#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/pagemap.h>
+#include <linux/interrupt.h>
#include <linux/swap.h>
#include <linux/slab.h>
+#include <linux/genhd.h>
#include <linux/smp.h>
#include <linux/signal.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/crash_dump.h>
#include <linux/pid_namespace.h>
+#include <linux/bootmem.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/io.h>
*/
extern int get_hardware_list(char *);
extern int get_stram_list(char *);
-extern int get_filesystem_list(char *);
extern int get_exec_domain_list(char *);
extern int get_dma_list(char *);
{
int a, b, c;
int len;
+ unsigned long seq;
+
+ do {
+ seq = read_seqbegin(&xtime_lock);
+ a = avenrun[0] + (FIXED_1/200);
+ b = avenrun[1] + (FIXED_1/200);
+ c = avenrun[2] + (FIXED_1/200);
+ } while (read_seqretry(&xtime_lock, seq));
- a = avenrun[0] + (FIXED_1/200);
- b = avenrun[1] + (FIXED_1/200);
- c = avenrun[2] + (FIXED_1/200);
len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
LOAD_INT(a), LOAD_FRAC(a),
LOAD_INT(b), LOAD_FRAC(b),
#undef K
}
-extern struct seq_operations fragmentation_op;
+extern const struct seq_operations fragmentation_op;
static int fragmentation_open(struct inode *inode, struct file *file)
{
(void)inode;
.release = seq_release,
};
-extern struct seq_operations pagetypeinfo_op;
+extern const struct seq_operations pagetypeinfo_op;
static int pagetypeinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &pagetypeinfo_op);
.release = seq_release,
};
-extern struct seq_operations zoneinfo_op;
+extern const struct seq_operations zoneinfo_op;
static int zoneinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &zoneinfo_op);
return proc_calc_metrics(page, start, off, count, eof, len);
}
-extern struct seq_operations cpuinfo_op;
+extern const struct seq_operations cpuinfo_op;
static int cpuinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &cpuinfo_op);
/* Nothing to do */
}
-static struct seq_operations devinfo_ops = {
+static const struct seq_operations devinfo_ops = {
.start = devinfo_start,
.next = devinfo_next,
.stop = devinfo_stop,
.release = seq_release,
};
-extern struct seq_operations vmstat_op;
+extern const struct seq_operations vmstat_op;
static int vmstat_open(struct inode *inode, struct file *file)
{
return seq_open(file, &vmstat_op);
#endif
#ifdef CONFIG_BLOCK
-extern struct seq_operations partitions_op;
static int partitions_open(struct inode *inode, struct file *file)
{
return seq_open(file, &partitions_op);
.release = seq_release,
};
-extern struct seq_operations diskstats_op;
static int diskstats_open(struct inode *inode, struct file *file)
{
return seq_open(file, &diskstats_op);
#endif
#ifdef CONFIG_MODULES
-extern struct seq_operations modules_op;
+extern const struct seq_operations modules_op;
static int modules_open(struct inode *inode, struct file *file)
{
return seq_open(file, &modules_op);
};
#endif
-#ifdef CONFIG_SLAB
+#ifdef CONFIG_SLABINFO
static int slabinfo_open(struct inode *inode, struct file *file)
{
return seq_open(file, &slabinfo_op);
};
#ifdef CONFIG_DEBUG_SLAB_LEAK
-extern struct seq_operations slabstats_op;
+extern const struct seq_operations slabstats_op;
static int slabstats_open(struct inode *inode, struct file *file)
{
unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
}
-extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */
-static struct seq_operations int_seq_ops = {
+static const struct seq_operations int_seq_ops = {
.start = int_seq_start,
.next = int_seq_next,
.stop = int_seq_stop,
};
#endif
+#ifdef CONFIG_PROC_PAGE_MONITOR
+#define KPMSIZE sizeof(u64)
+#define KPMMASK (KPMSIZE - 1)
+/* /proc/kpagecount - an array exposing page counts
+ *
+ * Each entry is a u64 representing the corresponding
+ * physical page count.
+ */
+static ssize_t kpagecount_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ u64 __user *out = (u64 __user *)buf;
+ struct page *ppage;
+ unsigned long src = *ppos;
+ unsigned long pfn;
+ ssize_t ret = 0;
+ u64 pcount;
+
+ pfn = src / KPMSIZE;
+ count = min_t(size_t, count, (max_pfn * KPMSIZE) - src);
+ if (src & KPMMASK || count & KPMMASK)
+ return -EIO;
+
+ while (count > 0) {
+ ppage = NULL;
+ if (pfn_valid(pfn))
+ ppage = pfn_to_page(pfn);
+ pfn++;
+ if (!ppage)
+ pcount = 0;
+ else
+ pcount = atomic_read(&ppage->_count);
+
+ if (put_user(pcount, out++)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ count -= KPMSIZE;
+ }
+
+ *ppos += (char __user *)out - buf;
+ if (!ret)
+ ret = (char __user *)out - buf;
+ return ret;
+}
+
+static struct file_operations proc_kpagecount_operations = {
+ .llseek = mem_lseek,
+ .read = kpagecount_read,
+};
+
+/* /proc/kpageflags - an array exposing page flags
+ *
+ * Each entry is a u64 representing the corresponding
+ * physical page flags.
+ */
+
+/* These macros are used to decouple internal flags from exported ones */
+
+#define KPF_LOCKED 0
+#define KPF_ERROR 1
+#define KPF_REFERENCED 2
+#define KPF_UPTODATE 3
+#define KPF_DIRTY 4
+#define KPF_LRU 5
+#define KPF_ACTIVE 6
+#define KPF_SLAB 7
+#define KPF_WRITEBACK 8
+#define KPF_RECLAIM 9
+#define KPF_BUDDY 10
+
+#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
+
+static ssize_t kpageflags_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ u64 __user *out = (u64 __user *)buf;
+ struct page *ppage;
+ unsigned long src = *ppos;
+ unsigned long pfn;
+ ssize_t ret = 0;
+ u64 kflags, uflags;
+
+ pfn = src / KPMSIZE;
+ count = min_t(unsigned long, count, (max_pfn * KPMSIZE) - src);
+ if (src & KPMMASK || count & KPMMASK)
+ return -EIO;
+
+ while (count > 0) {
+ ppage = NULL;
+ if (pfn_valid(pfn))
+ ppage = pfn_to_page(pfn);
+ pfn++;
+ if (!ppage)
+ kflags = 0;
+ else
+ kflags = ppage->flags;
+
+ uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
+ kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
+ kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
+ kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |
+ kpf_copy_bit(kflags, KPF_DIRTY, PG_dirty) |
+ kpf_copy_bit(kflags, KPF_LRU, PG_lru) |
+ kpf_copy_bit(kflags, KPF_ACTIVE, PG_active) |
+ kpf_copy_bit(kflags, KPF_SLAB, PG_slab) |
+ kpf_copy_bit(kflags, KPF_WRITEBACK, PG_writeback) |
+ kpf_copy_bit(kflags, KPF_RECLAIM, PG_reclaim) |
+ kpf_copy_bit(kflags, KPF_BUDDY, PG_buddy);
+
+ if (put_user(uflags, out++)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ count -= KPMSIZE;
+ }
+
+ *ppos += (char __user *)out - buf;
+ if (!ret)
+ ret = (char __user *)out - buf;
+ return ret;
+}
+
+static struct file_operations proc_kpageflags_operations = {
+ .llseek = mem_lseek,
+ .read = kpageflags_read,
+};
+#endif /* CONFIG_PROC_PAGE_MONITOR */
+
struct proc_dir_entry *proc_root_kcore;
void create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
#endif
create_seq_entry("stat", 0, &proc_stat_operations);
create_seq_entry("interrupts", 0, &proc_interrupts_operations);
-#ifdef CONFIG_SLAB
+#ifdef CONFIG_SLABINFO
create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
#ifdef CONFIG_DEBUG_SLAB_LEAK
create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
(size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
}
#endif
+#ifdef CONFIG_PROC_PAGE_MONITOR
+ create_seq_entry("kpagecount", S_IRUSR, &proc_kpagecount_operations);
+ create_seq_entry("kpageflags", S_IRUSR, &proc_kpageflags_operations);
+#endif
#ifdef CONFIG_PROC_VMCORE
proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
if (proc_vmcore)
git.samba.org / sfrench / cifs-2.6.git / blobdiff