Merge branch 'hpfs-patches' (patches from Mikulas Patocka)

Merge hpfs updates from Mikulas Patocka.

Mainly fstrim support, with some minor other cleanups.

These were actually sent during the merge window, but I wanted to wait
for the FSTRIM compat handling cleanup before applying them.  Mikulas
sent that earlier today.

* emailed patches from Mikulas Patocka <mikulas@twibright.com>:
  hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
  hpfs: kstrdup() out of memory handling
  hpfs: Remove unessary cast
  hpfs: add fstrim support

diff --git a/MAINTAINERS b/MAINTAINERS
index 8133cefb6b6e28715197a86aad555c29edbb7aa1..0d70760e8135a8a98b046f422c4983db52e2648c 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2562,19 +2562,31 @@ F:      arch/powerpc/include/uapi/asm/spu*.h
 F:     arch/powerpc/oprofile/*cell*
 F:     arch/powerpc/platforms/cell/
 
-CEPH DISTRIBUTED FILE SYSTEM CLIENT
+CEPH COMMON CODE (LIBCEPH)
+M:     Ilya Dryomov <idryomov@gmail.com>
 M:     "Yan, Zheng" <zyan@redhat.com>
 M:     Sage Weil <sage@redhat.com>
 L:     ceph-devel@vger.kernel.org
 W:     http://ceph.com/
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T:     git git://github.com/ceph/ceph-client.git
 S:     Supported
-F:     Documentation/filesystems/ceph.txt
-F:     fs/ceph/
 F:     net/ceph/
 F:     include/linux/ceph/
 F:     include/linux/crush/
 
+CEPH DISTRIBUTED FILE SYSTEM CLIENT (CEPH)
+M:     "Yan, Zheng" <zyan@redhat.com>
+M:     Sage Weil <sage@redhat.com>
+M:     Ilya Dryomov <idryomov@gmail.com>
+L:     ceph-devel@vger.kernel.org
+W:     http://ceph.com/
+T:     git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T:     git git://github.com/ceph/ceph-client.git
+S:     Supported
+F:     Documentation/filesystems/ceph.txt
+F:     fs/ceph/
+
 CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
 L:     linux-usb@vger.kernel.org
 S:     Orphan
@@ -8366,10 +8378,12 @@ RADOS BLOCK DEVICE (RBD)
 M:     Ilya Dryomov <idryomov@gmail.com>
 M:     Sage Weil <sage@redhat.com>
 M:     Alex Elder <elder@kernel.org>
-M:     ceph-devel@vger.kernel.org
+L:     ceph-devel@vger.kernel.org
 W:     http://ceph.com/
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T:     git git://github.com/ceph/ceph-client.git
 S:     Supported
+F:     Documentation/ABI/testing/sysfs-bus-rbd
 F:     drivers/block/rbd.c
 F:     drivers/block/rbd_types.h
 

diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index e15499422fdcc7686942ce88389d686d9078cd79..37753278987ac654a5e00797e6d6b81e4b2353c0 100644 (file)
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -8,6 +8,7 @@
 #include <linux/radix-tree.h>
 #include <linux/uio.h>
 #include <linux/workqueue.h>
+#include <net/net_namespace.h>
 
 #include <linux/ceph/types.h>
 #include <linux/ceph/buffer.h>
@@ -56,6 +57,7 @@ struct ceph_messenger {
        struct ceph_entity_addr my_enc_addr;
 
        atomic_t stopping;
+       possible_net_t net;
        bool nocrc;
        bool tcp_nodelay;
 
@@ -267,6 +269,7 @@ extern void ceph_messenger_init(struct ceph_messenger *msgr,
                        u64 required_features,
                        bool nocrc,
                        bool tcp_nodelay);
+extern void ceph_messenger_fini(struct ceph_messenger *msgr);
 
 extern void ceph_con_init(struct ceph_connection *con, void *private,
                        const struct ceph_connection_operations *ops,

diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index cb7db320dd276aa0107d8e484270e3e8fb61dd6a..f30329f726418bdc2e82bb5aced4c3634e215850 100644 (file)
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -9,6 +9,7 @@
 #include <keys/ceph-type.h>
 #include <linux/module.h>
 #include <linux/mount.h>
+#include <linux/nsproxy.h>
 #include <linux/parser.h>
 #include <linux/sched.h>
 #include <linux/seq_file.h>
@@ -16,8 +17,6 @@
 #include <linux/statfs.h>
 #include <linux/string.h>
 #include <linux/vmalloc.h>
-#include <linux/nsproxy.h>
-#include <net/net_namespace.h>
 
 
 #include <linux/ceph/ceph_features.h>
@@ -131,6 +130,13 @@ int ceph_compare_options(struct ceph_options *new_opt,
        int i;
        int ret;
 
+       /*
+        * Don't bother comparing options if network namespaces don't
+        * match.
+        */
+       if (!net_eq(current->nsproxy->net_ns, read_pnet(&client->msgr.net)))
+               return -1;
+
        ret = memcmp(opt1, opt2, ofs);
        if (ret)
                return ret;
@@ -335,9 +341,6 @@ ceph_parse_options(char *options, const char *dev_name,
        int err = -ENOMEM;
        substring_t argstr[MAX_OPT_ARGS];
 
-       if (current->nsproxy->net_ns != &init_net)
-               return ERR_PTR(-EINVAL);
-
        opt = kzalloc(sizeof(*opt), GFP_KERNEL);
        if (!opt)
                return ERR_PTR(-ENOMEM);
@@ -608,6 +611,7 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private,
 fail_monc:
        ceph_monc_stop(&client->monc);
 fail:
+       ceph_messenger_fini(&client->msgr);
        kfree(client);
        return ERR_PTR(err);
 }
@@ -621,8 +625,8 @@ void ceph_destroy_client(struct ceph_client *client)
 
        /* unmount */
        ceph_osdc_stop(&client->osdc);
-
        ceph_monc_stop(&client->monc);
+       ceph_messenger_fini(&client->msgr);
 
        ceph_debugfs_client_cleanup(client);
 

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 1679f47280e2678202238e667c1b617c7665d5fa..e3be1d22a2477dd2d9e271a4594d70ebdb1148e7 100644 (file)
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -6,6 +6,7 @@
 #include <linux/inet.h>
 #include <linux/kthread.h>
 #include <linux/net.h>
+#include <linux/nsproxy.h>
 #include <linux/slab.h>
 #include <linux/socket.h>
 #include <linux/string.h>
@@ -479,7 +480,7 @@ static int ceph_tcp_connect(struct ceph_connection *con)
        int ret;
 
        BUG_ON(con->sock);
-       ret = sock_create_kern(&init_net, con->peer_addr.in_addr.ss_family,
+       ret = sock_create_kern(read_pnet(&con->msgr->net), paddr->ss_family,
                               SOCK_STREAM, IPPROTO_TCP, &sock);
        if (ret)
                return ret;
@@ -1731,17 +1732,17 @@ static int verify_hello(struct ceph_connection *con)
 
 static bool addr_is_blank(struct sockaddr_storage *ss)
 {
+       struct in_addr *addr = &((struct sockaddr_in *)ss)->sin_addr;
+       struct in6_addr *addr6 = &((struct sockaddr_in6 *)ss)->sin6_addr;
+
        switch (ss->ss_family) {
        case AF_INET:
-               return ((struct sockaddr_in *)ss)->sin_addr.s_addr == 0;
+               return addr->s_addr == htonl(INADDR_ANY);
        case AF_INET6:
-               return
-                    ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[0] == 0 &&
-                    ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[1] == 0 &&
-                    ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[2] == 0 &&
-                    ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[3] == 0;
+               return ipv6_addr_any(addr6);
+       default:
+               return true;
        }
-       return false;
 }
 
 static int addr_port(struct sockaddr_storage *ss)
@@ -2944,11 +2945,18 @@ void ceph_messenger_init(struct ceph_messenger *msgr,
        msgr->tcp_nodelay = tcp_nodelay;
 
        atomic_set(&msgr->stopping, 0);
+       write_pnet(&msgr->net, get_net(current->nsproxy->net_ns));
 
        dout("%s %p\n", __func__, msgr);
 }
 EXPORT_SYMBOL(ceph_messenger_init);
 
+void ceph_messenger_fini(struct ceph_messenger *msgr)
+{
+       put_net(read_pnet(&msgr->net));
+}
+EXPORT_SYMBOL(ceph_messenger_fini);
+
 static void clear_standby(struct ceph_connection *con)
 {
        /* come back from STANDBY? */