The patch titled
netns: assign PDE->data before gluing entry into /proc tree
has been added to the -mm tree. Its filename is
netns-assign-pde-data-before-gluing-entry-into-proc-tree.patch
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------------------------------------------------------
Subject: netns: assign PDE->data before gluing entry into /proc tree
From: "Denis V. Lunev" <den@xxxxxxxxxx>
In this unfortunate case, proc_mkdir_mode wrapper can't be used anymore and
this is no way to reuse proc_create_data due to nlinks assignment. So, copy
the code from proc_mkdir and assign PDE->data at the appropriate moment.
Signed-off-by: Denis V. Lunev <den@xxxxxxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/generic.c | 17 +++++++++++++++++
fs/proc/proc_net.c | 11 -----------
2 files changed, 17 insertions(+), 11 deletions(-)
diff -puN fs/proc/generic.c~netns-assign-pde-data-before-gluing-entry-into-proc-tree fs/proc/generic.c
--- a/fs/proc/generic.c~netns-assign-pde-data-before-gluing-entry-into-proc-tree
+++ a/fs/proc/generic.c
@@ -641,6 +641,23 @@ struct proc_dir_entry *proc_mkdir_mode(c
return ent;
}
+struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
+ struct proc_dir_entry *parent)
+{
+ struct proc_dir_entry *ent;
+
+ ent = __proc_create(&parent, name, S_IFDIR | S_IRUGO | S_IXUGO, 2);
+ if (ent) {
+ ent->data = net;
+ if (proc_register(parent, ent) < 0) {
+ kfree(ent);
+ ent = NULL;
+ }
+ }
+ return ent;
+}
+EXPORT_SYMBOL_GPL(proc_net_mkdir);
+
struct proc_dir_entry *proc_mkdir(const char *name,
struct proc_dir_entry *parent)
{
diff -puN fs/proc/proc_net.c~netns-assign-pde-data-before-gluing-entry-into-proc-tree fs/proc/proc_net.c
--- a/fs/proc/proc_net.c~netns-assign-pde-data-before-gluing-entry-into-proc-tree
+++ a/fs/proc/proc_net.c
@@ -159,17 +159,6 @@ struct net *get_proc_net(const struct in
}
EXPORT_SYMBOL_GPL(get_proc_net);
-struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
- struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *pde;
- pde = proc_mkdir_mode(name, S_IRUGO | S_IXUGO, parent);
- if (pde != NULL)
- pde->data = net;
- return pde;
-}
-EXPORT_SYMBOL_GPL(proc_net_mkdir);
-
static __net_init int proc_net_ns_init(struct net *net)
{
struct proc_dir_entry *netd, *net_statd;
_
Patches currently in -mm which might be from den@xxxxxxxxxx are
origin.patch
proc-introduce-proc_create_data-to-setup-de-data.patch
nfsd-use-proc_create-to-setup-de-proc_fops.patch
nfs-use-proc_create-to-setup-de-proc_fops.patch
afs-use-non-racy-method-for-proc-entries-creation.patch
ext4-use-non-racy-method-for-proc-entries-creation.patch
reiserfs-use-non-racy-method-for-proc-entries-creation.patch
jbd2-use-non-racy-method-for-proc-entries-creation.patch
sysvipc-use-non-racy-method-for-proc-entries-creation.patch
mm-use-non-racy-method-for-proc-swaps-creation.patch
sound-use-non-racy-method-for-proc-driver-snd-page-alloc-creation.patch
zorro-use-non-racy-method-for-proc-entries-creation.patch
samples-use-non-racy-method-for-proc-marker-example-creation.patch
scsi-use-non-racy-method-for-proc-entries-creation.patch
usb-use-non-racy-method-for-proc-entries-creation.patch
s390-use-non-racy-method-for-proc-entries-creation.patch
arm-use-non-racy-method-for-proc-davinci_clocks-creation.patch
avr32-proc-use-non-racy-method-for-proc-tlb-creation.patch
cris-use-non-racy-method-for-proc-system_profile-creation.patch
ia64-use-non-racy-method-for-proc-entries-creation.patch
parisc-use-non-racy-method-for-proc-pcxl_dma-creation.patch
powerpc-use-non-racy-method-for-proc-entries-creation.patch
acpi-use-non-racy-method-for-proc-entries-creation.patch
netdev-use-non-racy-method-for-proc-entries-creation.patch
isdn-use-non-racy-method-for-proc-entries-creation.patch
kernel-use-non-racy-method-for-proc-entries-creation.patch
parisc-use-non-racy-method-for-proc-entries-creation.patch
drivers-use-non-racy-method-for-proc-entries-creation.patch
drivers-use-non-racy-method-for-proc-entries-creation-2.patch
sysctl-merge-equal-proc_sys_read-and-proc_sys_write.patch
sysctl-clean-from-unneeded-extern-and-forward-declarations.patch
sysctl-add-the-permissions-callback-on-the-ctl_table_root.patch
drivers-use-non-racy-method-for-proc-entries-creation-2-rio.patch
sunrpc-assign-pde-data-before-gluing-pde-into-proc-tree.patch
netfilter-assign-pde-data-before-gluing-pde-into-proc-tree.patch
net-assign-pde-data-before-gluing-pde-into-proc-tree.patch
ipv6-assign-pde-data-before-gluing-pde-into-proc-tree.patch
atm-assign-pde-data-before-gluing-pde-into-proc-tree.patch
vlan-assign-pde-data-before-gluing-pde-into-proc-tree.patch
cciss-assign-pde-data-before-gluing-pde-into-proc-tree.patch
powerpc-assign-pde-data-before-gluing-pde-into-proc-tree.patch
ipv4-assign-pde-data-before-gluing-pde-into-proc-tree.patch
netfilter-assign-pde-fops-before-gluing-pde-into-proc-tree.patch
netfilter-assign-pde-data-before-gluing-pde-into-proc-tree-2.patch
netns-assign-pde-data-before-gluing-entry-into-proc-tree.patch
proc-use-non-racy-method-for-proc-page_owner-creation-page_owner.patch
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