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-rw-r--r--fs/proc/nommu.c71
1 files changed, 32 insertions, 39 deletions
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index 3f87d2632947..b446d7ad0b0d 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -33,33 +33,33 @@
#include "internal.h"
/*
- * display a single VMA to a sequenced file
+ * display a single region to a sequenced file
*/
-int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
+static int nommu_region_show(struct seq_file *m, struct vm_region *region)
{
unsigned long ino = 0;
struct file *file;
dev_t dev = 0;
int flags, len;
- flags = vma->vm_flags;
- file = vma->vm_file;
+ flags = region->vm_flags;
+ file = region->vm_file;
if (file) {
- struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
+ struct inode *inode = region->vm_file->f_path.dentry->d_inode;
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
}
seq_printf(m,
"%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
- vma->vm_start,
- vma->vm_end,
+ region->vm_start,
+ region->vm_end,
flags & VM_READ ? 'r' : '-',
flags & VM_WRITE ? 'w' : '-',
flags & VM_EXEC ? 'x' : '-',
flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
- ((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
+ ((loff_t)region->vm_pgoff) << PAGE_SHIFT,
MAJOR(dev), MINOR(dev), ino, &len);
if (file) {
@@ -75,61 +75,54 @@ int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
}
/*
- * display a list of all the VMAs the kernel knows about
+ * display a list of all the REGIONs the kernel knows about
* - nommu kernals have a single flat list
*/
-static int nommu_vma_list_show(struct seq_file *m, void *v)
+static int nommu_region_list_show(struct seq_file *m, void *_p)
{
- struct vm_area_struct *vma;
+ struct rb_node *p = _p;
- vma = rb_entry((struct rb_node *) v, struct vm_area_struct, vm_rb);
- return nommu_vma_show(m, vma);
+ return nommu_region_show(m, rb_entry(p, struct vm_region, vm_rb));
}
-static void *nommu_vma_list_start(struct seq_file *m, loff_t *_pos)
+static void *nommu_region_list_start(struct seq_file *m, loff_t *_pos)
{
- struct rb_node *_rb;
+ struct rb_node *p;
loff_t pos = *_pos;
- void *next = NULL;
- down_read(&nommu_vma_sem);
+ down_read(&nommu_region_sem);
- for (_rb = rb_first(&nommu_vma_tree); _rb; _rb = rb_next(_rb)) {
- if (pos == 0) {
- next = _rb;
- break;
- }
- pos--;
- }
-
- return next;
+ for (p = rb_first(&nommu_region_tree); p; p = rb_next(p))
+ if (pos-- == 0)
+ return p;
+ return NULL;
}
-static void nommu_vma_list_stop(struct seq_file *m, void *v)
+static void nommu_region_list_stop(struct seq_file *m, void *v)
{
- up_read(&nommu_vma_sem);
+ up_read(&nommu_region_sem);
}
-static void *nommu_vma_list_next(struct seq_file *m, void *v, loff_t *pos)
+static void *nommu_region_list_next(struct seq_file *m, void *v, loff_t *pos)
{
(*pos)++;
return rb_next((struct rb_node *) v);
}
-static const struct seq_operations proc_nommu_vma_list_seqop = {
- .start = nommu_vma_list_start,
- .next = nommu_vma_list_next,
- .stop = nommu_vma_list_stop,
- .show = nommu_vma_list_show
+static struct seq_operations proc_nommu_region_list_seqop = {
+ .start = nommu_region_list_start,
+ .next = nommu_region_list_next,
+ .stop = nommu_region_list_stop,
+ .show = nommu_region_list_show
};
-static int proc_nommu_vma_list_open(struct inode *inode, struct file *file)
+static int proc_nommu_region_list_open(struct inode *inode, struct file *file)
{
- return seq_open(file, &proc_nommu_vma_list_seqop);
+ return seq_open(file, &proc_nommu_region_list_seqop);
}
-static const struct file_operations proc_nommu_vma_list_operations = {
- .open = proc_nommu_vma_list_open,
+static const struct file_operations proc_nommu_region_list_operations = {
+ .open = proc_nommu_region_list_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
@@ -137,7 +130,7 @@ static const struct file_operations proc_nommu_vma_list_operations = {
static int __init proc_nommu_init(void)
{
- proc_create("maps", S_IRUGO, NULL, &proc_nommu_vma_list_operations);
+ proc_create("maps", S_IRUGO, NULL, &proc_nommu_region_list_operations);
return 0;
}