net/mlx4_core: Enforce irq affinity changes immediatly

[deliverable/linux.git] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 5c14b547882ef1dabfcd9cd80f5903e173ef4ec4..e36ae4b15726041337e74b26b0a09dcec6ff73b8 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -141,6 +141,11 @@ static int min_percpu_pagelist_fract = 8;
 static int ngroups_max = NGROUPS_MAX;
 static const int cap_last_cap = CAP_LAST_CAP;
 
+/*this is needed for proc_doulongvec_minmax of sysctl_hung_task_timeout_secs */
+#ifdef CONFIG_DETECT_HUNG_TASK
+static unsigned long hung_task_timeout_max = (LONG_MAX/HZ);
+#endif
+
 #ifdef CONFIG_INOTIFY_USER
 #include <linux/inotify.h>
 #endif
@@ -985,6 +990,7 @@ static struct ctl_table kern_table[] = {
                .maxlen         = sizeof(unsigned long),
                .mode           = 0644,
                .proc_handler   = proc_dohung_task_timeout_secs,
+               .extra2         = &hung_task_timeout_max,
        },
        {
                .procname       = "hung_task_warnings",
@@ -2495,11 +2501,11 @@ int proc_do_large_bitmap(struct ctl_table *table, int write,
        bool first = 1;
        size_t left = *lenp;
        unsigned long bitmap_len = table->maxlen;
-       unsigned long *bitmap = (unsigned long *) table->data;
+       unsigned long *bitmap = *(unsigned long **) table->data;
        unsigned long *tmp_bitmap = NULL;
        char tr_a[] = { '-', ',', '\n' }, tr_b[] = { ',', '\n', 0 }, c;
 
-       if (!bitmap_len || !left || (*ppos && !write)) {
+       if (!bitmap || !bitmap_len || !left || (*ppos && !write)) {
                *lenp = 0;
                return 0;
        }