Blackfin: catch hardware errors earlier during booting

[safe/jmp/linux-2.6] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 2ccee08..1a631ba 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -27,6 +27,7 @@
 #include <linux/security.h>
 #include <linux/ctype.h>
 #include <linux/utsname.h>
+#include <linux/kmemcheck.h>
 #include <linux/smp_lock.h>
 #include <linux/fs.h>
 #include <linux/init.h>
@@ -90,6 +91,9 @@ extern int sysctl_nr_trim_pages;
 #ifdef CONFIG_RCU_TORTURE_TEST
 extern int rcutorture_runnable;
 #endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
+#ifdef CONFIG_BLOCK
+extern int blk_iopoll_enabled;
+#endif
 
 /* Constants used for minimum and  maximum */
 #ifdef CONFIG_DETECT_SOFTLOCKUP
@@ -244,6 +248,14 @@ static int max_wakeup_granularity_ns = NSEC_PER_SEC;       /* 1 second */
 #endif
 
 static struct ctl_table kern_table[] = {
+       {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "sched_child_runs_first",
+               .data           = &sysctl_sched_child_runs_first,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
 #ifdef CONFIG_SCHED_DEBUG
        {
                .ctl_name       = CTL_UNNUMBERED,
@@ -298,14 +310,6 @@ static struct ctl_table kern_table[] = {
        },
        {
                .ctl_name       = CTL_UNNUMBERED,
-               .procname       = "sched_child_runs_first",
-               .data           = &sysctl_sched_child_runs_first,
-               .maxlen         = sizeof(unsigned int),
-               .mode           = 0644,
-               .proc_handler   = &proc_dointvec,
-       },
-       {
-               .ctl_name       = CTL_UNNUMBERED,
                .procname       = "sched_features",
                .data           = &sysctl_sched_features,
                .maxlen         = sizeof(unsigned int),
@@ -330,11 +334,22 @@ static struct ctl_table kern_table[] = {
        },
        {
                .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "sched_time_avg",
+               .data           = &sysctl_sched_time_avg,
+               .maxlen         = sizeof(unsigned int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
+       {
+               .ctl_name       = CTL_UNNUMBERED,
                .procname       = "timer_migration",
                .data           = &sysctl_timer_migration,
                .maxlen         = sizeof(unsigned int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec,
+               .proc_handler   = &proc_dointvec_minmax,
+               .strategy       = &sysctl_intvec,
+               .extra1         = &zero,
+               .extra2         = &one,
        },
 #endif
        {
@@ -743,6 +758,14 @@ static struct ctl_table kern_table[] = {
                .proc_handler   = &proc_dointvec,
        },
        {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "panic_on_io_nmi",
+               .data           = &panic_on_io_nmi,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
+       {
                .ctl_name       = KERN_BOOTLOADER_TYPE,
                .procname       = "bootloader_type",
                .data           = &bootloader_type,
@@ -967,6 +990,26 @@ static struct ctl_table kern_table[] = {
                .proc_handler   = &proc_dointvec,
        },
 #endif
+#ifdef CONFIG_KMEMCHECK
+       {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "kmemcheck",
+               .data           = &kmemcheck_enabled,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
+#endif
+#ifdef CONFIG_BLOCK
+       {
+               .ctl_name       = CTL_UNNUMBERED,
+               .procname       = "blk_iopoll",
+               .data           = &blk_iopoll_enabled,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = &proc_dointvec,
+       },
+#endif
 /*
  * NOTE: do not add new entries to this table unless you have read
  * Documentation/sysctl/ctl_unnumbered.txt
@@ -1283,10 +1326,10 @@ static struct ctl_table vm_table[] = {
        {
                .ctl_name       = CTL_UNNUMBERED,
                .procname       = "mmap_min_addr",
-               .data           = &mmap_min_addr,
-               .maxlen         = sizeof(unsigned long),
+               .data           = &dac_mmap_min_addr,
+               .maxlen         = sizeof(unsigned long),
                .mode           = 0644,
-               .proc_handler   = &proc_doulongvec_minmax,
+               .proc_handler   = &mmap_min_addr_handler,
        },
 #ifdef CONFIG_NUMA
        {
@@ -2271,7 +2314,7 @@ static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table,
                  void *data)
 {
 #define TMPBUFLEN 21
-       int *i, vleft, first=1, neg, val;
+       int *i, vleft, first = 1, neg;
        unsigned long lval;
        size_t left, len;
        
@@ -2324,8 +2367,6 @@ static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table,
                        len = p-buf;
                        if ((len < left) && *p && !isspace(*p))
                                break;
-                       if (neg)
-                               val = -val;
                        s += len;
                        left -= len;