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-rw-r--r--userns-Rename-id_map_mutex-to-userns_state_mutex.patch80
1 files changed, 0 insertions, 80 deletions
diff --git a/userns-Rename-id_map_mutex-to-userns_state_mutex.patch b/userns-Rename-id_map_mutex-to-userns_state_mutex.patch
deleted file mode 100644
index ce6288ae..00000000
--- a/userns-Rename-id_map_mutex-to-userns_state_mutex.patch
+++ /dev/null
@@ -1,80 +0,0 @@
-From: "Eric W. Biederman" <ebiederm@xmission.com>
-Date: Tue, 9 Dec 2014 14:03:14 -0600
-Subject: [PATCH] userns: Rename id_map_mutex to userns_state_mutex
-
-Generalize id_map_mutex so it can be used for more state of a user namespace.
-
-Cc: stable@vger.kernel.org
-Reviewed-by: Andy Lutomirski <luto@amacapital.net>
-Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
----
- kernel/user_namespace.c | 14 ++++++--------
- 1 file changed, 6 insertions(+), 8 deletions(-)
-
-diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
-index 1e34de2fbd60..44a555ac6104 100644
---- a/kernel/user_namespace.c
-+++ b/kernel/user_namespace.c
-@@ -24,6 +24,7 @@
- #include <linux/fs_struct.h>
-
- static struct kmem_cache *user_ns_cachep __read_mostly;
-+static DEFINE_MUTEX(userns_state_mutex);
-
- static bool new_idmap_permitted(const struct file *file,
- struct user_namespace *ns, int cap_setid,
-@@ -583,9 +584,6 @@ static bool mappings_overlap(struct uid_gid_map *new_map,
- return false;
- }
-
--
--static DEFINE_MUTEX(id_map_mutex);
--
- static ssize_t map_write(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos,
- int cap_setid,
-@@ -602,7 +600,7 @@ static ssize_t map_write(struct file *file, const char __user *buf,
- ssize_t ret = -EINVAL;
-
- /*
-- * The id_map_mutex serializes all writes to any given map.
-+ * The userns_state_mutex serializes all writes to any given map.
- *
- * Any map is only ever written once.
- *
-@@ -620,7 +618,7 @@ static ssize_t map_write(struct file *file, const char __user *buf,
- * order and smp_rmb() is guaranteed that we don't have crazy
- * architectures returning stale data.
- */
-- mutex_lock(&id_map_mutex);
-+ mutex_lock(&userns_state_mutex);
-
- ret = -EPERM;
- /* Only allow one successful write to the map */
-@@ -750,7 +748,7 @@ static ssize_t map_write(struct file *file, const char __user *buf,
- *ppos = count;
- ret = count;
- out:
-- mutex_unlock(&id_map_mutex);
-+ mutex_unlock(&userns_state_mutex);
- if (page)
- free_page(page);
- return ret;
-@@ -845,12 +843,12 @@ bool userns_may_setgroups(const struct user_namespace *ns)
- {
- bool allowed;
-
-- mutex_lock(&id_map_mutex);
-+ mutex_lock(&userns_state_mutex);
- /* It is not safe to use setgroups until a gid mapping in
- * the user namespace has been established.
- */
- allowed = ns->gid_map.nr_extents != 0;
-- mutex_unlock(&id_map_mutex);
-+ mutex_unlock(&userns_state_mutex);
-
- return allowed;
- }
---
-2.1.0
-