From: Seth Forshee <seth.forshee@xxxxxxxxxxxxx> To be able to mount fuse from non-init user namespaces, it's necessary to set FS_USERNS_MOUNT flag to fs_flags. Patch v4 is available: https://patchwork.kernel.org/patch/8944681/ Cc: linux-fsdevel@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: Miklos Szeredi <mszeredi@xxxxxxxxxx> Signed-off-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx> [dongsu: add a simple commit messasge] Signed-off-by: Dongsu Park <dongsu@xxxxxxxxxx> --- fs/fuse/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 7f6b2e55..8c98edee 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1212,7 +1212,7 @@ static void fuse_kill_sb_anon(struct super_block *sb) static struct file_system_type fuse_fs_type = { .owner = THIS_MODULE, .name = "fuse", - .fs_flags = FS_HAS_SUBTYPE, + .fs_flags = FS_HAS_SUBTYPE | FS_USERNS_MOUNT, .mount = fuse_mount, .kill_sb = fuse_kill_sb_anon, }; @@ -1244,7 +1244,7 @@ static struct file_system_type fuseblk_fs_type = { .name = "fuseblk", .mount = fuse_mount_blk, .kill_sb = fuse_kill_sb_blk, - .fs_flags = FS_REQUIRES_DEV | FS_HAS_SUBTYPE, + .fs_flags = FS_REQUIRES_DEV | FS_HAS_SUBTYPE | FS_USERNS_MOUNT, }; MODULE_ALIAS_FS("fuseblk"); -- 2.13.6
