refresh (create temporary patch)

diff --git a/meta b/meta
index d200c73baa7601003d4cb6b039cf7cbb8ca27a5c..b3a6b99fe6411d5fd07a02041ff093c812359536 100644 (file)
--- a/meta
+++ b/meta
@@ -1,8 +1,9 @@
 Version: 1
-Previous: 340281e9f56896620d7a091eadef6fab2b013aba
-Head: 467f4d6bebb1a619fcad225b8ea1cf9662a4a97d
+Previous: 5571cf2b5b15472b73775b2d5ffa81086c960d49
+Head: 018fff2b15218aa621bcbd991530d483b86ac3d2
 Applied:
   transpose: 467f4d6bebb1a619fcad225b8ea1cf9662a4a97d
+  refresh-temp: 018fff2b15218aa621bcbd991530d483b86ac3d2
 Unapplied:
   fork: d62b389a7f30187f39e8c6ae709fbdbf8423e7e8
   waitall-buggy: c49c6b56c55385774065f5aa2704078e6ae0ceb8

diff --git a/patches/refresh-temp b/patches/refresh-temp
new file mode 100644 (file)
index 0000000..028119b
--- /dev/null
+++ b/patches/refresh-temp
@@ -0,0 +1,156 @@
+Bottom: 7ec243f3149e9a1ff1d5183f18e30d2458e354d6
+Top:    8ec84e6e24d58093de94f5921ca22d6e4c566290
+Author: Sean Hefty <sean.hefty@intel.com>
+Date:   2012-07-16 14:18:52 -0700
+
+Refresh of transpose
+
+---
+
+diff --git a/src/preload.c b/src/preload.c
+index 2750b30..8b9fbaf 100644
+--- a/src/preload.c
++++ b/src/preload.c
+@@ -92,10 +92,12 @@ static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
+ static int sq_size;
+ static int rq_size;
+ static int sq_inline;
++static int fork_support;
+ 
+ enum fd_type {
+       fd_normal,
+-      fd_rsocket
++      fd_rsocket,
++      fd_fork
+ };
+ 
+ struct fd_info {
+@@ -207,6 +209,10 @@ void getenv_options(void)
+       var = getenv("RS_INLINE");
+       if (var)
+               sq_inline = atoi(var);
++
++      var = getenv("RDMAV_FORK_SAFE");
++      if (var)
++              fork_support = atoi(var);
+ }
+ 
+ static void init_preload(void)
+@@ -301,6 +307,68 @@ err:
+ }
+ 
+ /*
++ * Convert between an rsocket and a normal socket.  The new socket should have the
++ * same settings and bindings as the current socket.  We currently only handle
++ * setting a few of the more common values.
++ */
++static int
++transpose_socket(int index, int *fd, enum fd_type new_type,
++      int (*socket_new)(int domain, int type, int protocol),
++      int (*shutdown_old)(int socket, int how),
++      int (*close_old)(int socket),
++      int (*getsockname_old)(int socket, struct sockaddr *addr,
++                             socklen_t *addrlen),
++      int (*getsockopt_old)(int socket, int level, int optname,
++                            void *optval, socklen_t *optlen),
++      int (*setsockopt_new)(int socket, int level, int optname,
++                            const void *optval, socklen_t optlen),
++      int (*fcntl_old)(int socket, int cmd, ... /* arg */),
++      int (*fcntl_new)(int socket, int cmd, ... /* arg */))
++{
++      socklen_t len = 0;
++      int new_fd, param, ret;
++
++      ret = getsockname_old(*fd, NULL, &len);
++      if (ret)
++              return ret;
++
++      param = (len == sizeof(struct sockaddr_in6)) ? PF_INET6 : PF_INET;
++      new_fd = socket_new(param, SOCK_STREAM, 0);
++      if (new_fd < 0)
++              return new_fd;
++
++      ret = fcntl_old(*fd, F_GETFL);
++      if (ret > 0)
++              ret = fcntl_new(new_fd, F_SETFL, ret);
++      if (ret)
++              goto err;
++
++      len = sizeof param;
++      ret = getsockopt_old(*fd, SOL_SOCKET, SO_REUSEADDR, &param, &len);
++      if (param && !ret)
++              ret = setsockopt_new(new_fd, SOL_SOCKET, SO_REUSEADDR, &param, len);
++      if (ret)
++              goto err;
++
++      len = sizeof param;
++      ret = getsockopt_old(*fd, IPPROTO_TCP, TCP_NODELAY, &param, &len);
++      if (param && !ret)
++              ret = setsockopt_new(new_fd, IPPROTO_TCP, TCP_NODELAY, &param, len);
++      if (ret)
++              goto err;
++
++      shutdown_old(*fd, SHUT_RDWR);
++      close_old(*fd);
++      fd_store(socket, new_fd, new_type);
++      *fd = new_fd;
++      return 0;
++
++err:
++      real_close(new_fd);
++      return ret;
++}
++
++/*
+  * Use defaults on failure.
+  */
+ void set_rsocket_options(int rsocket)
+@@ -332,8 +400,16 @@ int socket(int domain, int type, int protocol)
+       ret = rsocket(domain, type, protocol);
+       recursive = 0;
+       if (ret >= 0) {
+-              fd_store(index, ret, fd_rsocket);
+-              set_rsocket_options(ret);
++              if (fork_support) {
++                      rclose(ret);
++                      ret = real_socket(domain, type, protocol);
++                      if (ret < 0)
++                              return ret;
++                      fd_store(index, ret, fd_fork);
++              } else {
++                      fd_store(index, ret, fd_rsocket);
++                      set_rsocket_options(ret);
++              }
+               return index;
+       }
+       fd_close(index, &ret);
+@@ -388,6 +464,29 @@ int accept(int socket, struct sockaddr *addr, socklen_t *addrlen)
+       }
+ }
+ 
++static int connect_fork(int socket, const struct sockaddr *addr, socklen_t addrlen)
++{
++      uint32_t msg;
++      int rs, fd, ret;
++
++      fd = fd_getd(socket);
++      ret = real_connect(fd, addr, addrlen);
++      if (!ret)
++              return ret;
++
++      ret = real_read(fd, &msg, sizeof msg);
++      if (ret != sizeof msg)
++              return ret;
++
++      rs = rsocket(domain, type, protocol);
++
++      real_shutdown(fd, SHUT_RDWR);
++      real_close(fd);
++
++      fd_store(socket, fd, fd_rsocket);
++      return connect(socket, addr, addrlen);
++}
++
+ int connect(int socket, const struct sockaddr *addr, socklen_t addrlen)
+ {
+       struct sockaddr_in *sin;