---

yaml --- r: 327223 b: refs/heads/master c: adb37c4 h: refs/heads/master i: 327221: e1dbef7 327219: 16e7841 327215: 409c1a7 v: v3
git-mirror · Aug 15, 2012 · 86785af · 86785af
1 parent a5a9959
commit 86785af
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Showing 3 changed files with 19 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fc5795c8a94c2d0b221dffae9ebb22686b3dafd8
+refs/heads/master: adb37c4c67f807f16beb222028fb3ce9a354dc2b
diff --git a/trunk/fs/seq_file.c b/trunk/fs/seq_file.c
@@ -9,6 +9,7 @@
 #include <linux/export.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
+#include <linux/cred.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -56,6 +57,9 @@ int seq_open(struct file *file, const struct seq_operations *op)
 	memset(p, 0, sizeof(*p));
 	mutex_init(&p->lock);
 	p->op = op;
+#ifdef CONFIG_USER_NS
+	p->user_ns = file->f_cred->user_ns;
+#endif
 
 	/*
 	 * Wrappers around seq_open(e.g. swaps_open) need to be

diff --git a/trunk/include/linux/seq_file.h b/trunk/include/linux/seq_file.h
@@ -13,6 +13,7 @@ struct file;
 struct path;
 struct inode;
 struct dentry;
+struct user_namespace;
 
 struct seq_file {
 	char *buf;
@@ -25,6 +26,9 @@ struct seq_file {
 	struct mutex lock;
 	const struct seq_operations *op;
 	int poll_event;
+#ifdef CONFIG_USER_NS
+	struct user_namespace *user_ns;
+#endif
 	void *private;
 };
 
@@ -128,6 +132,16 @@ int seq_put_decimal_ull(struct seq_file *m, char delimiter,
 int seq_put_decimal_ll(struct seq_file *m, char delimiter,
 			long long num);
 
+static inline struct user_namespace *seq_user_ns(struct seq_file *seq)
+{
+#ifdef CONFIG_USER_NS
+	return seq->user_ns;
+#else
+	extern struct user_namespace init_user_ns;
+	return &init_user_ns;
+#endif
+}
+
 #define SEQ_START_TOKEN ((void *)1)
 /*
  * Helpers for iteration over list_head-s in seq_files