Merge master.kernel.org:/home/rmk/linux-2.6-arm

[powerpc.git] / fs / proc / proc_misc.c

diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 1d75d6a..a345355 100644 (file)
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -44,6 +44,7 @@
 #include <linux/jiffies.h>
 #include <linux/sysrq.h>
 #include <linux/vmalloc.h>
+#include <linux/crash_dump.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
@@ -126,6 +127,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
        unsigned long committed;
        unsigned long allowed;
        struct vmalloc_info vmi;
+       long cached;
 
        get_page_state(&ps);
        get_zone_counts(&active, &inactive, &free);
@@ -140,6 +142,10 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
        allowed = ((totalram_pages - hugetlb_total_pages())
                * sysctl_overcommit_ratio / 100) + total_swap_pages;
 
+       cached = get_page_cache_size() - total_swapcache_pages - i.bufferram;
+       if (cached < 0)
+               cached = 0;
+
        get_vmalloc_info(&vmi);
 
        /*
@@ -172,7 +178,7 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
                K(i.totalram),
                K(i.freeram),
                K(i.bufferram),
-               K(get_page_cache_size()-total_swapcache_pages-i.bufferram),
+               K(cached),
                K(total_swapcache_pages),
                K(active),
                K(inactive),
@@ -214,6 +220,19 @@ static struct file_operations fragmentation_file_operations = {
        .release        = seq_release,
 };
 
+extern struct seq_operations zoneinfo_op;
+static int zoneinfo_open(struct inode *inode, struct file *file)
+{
+       return seq_open(file, &zoneinfo_op);
+}
+
+static struct file_operations proc_zoneinfo_file_operations = {
+       .open           = zoneinfo_open,
+       .read           = seq_read,
+       .llseek         = seq_lseek,
+       .release        = seq_release,
+};
+
 static int version_read_proc(char *page, char **start, off_t off,
                                 int count, int *eof, void *data)
 {
@@ -433,7 +452,7 @@ static int devices_read_proc(char *page, char **start, off_t off,
                                 int count, int *eof, void *data)
 {
        int len = get_chrdev_list(page);
-       len += get_blkdev_list(page+len);
+       len += get_blkdev_list(page+len, len);
        return proc_calc_metrics(page, start, off, count, eof, len);
 }
 
@@ -584,6 +603,7 @@ void __init proc_misc_init(void)
        create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
        create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
        create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
+       create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
        create_seq_entry("diskstats", 0, &proc_diskstats_operations);
 #ifdef CONFIG_MODULES
        create_seq_entry("modules", 0, &proc_modules_operations);
@@ -599,6 +619,11 @@ void __init proc_misc_init(void)
                                (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
        }
 #endif
+#ifdef CONFIG_PROC_VMCORE
+       proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
+       if (proc_vmcore)
+               proc_vmcore->proc_fops = &proc_vmcore_operations;
+#endif
 #ifdef CONFIG_MAGIC_SYSRQ
        entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
        if (entry)