[PATCH RFC 08/41] mqueue: use fc_init_pseudo()

[Christian Brauner <brauner@xxxxxxxxxx>]

Initialize mqueue as a pseudo filesystem instead of raising
SB_I_NOEXEC and SB_I_NODEV by hand. This adds SB_I_PSEUDO.

Signed-off-by: Christian Brauner (Amutable) <brauner@xxxxxxxxxx>
---
 ipc/mqueue.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 322c3dd98c44..8bbe32d0881f 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -18,6 +18,7 @@
 #include <linux/file.h>
 #include <linux/mount.h>
 #include <linux/fs_context.h>
+#include <linux/pseudo_fs.h>
 #include <linux/namei.h>
 #include <linux/sysctl.h>
 #include <linux/poll.h>
@@ -405,7 +406,6 @@ static int mqueue_fill_super(struct super_block *sb, struct 
fs_context *fc)
        struct inode *inode;
        struct ipc_namespace *ns = sb->s_fs_info;
 
-       sb->s_iflags |= SB_I_NOEXEC | SB_I_NODEV;
        sb->s_blocksize = PAGE_SIZE;
        sb->s_blocksize_bits = PAGE_SHIFT;
        sb->s_magic = MQUEUE_MAGIC;
@@ -457,6 +457,7 @@ static int mqueue_init_fs_context(struct fs_context *fc)
        put_user_ns(fc->user_ns);
        fc->user_ns = get_user_ns(ctx->ipc_ns->user_ns);
        fc->fs_private = ctx;
+       fc_init_pseudo(fc);
        fc->ops = &mqueue_fs_context_ops;
        return 0;
 }

-- 
2.53.0