From ca469f35a8e9ef12571a4b80ac6d7fdc0260fb44 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 3 Apr 2013 19:57:00 -0400 Subject: deal with races between remove_proc_entry() and proc_reg_release() * serialize the call of ->release() on per-pdeo mutex * don't remove pdeo from per-pde list until we are through with it Signed-off-by: Al Viro --- fs/proc/internal.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/proc/internal.h') diff --git a/fs/proc/internal.h b/fs/proc/internal.h index c43d536f93b9..e2fa9345a9a8 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -153,6 +153,8 @@ int proc_readdir_de(struct proc_dir_entry *de, struct file *filp, void *dirent, struct pde_opener { struct file *file; struct list_head lh; + int count; /* number of threads in close_pdeo() */ + struct mutex mutex; }; ssize_t __proc_file_read(struct file *, char __user *, size_t, loff_t *); -- cgit