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procfs: switch /proc/self away from proc_dir_entry

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Just have it pinned in dcache all along and let procfs ->kill_sb()
drop it before kill_anon_super().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-03-29 19:27:05 -04:00
commit 021ada7dff
6 changed files with 56 additions and 12 deletions
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include/linux/pid_namespace.h
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@ -28,6 +28,7 @@ struct pid_namespace {
struct pid_namespace *parent;
#ifdef CONFIG_PROC_FS
struct vfsmount *proc_mnt;
struct dentry *proc_self;
#endif
#ifdef CONFIG_BSD_PROCESS_ACCT
struct bsd_acct_struct *bacct;