Recently, it's argued that what proc/pid/maps shows is ugly when a 32bit
binary runs on 64bit host.
/proc/pid/maps outputs vma's pgoff member but vma->pgoff is of no use
information is the vma is for ANON. With this patch, /proc/pid/maps shows
just 0 if no file backing store.
[akpm@linux-foundation.org: coding-style fixes]
[kamezawa.hiroyu@jp.fujitsu.com: coding-style fixes]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mike Waychison <mikew@google.com>
Reported-by: Ying Han <yinghan@google.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
struct file *file = vma->vm_file;
int flags = vma->vm_flags;
unsigned long ino = 0;
struct file *file = vma->vm_file;
int flags = vma->vm_flags;
unsigned long ino = 0;
+ unsigned long long pgoff = 0;
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
+ pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
}
seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
}
seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
flags & VM_WRITE ? 'w' : '-',
flags & VM_EXEC ? 'x' : '-',
flags & VM_MAYSHARE ? 's' : 'p',
flags & VM_WRITE ? 'w' : '-',
flags & VM_EXEC ? 'x' : '-',
flags & VM_MAYSHARE ? 's' : 'p',
- ((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
MAJOR(dev), MINOR(dev), ino, &len);
/*
MAJOR(dev), MINOR(dev), ino, &len);
/*
struct file *file;
dev_t dev = 0;
int flags, len;
struct file *file;
dev_t dev = 0;
int flags, len;
+ unsigned long long pgoff = 0;
flags = vma->vm_flags;
file = vma->vm_file;
flags = vma->vm_flags;
file = vma->vm_file;
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
+ pgoff = (loff_t)vma->pg_off << PAGE_SHIFT;
flags & VM_WRITE ? 'w' : '-',
flags & VM_EXEC ? 'x' : '-',
flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
flags & VM_WRITE ? 'w' : '-',
flags & VM_EXEC ? 'x' : '-',
flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
- (unsigned long long) vma->vm_pgoff << PAGE_SHIFT,
MAJOR(dev), MINOR(dev), ino, &len);
if (file) {
MAJOR(dev), MINOR(dev), ino, &len);
if (file) {