From 1eae9639aac0f8de4d284f567ec722a822b52513 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Tue, 1 Nov 2016 14:27:38 -0300 Subject: Linux-libre 4.8.6-gnu --- fs/overlayfs/dir.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'fs/overlayfs/dir.c') diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c index 1560fdc09..74e696426 100644 --- a/fs/overlayfs/dir.c +++ b/fs/overlayfs/dir.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "overlayfs.h" void ovl_cleanup(struct inode *wdir, struct dentry *wdentry) @@ -37,8 +38,10 @@ struct dentry *ovl_lookup_temp(struct dentry *workdir, struct dentry *dentry) { struct dentry *temp; char name[20]; + static atomic_t temp_id = ATOMIC_INIT(0); - snprintf(name, sizeof(name), "#%lx", (unsigned long) dentry); + /* counter is allowed to wrap, since temp dentries are ephemeral */ + snprintf(name, sizeof(name), "#%x", atomic_inc_return(&temp_id)); temp = lookup_one_len(name, workdir, strlen(name)); if (!IS_ERR(temp) && temp->d_inode) { -- cgit v1.2.3