mounting tmpfs in user namespace does no harm to the host.
so enable tmpfs support for the user namespace.
Signed-off-by: Gao feng <gaofeng@xxxxxxxxxxxxxx>
---
mm/shmem.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index d4e184e..ef97dc3 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2801,6 +2801,7 @@ static struct file_system_type shmem_fs_type = {
.name = "tmpfs",
.mount = shmem_mount,
.kill_sb = kill_litter_super,
+ .fs_flags = FS_USERNS_MOUNT,
};
int __init shmem_init(void)
--
1.7.7.6
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