Update Linux to v5.10.157
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.157.tar.xz
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I7b30d9e98d8c465d6b44de8e7433b4a40b3289ba
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 05d2176..86969de 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -45,6 +45,7 @@
struct mqueue_fs_context {
struct ipc_namespace *ipc_ns;
+ bool newns; /* Set if newly created ipc namespace */
};
#define MQUEUE_MAGIC 0x19800202
@@ -424,6 +425,14 @@
{
struct mqueue_fs_context *ctx = fc->fs_private;
+ /*
+ * With a newly created ipc namespace, we don't need to do a search
+ * for an ipc namespace match, but we still need to set s_fs_info.
+ */
+ if (ctx->newns) {
+ fc->s_fs_info = ctx->ipc_ns;
+ return get_tree_nodev(fc, mqueue_fill_super);
+ }
return get_tree_keyed(fc, mqueue_fill_super, ctx->ipc_ns);
}
@@ -451,6 +460,10 @@
return 0;
}
+/*
+ * mq_init_ns() is currently the only caller of mq_create_mount().
+ * So the ns parameter is always a newly created ipc namespace.
+ */
static struct vfsmount *mq_create_mount(struct ipc_namespace *ns)
{
struct mqueue_fs_context *ctx;
@@ -462,6 +475,7 @@
return ERR_CAST(fc);
ctx = fc->fs_private;
+ ctx->newns = true;
put_ipc_ns(ctx->ipc_ns);
ctx->ipc_ns = get_ipc_ns(ns);
put_user_ns(fc->user_ns);