#include <linux/highuid.h>
#include <linux/writeback.h>
#include <linux/ratelimit.h>
+#include <linux/compaction.h>
#include <linux/hugetlb.h>
#include <linux/initrd.h>
#include <linux/key.h>
#include <linux/slow-work.h>
#include <linux/perf_event.h>
#include <linux/kprobes.h>
+#include <linux/pipe_fs_i.h>
#include <asm/uaccess.h>
#include <asm/processor.h>
void __user *buffer, size_t *lenp, loff_t *ppos);
#endif
+#ifdef CONFIG_MAGIC_SYSRQ
+static int __sysrq_enabled; /* Note: sysrq code ises it's own private copy */
+
+static int sysrq_sysctl_handler(ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos)
+{
+ int error;
+
+ error = proc_dointvec(table, write, buffer, lenp, ppos);
+ if (error)
+ return error;
+
+ if (write)
+ sysrq_toggle_support(__sysrq_enabled);
+
+ return 0;
+}
+
+#endif
+
static struct ctl_table root_table[];
static struct ctl_table_root sysctl_table_root;
static struct ctl_table_header root_table_header = {
static int max_sched_shares_ratelimit = NSEC_PER_SEC; /* 1 second */
#endif
+#ifdef CONFIG_COMPACTION
+static int min_extfrag_threshold;
+static int max_extfrag_threshold = 1000;
+#endif
+
static struct ctl_table kern_table[] = {
{
.procname = "sched_child_runs_first",
.data = &__sysrq_enabled,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = sysrq_sysctl_handler,
},
#endif
#ifdef CONFIG_PROC_SYSCTL
#endif
{
.procname = "userprocess_debug",
- .data = &sysctl_userprocess_debug,
+ .data = &show_unhandled_signals,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec,
.mode = 0644,
.proc_handler = drop_caches_sysctl_handler,
},
+#ifdef CONFIG_COMPACTION
+ {
+ .procname = "compact_memory",
+ .data = &sysctl_compact_memory,
+ .maxlen = sizeof(int),
+ .mode = 0200,
+ .proc_handler = sysctl_compaction_handler,
+ },
+ {
+ .procname = "extfrag_threshold",
+ .data = &sysctl_extfrag_threshold,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = sysctl_extfrag_handler,
+ .extra1 = &min_extfrag_threshold,
+ .extra2 = &max_extfrag_threshold,
+ },
+
+#endif /* CONFIG_COMPACTION */
{
.procname = "min_free_kbytes",
.data = &min_free_kbytes,
.child = binfmt_misc_table,
},
#endif
+ {
+ .procname = "pipe-max-pages",
+ .data = &pipe_max_pages,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .extra1 = &two,
+ },
/*
* NOTE: do not add new entries to this table unless you have read
* Documentation/sysctl/ctl_unnumbered.txt
};
static struct ctl_table debug_table[] = {
-#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
+#if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || \
+ defined(CONFIG_S390)
{
.procname = "exception-trace",
.data = &show_unhandled_signals,
#define TMPBUFLEN 22
/**
- * proc_get_long - reads an ASCII formated integer from a user buffer
+ * proc_get_long - reads an ASCII formatted integer from a user buffer
*
- * @buf - a kernel buffer
- * @size - size of the kernel buffer
- * @val - this is where the number will be stored
- * @neg - set to %TRUE if number is negative
- * @perm_tr - a vector which contains the allowed trailers
- * @perm_tr_len - size of the perm_tr vector
- * @tr - pointer to store the trailer character
+ * @buf: a kernel buffer
+ * @size: size of the kernel buffer
+ * @val: this is where the number will be stored
+ * @neg: set to %TRUE if number is negative
+ * @perm_tr: a vector which contains the allowed trailers
+ * @perm_tr_len: size of the perm_tr vector
+ * @tr: pointer to store the trailer character
*
- * In case of success 0 is returned and buf and size are updated with
- * the amount of bytes read. If tr is non NULL and a trailing
- * character exist (size is non zero after returning from this
- * function) tr is updated with the trailing character.
+ * In case of success %0 is returned and @buf and @size are updated with
+ * the amount of bytes read. If @tr is non-NULL and a trailing
+ * character exists (size is non-zero after returning from this
+ * function), @tr is updated with the trailing character.
*/
static int proc_get_long(char **buf, size_t *size,
unsigned long *val, bool *neg,
}
/**
- * proc_put_long - coverts an integer to a decimal ASCII formated string
+ * proc_put_long - converts an integer to a decimal ASCII formatted string
*
- * @buf - the user buffer
- * @size - the size of the user buffer
- * @val - the integer to be converted
- * @neg - sign of the number, %TRUE for negative
+ * @buf: the user buffer
+ * @size: the size of the user buffer
+ * @val: the integer to be converted
+ * @neg: sign of the number, %TRUE for negative
*
- * In case of success 0 is returned and buf and size are updated with
- * the amount of bytes read.
+ * In case of success %0 is returned and @buf and @size are updated with
+ * the amount of bytes written.
*/
static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
bool neg)
if (write) {
left -= proc_skip_spaces(&kbuf);
+ if (!left)
+ break;
err = proc_get_long(&kbuf, &left, &lval, &neg,
proc_wspace_sep,
sizeof(proc_wspace_sep), NULL);
if (!write && !first && left && !err)
err = proc_put_char(&buffer, &left, '\n');
- if (write && !err)
+ if (write && !err && left)
left -= proc_skip_spaces(&kbuf);
free:
if (write) {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff