1,8 @@
 /*
  *  Copyright 2009 IBM Corporation
  *
- *  Author: Dan Smith <[email protected]>
+ *  Authors: Dan Smith <[email protected]>
+ *          Oren Laadan <[email protected]>
  *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU General Public License as
@@ -140,25 +141,23 @@ static int sock_write_buffers(struct ckpt_ctx *ctx, 
struct sk_buff_head *queue)
        return ret;
 }
 
-int ckpt_sock_getnames(struct ckpt_ctx *ctx,
-                      struct socket *socket,
+int ckpt_sock_getnames(struct ckpt_ctx *ctx, struct socket *sock,
                       struct sockaddr *loc, unsigned *loc_len,
                       struct sockaddr *rem, unsigned *rem_len)
 {
        int ret;
 
-       ret = sock_getname(socket, loc, loc_len);
+       ret = sock_getname(sock, loc, loc_len);
        if (ret) {
                ckpt_write_err(ctx, "Unable to getname of local: %i", ret);
                return -EINVAL;
        }
 
-       ret = sock_getpeer(socket, rem, rem_len);
+       ret = sock_getpeer(sock, rem, rem_len);
        if (ret) {
-               if ((socket->sk->sk_type != SOCK_DGRAM) &&
-                   (socket->sk->sk_state == TCP_ESTABLISHED)) {
-                       ckpt_write_err(ctx, "Unable to getname of remote: %i",
-                                      ret);
+               if ((sock->sk->sk_type != SOCK_DGRAM) &&
+                   (sock->sk->sk_state == TCP_ESTABLISHED)) {
+                       ckpt_write_err(ctx, "socket get peer name: %i", ret);
                        return -EINVAL;
                }
                *rem_len = 0;
@@ -186,7 +185,7 @@ static int sock_cptrst_verify(struct ckpt_hdr_socket *h)
        return 0;
 }
 
-static int sock_cptrst_opt(int op, struct socket *socket,
+static int sock_cptrst_opt(int op, struct socket *sock,
                           int optname, char *opt, int len)
 {
        mm_segment_t fs;
@@ -196,32 +195,32 @@ static int sock_cptrst_opt(int op, struct socket *socket,
        set_fs(KERNEL_DS);
 
        if (op == CKPT_CPT)
-               ret = sock_getsockopt(socket, SOL_SOCKET, optname, opt, &len);
+               ret = sock_getsockopt(sock, SOL_SOCKET, optname, opt, &len);
        else
-               ret = sock_setsockopt(socket, SOL_SOCKET, optname, opt, len);
+               ret = sock_setsockopt(sock, SOL_SOCKET, optname, opt, len);
 
        set_fs(fs);
 
        return ret;
 }
 
-#define CKPT_COPY_SOPT(op, sock, name, opt) \
-       sock_cptrst_opt(op, sock->sk_socket, name, (char *)opt, sizeof(*opt))
+#define CKPT_COPY_SOPT(op, sk, name, opt) \
+       sock_cptrst_opt(op, sk->sk_socket, name, (char *)opt, sizeof(*opt))
 
-static int sock_cptrst_bufopts(int op, struct sock *sock,
+static int sock_cptrst_bufopts(int op, struct sock *sk,
                               struct ckpt_hdr_socket *h)
 
 {
-       if (CKPT_COPY_SOPT(op, sock, SO_RCVBUF, &h->sock.rcvbuf))
+       if (CKPT_COPY_SOPT(op, sk, SO_RCVBUF, &h->sock.rcvbuf))
                if ((op == CKPT_RST) &&
-                   CKPT_COPY_SOPT(op, sock, SO_RCVBUFFORCE, &h->sock.rcvbuf)) {
+                   CKPT_COPY_SOPT(op, sk, SO_RCVBUFFORCE, &h->sock.rcvbuf)) {
                        ckpt_debug("Failed to set SO_RCVBUF");
                        return -EINVAL;
                }
 
-       if (CKPT_COPY_SOPT(op, sock, SO_SNDBUF, &h->sock.sndbuf))
+       if (CKPT_COPY_SOPT(op, sk, SO_SNDBUF, &h->sock.sndbuf))
                if ((op == CKPT_RST) &&
-                   CKPT_COPY_SOPT(op, sock, SO_SNDBUFFORCE, &h->sock.sndbuf)) {
+                   CKPT_COPY_SOPT(op, sk, SO_SNDBUFFORCE, &h->sock.sndbuf)) {
                        ckpt_debug("Failed to set SO_SNDBUF");
                        return -EINVAL;
                }
@@ -239,64 +238,62 @@ static int sock_cptrst_bufopts(int op, struct sock *sock,
        return 0;
 }
 
-static int sock_cptrst(struct ckpt_ctx *ctx,
-                      struct sock *sock,
-                      struct ckpt_hdr_socket *h,
-                      int op)
+static int sock_cptrst(struct ckpt_ctx *ctx, struct sock *sk,
+                      struct ckpt_hdr_socket *h, int op)
 {
-       if (sock->sk_socket) {
-               CKPT_COPY(op, h->socket.flags, sock->sk_socket->flags);
-               CKPT_COPY(op, h->socket.state, sock->sk_socket->state);
+       if (sk->sk_socket) {
+               CKPT_COPY(op, h->socket.flags, sk->sk_socket->flags);
+               CKPT_COPY(op, h->socket.state, sk->sk_socket->state);
        }
 
-       CKPT_COPY(op, h->sock_common.bound_dev_if, sock->sk_bound_dev_if);
-       CKPT_COPY(op, h->sock_common.family, sock->sk_family);
+       CKPT_COPY(op, h->sock_common.bound_dev_if, sk->sk_bound_dev_if);
+       CKPT_COPY(op, h->sock_common.family, sk->sk_family);
 
-       CKPT_COPY(op, h->sock.shutdown, sock->sk_shutdown);
-       CKPT_COPY(op, h->sock.userlocks, sock->sk_userlocks);
-       CKPT_COPY(op, h->sock.no_check, sock->sk_no_check);
-       CKPT_COPY(op, h->sock.protocol, sock->sk_protocol);
-       CKPT_COPY(op, h->sock.err, sock->sk_err);
-       CKPT_COPY(op, h->sock.err_soft, sock->sk_err_soft);
-       CKPT_COPY(op, h->sock.type, sock->sk_type);
-       CKPT_COPY(op, h->sock.state, sock->sk_state);
-       CKPT_COPY(op, h->sock.backlog, sock->sk_max_ack_backlog);
+       CKPT_COPY(op, h->sock.shutdown, sk->sk_shutdown);
+       CKPT_COPY(op, h->sock.userlocks, sk->sk_userlocks);
+       CKPT_COPY(op, h->sock.no_check, sk->sk_no_check);
+       CKPT_COPY(op, h->sock.protocol, sk->sk_protocol);
+       CKPT_COPY(op, h->sock.err, sk->sk_err);
+       CKPT_COPY(op, h->sock.err_soft, sk->sk_err_soft);
+       CKPT_COPY(op, h->sock.type, sk->sk_type);
+       CKPT_COPY(op, h->sock.state, sk->sk_state);
+       CKPT_COPY(op, h->sock.backlog, sk->sk_max_ack_backlog);
 
        /* TODO:
         * Break out setting each of the flags to use setsockopt() or
         * perform proper security check
         */
-       CKPT_COPY(op, h->sock.flags, sock->sk_flags);
+       CKPT_COPY(op, h->sock.flags, sk->sk_flags);
 
-       if (sock_cptrst_bufopts(op, sock, h))
+       if (sock_cptrst_bufopts(op, sk, h))
                return -EINVAL;
 
-       if (CKPT_COPY_SOPT(op, sock, SO_REUSEADDR, &h->sock_common.reuse)) {
+       if (CKPT_COPY_SOPT(op, sk, SO_REUSEADDR, &h->sock_common.reuse)) {
                ckpt_debug("Failed to set SO_REUSEADDR");
                return -EINVAL;
        }
 
-       if (CKPT_COPY_SOPT(op, sock, SO_PRIORITY, &h->sock.priority)) {
+       if (CKPT_COPY_SOPT(op, sk, SO_PRIORITY, &h->sock.priority)) {
                ckpt_debug("Failed to set SO_PRIORITY");
                return -EINVAL;
        }
 
-       if (CKPT_COPY_SOPT(op, sock, SO_RCVLOWAT, &h->sock.rcvlowat)) {
+       if (CKPT_COPY_SOPT(op, sk, SO_RCVLOWAT, &h->sock.rcvlowat)) {
                ckpt_debug("Failed to set SO_RCVLOWAT");
                return -EINVAL;
        }
 
-       if (CKPT_COPY_SOPT(op, sock, SO_LINGER, &h->sock.linger)) {
+       if (CKPT_COPY_SOPT(op, sk, SO_LINGER, &h->sock.linger)) {
                ckpt_debug("Failed to set SO_LINGER");
                return -EINVAL;
        }
 
-       if (CKPT_COPY_SOPT(op, sock, SO_SNDTIMEO, &h->sock.sndtimeo)) {
+       if (CKPT_COPY_SOPT(op, sk, SO_SNDTIMEO, &h->sock.sndtimeo)) {
                ckpt_debug("Failed to set SO_SNDTIMEO");
                return -EINVAL;
        }
 
-       if (CKPT_COPY_SOPT(op, sock, SO_RCVTIMEO, &h->sock.rcvtimeo)) {
+       if (CKPT_COPY_SOPT(op, sk, SO_RCVTIMEO, &h->sock.rcvtimeo)) {
                ckpt_debug("Failed to set SO_RCVTIMEO");
                return -EINVAL;
        }
@@ -405,7 +402,7 @@ struct ckpt_hdr_socket_queue 
*ckpt_sock_read_buffer_hdr(struct ckpt_ctx *ctx,
                return h;
 }
 
-static struct file *sock_alloc_attach_fd(struct socket *socket)
+static struct file *sock_alloc_attach_fd(struct socket *sock)
 {
        struct file *file;
        int err;
@@ -414,7 +411,7 @@ static struct file *sock_alloc_attach_fd(struct socket 
*socket)
        if (!file)
                return ERR_PTR(ENOMEM);
 
-       err = sock_attach_fd(socket, file, 0);
+       err = sock_attach_fd(sock, file, 0);
        if (err < 0) {
                put_filp(file);
                file = ERR_PTR(err);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 667397d..da6405d 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -523,8 +523,8 @@ static const struct proto_ops unix_stream_ops = {
        .recvmsg =      unix_stream_recvmsg,
        .mmap =         sock_no_mmap,
        .sendpage =     sock_no_sendpage,
-       .checkpoint =   sock_unix_checkpoint,
-       .restore =      sock_unix_restore,
+       .checkpoint =   unix_checkpoint,
+       .restore =      unix_restore,
 };
 
 static const struct proto_ops unix_dgram_ops = {
@@ -546,8 +546,8 @@ static const struct proto_ops unix_dgram_ops = {
        .recvmsg =      unix_dgram_recvmsg,
        .mmap =         sock_no_mmap,
        .sendpage =     sock_no_sendpage,
-       .checkpoint =   sock_unix_checkpoint,
-       .restore =      sock_unix_restore,
+       .checkpoint =   unix_checkpoint,
+       .restore =      unix_restore,
 };
 
 static const struct proto_ops unix_seqpacket_ops = {
@@ -569,8 +569,8 @@ static const struct proto_ops unix_seqpacket_ops = {
        .recvmsg =      unix_dgram_recvmsg,
        .mmap =         sock_no_mmap,
        .sendpage =     sock_no_sendpage,
-       .checkpoint =   sock_unix_checkpoint,
-       .restore =      sock_unix_restore,
+       .checkpoint =   unix_checkpoint,
+       .restore =      unix_restore,
 };
 
 static struct proto unix_proto = {
diff --git a/net/unix/checkpoint.c b/net/unix/checkpoint.c
index d2431a4..772ab5f 100644
--- a/net/unix/checkpoint.c
+++ b/net/unix/checkpoint.c
@@ -8,17 +8,15 @@
 
 #define UNIX_ADDR_EMPTY(a) (a <= sizeof(short))
 
-static inline int sock_unix_need_cwd(struct sockaddr_un *addr,
-                                    unsigned long len)
+static inline int unix_need_cwd(struct sockaddr_un *addr, unsigned long len)
 {
        return (!UNIX_ADDR_EMPTY(len)) &&
                addr->sun_path[0] &&
                (addr->sun_path[0] != '/');
 }
 
-static int sock_unix_write_cwd(struct ckpt_ctx *ctx,
-                              struct sock *sock,
-                              const char *sockpath)
+static int unix_write_cwd(struct ckpt_ctx *ctx,
+                         struct sock *sk, const char *sockpath)
 {
        struct path path;
        char *buf;
@@ -31,8 +29,8 @@ static int sock_unix_write_cwd(struct ckpt_ctx *ctx,
        if (!buf)
                return -ENOMEM;
 
-       path.dentry = unix_sk(sock)->dentry;
-       path.mnt = unix_sk(sock)->mnt;
+       path.dentry = unix_sk(sk)->dentry;
+       path.mnt = unix_sk(sk)->mnt;
 
        fqpath = ckpt_fill_fname(&path, &ctx->fs_mnt, buf, &len);
        if (IS_ERR(fqpath)) {
@@ -55,16 +53,16 @@ static int sock_unix_write_cwd(struct ckpt_ctx *ctx,
        return ret;
 }
 
-int sock_unix_checkpoint(struct ckpt_ctx *ctx, struct socket *socket)
+int unix_checkpoint(struct ckpt_ctx *ctx, struct socket *sock)
 {
-       struct unix_sock *sk = unix_sk(socket->sk);
+       struct unix_sock *sk = unix_sk(sock->sk);
        struct unix_sock *pr = unix_sk(sk->peer);
        struct ckpt_hdr_socket_unix *un;
        int new;
        int ret = -ENOMEM;
 
-       if ((socket->sk->sk_state == TCP_LISTEN) &&
-           !skb_queue_empty(&socket->sk->sk_receive_queue)) {
+       if ((sock->sk->sk_state == TCP_LISTEN) &&
+           !skb_queue_empty(&sock->sk->sk_receive_queue)) {
                ckpt_write_err(ctx, "listening socket has unaccepted peers");
                return -EBUSY;
        }
@@ -73,7 +71,7 @@ int sock_unix_checkpoint(struct ckpt_ctx *ctx, struct socket 
*socket)
        if (!un)
                return -EINVAL;
 
-       ret = ckpt_sock_getnames(ctx, socket,
+       ret = ckpt_sock_getnames(ctx, sock,
                                 (struct sockaddr *)&un->laddr, &un->laddr_len,
                                 (struct sockaddr *)&un->raddr, &un->raddr_len);
        if (ret)
@@ -100,15 +98,15 @@ int sock_unix_checkpoint(struct ckpt_ctx *ctx, struct 
socket *socket)
        if (ret < 0)
                goto out;
 
-       if (sock_unix_need_cwd(&un->laddr, un->laddr_len))
-               ret = sock_unix_write_cwd(ctx, socket->sk, un->laddr.sun_path);
+       if (unix_need_cwd(&un->laddr, un->laddr_len))
+               ret = unix_write_cwd(ctx, sock->sk, un->laddr.sun_path);
  out:
        ckpt_hdr_put(ctx, un);
 
        return ret;
 }
 
-static int sock_read_buffer_sendmsg(struct ckpt_ctx *ctx, struct sock *sock)
+static int sock_read_buffer_sendmsg(struct ckpt_ctx *ctx, struct sock *sk)
 {
        struct msghdr msg;
        struct kvec kvec;
@@ -138,7 +136,7 @@ static int sock_read_buffer_sendmsg(struct ckpt_ctx *ctx, 
struct sock *sock)
        if (ret < 0)
                goto out;
 
-       ret = kernel_sendmsg(sock->sk_socket, &msg, &kvec, 1, len);
+       ret = kernel_sendmsg(sk->sk_socket, &msg, &kvec, 1, len);
        ckpt_debug("kernel_sendmsg(%i): %i\n", len, ret);
        if ((ret > 0) && (ret != len))
                ret = -ENOMEM;
@@ -148,9 +146,8 @@ static int sock_read_buffer_sendmsg(struct ckpt_ctx *ctx, 
struct sock *sock)
        return ret;
 }
 
-static int sock_unix_read_buffers(struct ckpt_ctx *ctx,
-                                 struct sock *sock,
-                                 uint32_t *bufsize)
+static int unix_read_buffers(struct ckpt_ctx *ctx,
+                            struct sock *sk, uint32_t *bufsize)
 {
        uint8_t sock_shutdown;
        struct ckpt_hdr_socket_queue *h;
@@ -162,11 +159,11 @@ static int sock_unix_read_buffers(struct ckpt_ctx *ctx,
                return PTR_ERR(h);
 
        /* If peer is shutdown, unshutdown it for this process */
-       sock_shutdown = sock->sk_shutdown;
-       sock->sk_shutdown &= ~SHUTDOWN_MASK;
+       sock_shutdown = sk->sk_shutdown;
+       sk->sk_shutdown &= ~SHUTDOWN_MASK;
 
        for (i = 0; i < h->skb_count; i++) {
-               ret = sock_read_buffer_sendmsg(ctx, sock);
+               ret = sock_read_buffer_sendmsg(ctx, sk);
                ckpt_debug("read_buffer_sendmsg(%i): %i\n", i, ret);
                if (ret < 0)
                        break;
@@ -181,14 +178,14 @@ static int sock_unix_read_buffers(struct ckpt_ctx *ctx,
                ret = 0;
        }
 
-       sock->sk_shutdown = sock_shutdown;
+       sk->sk_shutdown = sock_shutdown;
        ckpt_hdr_put(ctx, h);
 
        return ret;
 }
 
-static struct unix_address *sock_unix_makeaddr(struct sockaddr_un *sun_addr,
-                                              unsigned len)
+static struct unix_address *unix_makeaddr(struct sockaddr_un *sun_addr,
+                                         unsigned len)
 {
        struct unix_address *addr;
 
@@ -206,10 +203,9 @@ static struct unix_address *sock_unix_makeaddr(struct 
sockaddr_un *sun_addr,
        return addr;
 }
 
-static int sock_unix_join(struct ckpt_ctx *ctx,
-                         struct sock *a,
-                         struct sock *b,
-                         struct ckpt_hdr_socket_unix *un)
+static int unix_join(struct ckpt_ctx *ctx,
+                    struct sock *a, struct sock *b,
+                    struct ckpt_hdr_socket_unix *un)
 {
        struct unix_address *addr = NULL;
 
@@ -235,9 +231,9 @@ static int sock_unix_join(struct ckpt_ctx *ctx,
        b->sk_peercred.gid = a->sk_peercred.gid;
 
        if (!UNIX_ADDR_EMPTY(un->raddr_len))
-               addr = sock_unix_makeaddr(&un->raddr, un->raddr_len);
+               addr = unix_makeaddr(&un->raddr, un->raddr_len);
        else if (!UNIX_ADDR_EMPTY(un->laddr_len))
-               addr = sock_unix_makeaddr(&un->laddr, un->laddr_len);
+               addr = unix_makeaddr(&un->laddr, un->laddr_len);
 
        if (IS_ERR(addr))
                return PTR_ERR(addr);
@@ -249,10 +245,10 @@ static int sock_unix_join(struct ckpt_ctx *ctx,
        return 0;
 }
 
-static int sock_unix_restore_connected(struct ckpt_ctx *ctx,
-                                      struct ckpt_hdr_socket *h,
-                                      struct ckpt_hdr_socket_unix *un,
-                                      struct socket *socket)
+static int unix_restore_connected(struct ckpt_ctx *ctx,
+                                 struct ckpt_hdr_socket *h,
+                                 struct ckpt_hdr_socket_unix *un,
+                                 struct socket *sock)
 {
        struct sock *this = ckpt_obj_fetch(ctx, un->this, CKPT_OBJ_SOCK);
        struct sock *peer = ckpt_obj_fetch(ctx, un->peer, CKPT_OBJ_SOCK);
@@ -265,19 +261,19 @@ static int sock_unix_restore_connected(struct ckpt_ctx 
*ctx,
 
                old->sk = NULL;
                sock_release(old);
-               sock_graft(this, socket);
+               sock_graft(this, sock);
 
        } else if ((PTR_ERR(this) == -EINVAL) && (PTR_ERR(peer) == -EINVAL)) {
                /* We're first */
-               int family = socket->sk->sk_family;
-               int type = socket->sk->sk_type;
+               int family = sock->sk->sk_family;
+               int type = sock->sk->sk_type;
 
                ret = sock_create(family, type, 0, &tmp);
                ckpt_debug("sock_create: %i\n", ret);
                if (ret)
                        goto out;
 
-               this = socket->sk;
+               this = sock->sk;
                peer = tmp->sk;
 
                ret = ckpt_obj_insert(ctx, this, un->this, CKPT_OBJ_SOCK);
@@ -288,8 +284,8 @@ static int sock_unix_restore_connected(struct ckpt_ctx *ctx,
                if (ret < 0)
                        goto out;
 
-               ret = sock_unix_join(ctx, this, peer, un);
-               ckpt_debug("sock_unix_join: %i\n", ret);
+               ret = unix_join(ctx, this, peer, un);
+               ckpt_debug("unix_join: %i\n", ret);
                if (ret)
                        goto out;
 
@@ -312,13 +308,13 @@ static int sock_unix_restore_connected(struct ckpt_ctx 
*ctx,
         *       where sendto() has been used on some of the buffers
         */
 
-       ret = sock_unix_read_buffers(ctx, peer, &peer->sk_sndbuf);
-       ckpt_debug("sock_unix_read_buffers: %i\n", ret);
+       ret = unix_read_buffers(ctx, peer, &peer->sk_sndbuf);
+       ckpt_debug("unix_read_buffers: %i\n", ret);
        if (ret)
                goto out;
 
        /* Read peer's buffers and expect 0 */
-       ret = sock_unix_read_buffers(ctx, peer, NULL);
+       ret = unix_read_buffers(ctx, peer, NULL);
  out:
        if (tmp && ret)
                sock_release(tmp);
@@ -326,7 +322,7 @@ static int sock_unix_restore_connected(struct ckpt_ctx *ctx,
        return ret;
 }
 
-static int sock_unix_unlink(const char *name)
+static int unix_unlink(const char *name)
 {
        struct path spath;
        struct path ppath;
@@ -364,10 +360,10 @@ static int sock_unix_unlink(const char *name)
 /* Call bind() for socket, optionally changing (temporarily) to @path first
  * if non-NULL
  */
-static int sock_unix_chdir_and_bind(struct socket *socket,
-                                   const char *path,
-                                   struct sockaddr *addr,
-                                   unsigned long addrlen)
+static int unix_chdir_and_bind(struct socket *sock,
+                              const char *path,
+                              struct sockaddr *addr,
+                              unsigned long addrlen)
 {
        struct sockaddr_un *un = (struct sockaddr_un *)addr;
        int ret;
@@ -392,10 +388,10 @@ static int sock_unix_chdir_and_bind(struct socket *socket,
                write_unlock(&current->fs->lock);
        }
 
-       ret = sock_unix_unlink(un->sun_path);
+       ret = unix_unlink(un->sun_path);
        ckpt_debug("unlink(%s): %i\n", un->sun_path, ret);
        if ((ret == 0) || (ret == -ENOENT))
-               ret = sock_bind(socket, addr, addrlen);
+               ret = sock_bind(sock, addr, addrlen);
 
        if (path) {
                write_lock(&current->fs->lock);
@@ -409,42 +405,40 @@ static int sock_unix_chdir_and_bind(struct socket *socket,
        return ret;
 }
 
-static int sock_unix_fakebind(struct socket *socket,
-                             struct sockaddr_un *addr,
-                             unsigned long len)
+static int unix_fakebind(struct socket *sock,
+                        struct sockaddr_un *addr, unsigned long len)
 {
        struct unix_address *uaddr;
 
-       uaddr = sock_unix_makeaddr(addr, len);
+       uaddr = unix_makeaddr(addr, len);
        if (IS_ERR(uaddr))
                return PTR_ERR(uaddr);
 
-       unix_sk(socket->sk)->addr = uaddr;
+       unix_sk(sock->sk)->addr = uaddr;
 
        return 0;
 }
 
-static int sock_unix_bind(struct ckpt_hdr_socket *h,
-                         struct ckpt_hdr_socket_unix *un,
-                         struct socket *socket,
-                         const char *path)
+static int unix_restore_bind(struct ckpt_hdr_socket *h,
+                            struct ckpt_hdr_socket_unix *un,
+                            struct socket *sock,
+                            const char *path)
 {
        struct sockaddr *addr = (struct sockaddr *)&un->laddr;
        unsigned long len = un->laddr_len;
 
        if (!un->laddr.sun_path[0])
-               return sock_bind(socket, addr, len);
+               return sock_bind(sock, addr, len);
        else if (!(un->flags & CKPT_UNIX_LINKED))
-               return sock_unix_fakebind(socket, &un->laddr, len);
+               return unix_fakebind(sock, &un->laddr, len);
        else
-               return sock_unix_chdir_and_bind(socket, path, addr, len);
+               return unix_chdir_and_bind(sock, path, addr, len);
 }
 
 /* Some easy pre-flight checks before we get underway */
-static int sock_unix_precheck(struct socket *socket,
-                             struct ckpt_hdr_socket *h)
+static int unix_precheck(struct socket *sock, struct ckpt_hdr_socket *h)
 {
-       struct net *net = sock_net(socket->sk);
+       struct net *net = sock_net(sock->sk);
 
        if ((h->socket.state == SS_CONNECTING) ||
            (h->socket.state == SS_DISCONNECTING) ||
@@ -472,7 +466,7 @@ static int sock_unix_precheck(struct socket *socket,
        return 0;
 }
 
-int sock_unix_restore(struct ckpt_ctx *ctx, struct socket *socket,
+int unix_restore(struct ckpt_ctx *ctx, struct socket *sock,
                      struct ckpt_hdr_socket *h)
 
 {
@@ -480,7 +474,7 @@ int sock_unix_restore(struct ckpt_ctx *ctx, struct socket 
*socket,
        int ret = -EINVAL;
        char *cwd = NULL;
 
-       ret = sock_unix_precheck(socket, h);
+       ret = unix_precheck(sock, h);
        if (ret)
                return ret;
 
@@ -491,7 +485,7 @@ int sock_unix_restore(struct ckpt_ctx *ctx, struct socket 
*socket,
        if (un->peer < 0)
                goto out;
 
-       if (sock_unix_need_cwd(&un->laddr, un->laddr_len)) {
+       if (unix_need_cwd(&un->laddr, un->laddr_len)) {
                cwd = ckpt_read_string(ctx, PATH_MAX);
                if (IS_ERR(cwd)) {
                        ret = PTR_ERR(cwd);
@@ -501,15 +495,15 @@ int sock_unix_restore(struct ckpt_ctx *ctx, struct socket 
*socket,
 
        if ((h->sock.state != TCP_ESTABLISHED) &&
            !UNIX_ADDR_EMPTY(un->laddr_len)) {
-               ret = sock_unix_bind(h, un, socket, cwd);
+               ret = unix_restore_bind(h, un, sock, cwd);
                if (ret)
                        goto out;
        }
 
        if ((h->sock.state == TCP_ESTABLISHED) || (h->sock.state == TCP_CLOSE))
-               ret = sock_unix_restore_connected(ctx, h, un, socket);
+               ret = unix_restore_connected(ctx, h, un, sock);
        else if (h->sock.state == TCP_LISTEN)
-               ret = socket->ops->listen(socket, h->sock.backlog);
+               ret = sock->ops->listen(sock, h->sock.backlog);
        else
                ckpt_debug("unsupported UNIX socket state %i\n", h->sock.state);
  out:
@@ -517,4 +511,3 @@ int sock_unix_restore(struct ckpt_ctx *ctx, struct socket 
*socket,
        kfree(cwd);
        return ret;
 }
-
-- 
1.6.0.4

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