diff options
Diffstat (limited to 'fs/proc/nommu.c')
| -rw-r--r-- | fs/proc/nommu.c | 71 | 
1 files changed, 32 insertions, 39 deletions
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c index 3f87d263294..b446d7ad0b0 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;  }  |