Staging: Pohmelfs: Added ->show_stats() callback.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 49 insertions, 5 deletions

diff --git a/drivers/staging/pohmelfs/inode.c b/drivers/staging/pohmelfs/inode.c
index a12fcc6c72b5..b2eaf9047266 100644
--- a/drivers/staging/pohmelfs/inode.c
+++ b/drivers/staging/pohmelfs/inode.c
@@ -1759,6 +1759,45 @@ err_out_exit:
         return err;
 }
 
+static int pohmelfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
+{
+        struct netfs_state *st;
+        struct pohmelfs_ctl *ctl;
+        struct pohmelfs_sb *psb = POHMELFS_SB(mnt->mnt_sb);
+        struct pohmelfs_config *c;
+
+        mutex_lock(&psb->state_lock);
+
+        seq_printf(m, "\nidx addr(:port) socket_type protocol active priority permissions\n");
+
+        list_for_each_entry(c, &psb->state_list, config_entry) {
+                st = &c->state;
+                ctl = &st->ctl;
+
+                seq_printf(m, "%u ", ctl->idx);
+                if (ctl->addr.sa_family == AF_INET) {
+                        struct sockaddr_in *sin = (struct sockaddr_in *)&st->ctl.addr;
+                        //seq_printf(m, "%pi4:%u", &sin->sin_addr.s_addr, ntohs(sin->sin_port));
+                        seq_printf(m, "%u.%u.%u.%u:%u", NIPQUAD(sin->sin_addr.s_addr), ntohs(sin->sin_port));
+                } else if (ctl->addr.sa_family == AF_INET6) {
+                        struct sockaddr_in6 *sin = (struct sockaddr_in6 *)&st->ctl.addr;
+                        seq_printf(m, "%pi6:%u", &sin->sin6_addr, ntohs(sin->sin6_port));
+                } else {
+                        unsigned int i;
+                        for (i=0; i<ctl->addrlen; ++i)
+                                seq_printf(m, "%02x.", ctl->addr.addr[i]);
+                }
+
+                seq_printf(m, " %u %u %d %u %x\n",
+                                ctl->type, ctl->proto,
+                                st->socket != NULL,
+                                ctl->prio, ctl->perm);
+        }
+        mutex_unlock(&psb->state_lock);
+
+        return 0;
+}
+
 static const struct super_operations pohmelfs_sb_ops = {
         .alloc_inode    = pohmelfs_alloc_inode,
         .destroy_inode  = pohmelfs_destroy_inode,
@@ -1768,6 +1807,7 @@ static const struct super_operations pohmelfs_sb_ops = {
         .remount_fs     = pohmelfs_remount,
         .statfs         = pohmelfs_statfs,
         .show_options   = pohmelfs_show_options,
+        .show_stats     = pohmelfs_show_stats,
 };
 
 /*
diff --git a/drivers/staging/pohmelfs/netfs.h b/drivers/staging/pohmelfs/netfs.h
index 59f81cbf388c..7700e2bf3cc7 100644
--- a/drivers/staging/pohmelfs/netfs.h
+++ b/drivers/staging/pohmelfs/netfs.h
@@ -116,16 +116,20 @@ struct pohmelfs_crypto
         unsigned char           data[0];        /* Algorithm string, key and IV */
 };
 
+#define POHMELFS_IO_PERM_READ           (1<<0)
+#define POHMELFS_IO_PERM_WRITE          (1<<1)
+
 /*
  * Configuration command used to create table of different remote servers.
  */
 struct pohmelfs_ctl
 {
-        unsigned int            idx;            /* Config index */
-        unsigned int            type;           /* Socket type */
-        unsigned int            proto;          /* Socket protocol */
-        unsigned int            addrlen;        /* Size of the address */
-        unsigned short          unused;         /* Align structure by 4 bytes */
+        __u32                   idx;            /* Config index */
+        __u32                   type;           /* Socket type */
+        __u32                   proto;          /* Socket protocol */
+        __u16                   addrlen;        /* Size of the address */
+        __u16                   perm;           /* IO permission */
+        __u16                   prio;           /* IO priority */
         struct saddr            addr;           /* Remote server address */
 };