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* Linux 4.8 compat: new s_user_ns member of struct super_blockNikolay Borisov2016-08-081-0/+21
Kernel 4.8 paved the way to enabling mounting a file system inside a non-init user namespace. To facilitate this a s_user_ns member was added holding the userns in which the filesystem's instance was mounted. This enables doing the uid/gid translation relative to this particular username space and not the default init_user_ns. Signed-off-by: Nikolay Borisov <[email protected]> Signed-off-by: Chunwei Chen <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #4928