[RFC 18/18] proc: present VM_LOCKED memory in /proc/self/maps
From: Topi Miettinen
Date: Mon Jun 13 2016 - 15:48:53 EST
Add a flag to /proc/self/maps to show that the memory area is locked.
Signed-off-by: Topi Miettinen <toiwoton@xxxxxxxxx>
---
fs/proc/task_mmu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 4648c7f..8229509 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -313,13 +313,14 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
end -= PAGE_SIZE;
seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
- seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
+ seq_printf(m, "%08lx-%08lx %c%c%c%c%c %08llx %02x:%02x %lu ",
start,
end,
flags & VM_READ ? 'r' : '-',
flags & VM_WRITE ? 'w' : '-',
flags & VM_EXEC ? 'x' : '-',
flags & VM_MAYSHARE ? 's' : 'p',
+ flags & VM_LOCKED ? 'l' : '-',
pgoff,
MAJOR(dev), MINOR(dev), ino);
--
2.8.1