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authorAl Viro <viro@zeniv.linux.org.uk>2012-06-09 01:16:59 -0400
committerZiyan <jaraidaniel@gmail.com>2016-04-03 14:55:50 +0200
commit7c733a6e7f1caa59c25830eac1d00913a5c3064a (patch)
treee2bd03d96999b55a159de003b7e031602f288400 /fs
parent9e2fa431613b6e8100fc4c517dbf66f535e097eb (diff)
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get rid of magic in proc_namespace.c
don't rely on proc_mounts->m being the first field; container_of() is there for purpose. No need to bother with ->private, while we are at it - the same container_of will do nicely. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> (cherry picked from commit 6ce6e24e72233073c8ead9419fc5040d44803dae)
Diffstat (limited to 'fs')
-rw-r--r--fs/namespace.c6
-rw-r--r--fs/proc/base.c5
2 files changed, 5 insertions, 6 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index 0fd3f8a..f334285 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -900,7 +900,7 @@ EXPORT_SYMBOL(replace_mount_options);
/* iterator */
static void *m_start(struct seq_file *m, loff_t *pos)
{
- struct proc_mounts *p = m->private;
+ struct proc_mounts *p = proc_mounts(m);
down_read(&namespace_sem);
return seq_list_start(&p->ns->list, *pos);
@@ -908,7 +908,7 @@ static void *m_start(struct seq_file *m, loff_t *pos)
static void *m_next(struct seq_file *m, void *v, loff_t *pos)
{
- struct proc_mounts *p = m->private;
+ struct proc_mounts *p = proc_mounts(m);
return seq_list_next(v, &p->ns->list, pos);
}
@@ -1022,7 +1022,7 @@ const struct seq_operations mounts_op = {
static int show_mountinfo(struct seq_file *m, void *v)
{
- struct proc_mounts *p = m->private;
+ struct proc_mounts *p = proc_mounts(m);
struct vfsmount *mnt = list_entry(v, struct vfsmount, mnt_list);
struct super_block *sb = mnt->mnt_sb;
struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 49a048d..c72b0a1 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -624,7 +624,6 @@ static int mounts_open_common(struct inode *inode, struct file *file,
if (ret)
goto err_free;
- p->m.private = p;
p->ns = ns;
p->root = root;
p->event = ns->event;
@@ -643,7 +642,7 @@ static int mounts_open_common(struct inode *inode, struct file *file,
static int mounts_release(struct inode *inode, struct file *file)
{
- struct proc_mounts *p = file->private_data;
+ struct proc_mounts *p = proc_mounts(file->private_data);
path_put(&p->root);
put_mnt_ns(p->ns);
return seq_release(inode, file);
@@ -651,7 +650,7 @@ static int mounts_release(struct inode *inode, struct file *file)
static unsigned mounts_poll(struct file *file, poll_table *wait)
{
- struct proc_mounts *p = file->private_data;
+ struct proc_mounts *p = proc_mounts(file->private_data);
unsigned res = POLLIN | POLLRDNORM;
poll_wait(file, &p->ns->poll, wait);