The patch titled
Subject: proc: use ppos instead of m->version
has been added to the -mm tree. Its filename is
proc-use-ppos-instead-of-m-version.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/proc-use-ppos-instead-of-m-version.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/proc-use-ppos-instead-of-m-version.patch
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The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: proc: use ppos instead of m->version
The ppos is a private cursor, just like m->version. Use the canonical
cursor, not a special one.
Link: http://lkml.kernel.org/r/20200317193201.9924-3-adobriyan@xxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/fs/proc/task_mmu.c~proc-use-ppos-instead-of-m-version
+++ a/fs/proc/task_mmu.c
@@ -134,7 +134,7 @@ m_next_vma(struct proc_maps_private *pri
static void *m_start(struct seq_file *m, loff_t *ppos)
{
struct proc_maps_private *priv = m->private;
- unsigned long last_addr = m->version;
+ unsigned long last_addr = *ppos;
struct mm_struct *mm;
struct vm_area_struct *vma;
@@ -170,14 +170,13 @@ static void *m_start(struct seq_file *m,
return priv->tail_vma;
}
-static void *m_next(struct seq_file *m, void *v, loff_t *pos)
+static void *m_next(struct seq_file *m, void *v, loff_t *ppos)
{
struct proc_maps_private *priv = m->private;
struct vm_area_struct *next;
- (*pos)++;
next = m_next_vma(priv, v);
- m->version = next ? next->vm_start : -1UL;
+ *ppos = next ? next->vm_start : -1UL;
return next;
}
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-improve-dump_page-for-compound-pages.patch
mm-add-pagemaph-to-the-fine-documentation.patch
proc-inline-vma_stop-into-m_stop.patch
proc-remove-m_cache_vma.patch
proc-use-ppos-instead-of-m-version.patch
seq_file-remove-m-version.patch
proc-inline-m_next_vma-into-m_next.patch
