[S390] appldata: remove unused binary sysctls.

Remove binary sysctls that never worked due to missing strategy functions.

Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/appldata/appldata.h b/arch/s390/appldata/appldata.h
index 4069b81..db3ae85 100644 (file)
--- a/arch/s390/appldata/appldata.h
+++ b/arch/s390/appldata/appldata.h
@@ -45,7 +45,6 @@ struct appldata_ops {
        int    active;                          /* monitoring status */
 
        /* fill in from here */
-       unsigned int ctl_nr;                    /* sysctl ID */
        char name[APPLDATA_PROC_NAME_LENGTH];   /* name of /proc fs node */
        unsigned char record_nr;                /* Record Nr. for Product ID */
        void (*callback)(void *data);           /* callback function */

diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index ac61cf4..655d525 100644 (file)
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -53,29 +53,26 @@ static int appldata_interval_handler(ctl_table *ctl, int write,
 static struct ctl_table_header *appldata_sysctl_header;
 static struct ctl_table appldata_table[] = {
        {
-               .ctl_name       = CTL_APPLDATA_TIMER,
                .procname       = "timer",
                .mode           = S_IRUGO | S_IWUSR,
                .proc_handler   = &appldata_timer_handler,
        },
        {
-               .ctl_name       = CTL_APPLDATA_INTERVAL,
                .procname       = "interval",
                .mode           = S_IRUGO | S_IWUSR,
                .proc_handler   = &appldata_interval_handler,
        },
-       { .ctl_name = 0 }
+       { },
 };
 
 static struct ctl_table appldata_dir_table[] = {
        {
-               .ctl_name       = CTL_APPLDATA,
                .procname       = appldata_proc_name,
                .maxlen         = 0,
                .mode           = S_IRUGO | S_IXUGO,
                .child          = appldata_table,
        },
-       { .ctl_name = 0 }
+       { },
 };
 
 /*
@@ -441,75 +438,38 @@ out:
  */
 int appldata_register_ops(struct appldata_ops *ops)
 {
-       struct list_head *lh;
-       struct appldata_ops *tmp_ops;
-       int i;
-
-       i = 0;
+       if ((ops->size > APPLDATA_MAX_REC_SIZE) || (ops->size < 0))
+               return -EINVAL;
 
-       if ((ops->size > APPLDATA_MAX_REC_SIZE) ||
-               (ops->size < 0)){
-               P_ERROR("Invalid size of %s record = %i, maximum = %i!\n",
-                       ops->name, ops->size, APPLDATA_MAX_REC_SIZE);
-               return -ENOMEM;
-       }
-       if ((ops->ctl_nr == CTL_APPLDATA) ||
-           (ops->ctl_nr == CTL_APPLDATA_TIMER) ||
-           (ops->ctl_nr == CTL_APPLDATA_INTERVAL)) {
-               P_ERROR("ctl_nr %i already in use!\n", ops->ctl_nr);
-               return -EBUSY;
-       }
-       ops->ctl_table = kzalloc(4*sizeof(struct ctl_table), GFP_KERNEL);
-       if (ops->ctl_table == NULL) {
-               P_ERROR("Not enough memory for %s ctl_table!\n", ops->name);
+       ops->ctl_table = kzalloc(4 * sizeof(struct ctl_table), GFP_KERNEL);
+       if (!ops->ctl_table)
                return -ENOMEM;
-       }
 
        spin_lock(&appldata_ops_lock);
-       list_for_each(lh, &appldata_ops_list) {
-               tmp_ops = list_entry(lh, struct appldata_ops, list);
-               P_DEBUG("register_ops loop: %i) name = %s, ctl = %i\n",
-                       ++i, tmp_ops->name, tmp_ops->ctl_nr);
-               P_DEBUG("Comparing %s (ctl %i) with %s (ctl %i)\n",
-                       tmp_ops->name, tmp_ops->ctl_nr, ops->name,
-                       ops->ctl_nr);
-               if (strncmp(tmp_ops->name, ops->name,
-                               APPLDATA_PROC_NAME_LENGTH) == 0) {
-                       P_ERROR("Name \"%s\" already registered!\n", ops->name);
-                       kfree(ops->ctl_table);
-                       spin_unlock(&appldata_ops_lock);
-                       return -EBUSY;
-               }
-               if (tmp_ops->ctl_nr == ops->ctl_nr) {
-                       P_ERROR("ctl_nr %i already registered!\n", ops->ctl_nr);
-                       kfree(ops->ctl_table);
-                       spin_unlock(&appldata_ops_lock);
-                       return -EBUSY;
-               }
-       }
        list_add(&ops->list, &appldata_ops_list);
        spin_unlock(&appldata_ops_lock);
 
-       ops->ctl_table[0].ctl_name = CTL_APPLDATA;
        ops->ctl_table[0].procname = appldata_proc_name;
        ops->ctl_table[0].maxlen   = 0;
        ops->ctl_table[0].mode     = S_IRUGO | S_IXUGO;
        ops->ctl_table[0].child    = &ops->ctl_table[2];
 
-       ops->ctl_table[1].ctl_name = 0;
-
-       ops->ctl_table[2].ctl_name = ops->ctl_nr;
        ops->ctl_table[2].procname = ops->name;
        ops->ctl_table[2].mode     = S_IRUGO | S_IWUSR;
        ops->ctl_table[2].proc_handler = appldata_generic_handler;
        ops->ctl_table[2].data = ops;
 
-       ops->ctl_table[3].ctl_name = 0;
-
        ops->sysctl_header = register_sysctl_table(ops->ctl_table);
-
+       if (!ops->sysctl_header)
+               goto out;
        P_INFO("%s-ops registered!\n", ops->name);
        return 0;
+out:
+       spin_lock(&appldata_ops_lock);
+       list_del(&ops->list);
+       spin_unlock(&appldata_ops_lock);
+       kfree(ops->ctl_table);
+       return -ENOMEM;
 }
 
 /*
@@ -519,15 +479,11 @@ int appldata_register_ops(struct appldata_ops *ops)
  */
 void appldata_unregister_ops(struct appldata_ops *ops)
 {
-       void *table;
        spin_lock(&appldata_ops_lock);
        list_del(&ops->list);
-       /* at that point any incoming access will fail */
-       table = ops->ctl_table;
-       ops->ctl_table = NULL;
        spin_unlock(&appldata_ops_lock);
        unregister_sysctl_table(ops->sysctl_header);
-       kfree(table);
+       kfree(ops->ctl_table);
        P_INFO("%s-ops unregistered!\n", ops->name);
 }
 /********************** module-ops management <END> **************************/

diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c
index 697eb30..51181cc 100644 (file)
--- a/arch/s390/appldata/appldata_mem.c
+++ b/arch/s390/appldata/appldata_mem.c
@@ -147,7 +147,6 @@ static void appldata_get_mem_data(void *data)
 
 
 static struct appldata_ops ops = {
-       .ctl_nr    = CTL_APPLDATA_MEM,
        .name      = "mem",
        .record_nr = APPLDATA_RECORD_MEM_ID,
        .size      = sizeof(struct appldata_mem_data),

diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index 6c1815a..4d83443 100644 (file)
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -142,7 +142,6 @@ static void appldata_get_net_sum_data(void *data)
 
 
 static struct appldata_ops ops = {
-       .ctl_nr    = CTL_APPLDATA_NET_SUM,
        .name      = "net_sum",
        .record_nr = APPLDATA_RECORD_NET_SUM_ID,
        .size      = sizeof(struct appldata_net_sum_data),

diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 76a1552..6b3eafe 100644 (file)
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -82,7 +82,6 @@ struct appldata_os_data {
 static struct appldata_os_data *appldata_os_data;
 
 static struct appldata_ops ops = {
-       .ctl_nr    = CTL_APPLDATA_OS,
        .name      = "os",
        .record_nr = APPLDATA_RECORD_OS_ID,
        .owner     = THIS_MODULE,

diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 35b6981..4f5047d 100644 (file)
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -70,7 +70,6 @@ enum
        CTL_ABI=9,              /* Binary emulation */
        CTL_CPU=10,             /* CPU stuff (speed scaling, etc) */
        CTL_ARLAN=254,          /* arlan wireless driver */
-       CTL_APPLDATA=2120,      /* s390 appldata */
        CTL_S390DBF=5677,       /* s390 debug */
        CTL_SUNRPC=7249,        /* sunrpc debug */
        CTL_PM=9899,            /* frv power management */

diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index cde6d78..8f5baac 100644 (file)
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -1216,16 +1216,6 @@ static struct trans_ctl_table trans_arlan_table[] = {
        {}
 };
 
-static struct trans_ctl_table trans_appldata_table[] = {
-       { CTL_APPLDATA_TIMER,           "timer" },
-       { CTL_APPLDATA_INTERVAL,        "interval" },
-       { CTL_APPLDATA_OS,              "os" },
-       { CTL_APPLDATA_NET_SUM,         "net_sum" },
-       { CTL_APPLDATA_MEM,             "mem" },
-       {}
-
-};
-
 static struct trans_ctl_table trans_s390dbf_table[] = {
        { 5678 /* CTL_S390DBF_STOPPABLE */,     "debug_stoppable" },
        { 5679 /* CTL_S390DBF_ACTIVE */,        "debug_active" },
@@ -1270,7 +1260,6 @@ static struct trans_ctl_table trans_root_table[] = {
        { CTL_ABI,      "abi" },
        /* CTL_CPU not used */
        { CTL_ARLAN,    "arlan",        trans_arlan_table },
-       { CTL_APPLDATA, "appldata",     trans_appldata_table },
        { CTL_S390DBF,  "s390dbf",      trans_s390dbf_table },
        { CTL_SUNRPC,   "sunrpc",       trans_sunrpc_table },
        { CTL_PM,       "pm",           trans_pm_table },