[merged] mm-use-seq_open_private-instead-of-seq_open.patch removed from -mm tree

[merged] mm-use-seq_open_private-instead-of-seq_open.patch removed from -mm tree

[akpm]

The patch titled
     Subject: mm/vmalloc.c: use seq_open_private() instead of seq_open()
has been removed from the -mm tree.  Its filename was
     mm-use-seq_open_private-instead-of-seq_open.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Rob Jones <rob.jones@codethink.co.uk>
Subject: mm/vmalloc.c: use seq_open_private() instead of seq_open()

Using seq_open_private() removes boilerplate code from vmalloc_open().

The resultant code is shorter and easier to follow.

However, please note that seq_open_private() call kzalloc() rather than
kmalloc() which may affect timing due to the memory initialisation
overhead.

Signed-off-by: Rob Jones <rob.jones@codethink.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmalloc.c |   20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff -puN mm/vmalloc.c~mm-use-seq_open_private-instead-of-seq_open mm/vmalloc.c
--- a/mm/vmalloc.c~mm-use-seq_open_private-instead-of-seq_open
+++ a/mm/vmalloc.c
@@ -2646,21 +2646,11 @@ static const struct seq_operations vmall
 
 static int vmalloc_open(struct inode *inode, struct file *file)
 {
-	unsigned int *ptr = NULL;
-	int ret;
-
-	if (IS_ENABLED(CONFIG_NUMA)) {
-		ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
-		if (ptr == NULL)
-			return -ENOMEM;
-	}
-	ret = seq_open(file, &vmalloc_op);
-	if (!ret) {
-		struct seq_file *m = file->private_data;
-		m->private = ptr;
-	} else
-		kfree(ptr);
-	return ret;
+	if (IS_ENABLED(CONFIG_NUMA))
+		return seq_open_private(file, &vmalloc_op,
+					nr_node_ids * sizeof(unsigned int));
+	else
+		return seq_open(file, &vmalloc_op);
 }
 
 static const struct file_operations proc_vmalloc_operations = {
_

Patches currently in -mm which might be from rob.jones@codethink.co.uk are

origin.patch
lib-use-seq_open_private-instead-of-seq_open.patch
kernel-kallsymsc-use-__seq_open_private.patch
ipc-use-__seq_open_private-instead-of-seq_open.patch