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authorStephen Wilson <wilsons@start.ca>2011-03-13 20:49:15 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-23 21:36:54 +0100
commit31db58b3ab432f72ea76be58b12e6ffaf627d5db (patch)
treec88b742e1f2c52045d5abc6d35d7492ebdf64541 /fs/proc/task_mmu.c
parentx86: mark associated mm when running a task in 32 bit compatibility mode (diff)
downloadlinux-31db58b3ab432f72ea76be58b12e6ffaf627d5db.tar.xz
linux-31db58b3ab432f72ea76be58b12e6ffaf627d5db.zip
mm: arch: make get_gate_vma take an mm_struct instead of a task_struct
Morally, the presence of a gate vma is more an attribute of a particular mm than a particular task. Moreover, dropping the dependency on task_struct will help make both existing and future operations on mm's more flexible and convenient. Signed-off-by: Stephen Wilson <wilsons@start.ca> Reviewed-by: Michel Lespinasse <walken@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/proc/task_mmu.c')
-rw-r--r--fs/proc/task_mmu.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 8fed0f88fbf7..e73314afc535 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -126,7 +126,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
return mm;
down_read(&mm->mmap_sem);
- tail_vma = get_gate_vma(priv->task);
+ tail_vma = get_gate_vma(priv->task->mm);
priv->tail_vma = tail_vma;
/* Start with last addr hint */
@@ -277,7 +277,8 @@ static int show_map(struct seq_file *m, void *v)
show_map_vma(m, vma);
if (m->count < m->size) /* vma is copied successfully */
- m->version = (vma != get_gate_vma(task))? vma->vm_start: 0;
+ m->version = (vma != get_gate_vma(task->mm))
+ ? vma->vm_start : 0;
return 0;
}
@@ -436,7 +437,8 @@ static int show_smap(struct seq_file *m, void *v)
(unsigned long)(mss.pss >> (10 + PSS_SHIFT)) : 0);
if (m->count < m->size) /* vma is copied successfully */
- m->version = (vma != get_gate_vma(task)) ? vma->vm_start : 0;
+ m->version = (vma != get_gate_vma(task->mm))
+ ? vma->vm_start : 0;
return 0;
}