On Sat, Aug 18, 2018 at 10:03:00AM +0800, Jiecheng Wu wrote: > Function mnt_alloc_id() defined in fs/namespace.c calls ida_pre_get() to allocate memory. It may return 0 on failure. The return code should be checked against 0. Please ignore as I've ripped all this code out in: http://git.infradead.org/users/willy/linux-dax.git/commitdiff/4d1a8396bab0644d4d444dd28c0d622a22f39939?hp=20015ec08dd23a69776d86258c98e9b729dede8c which is queued for Linus this merge window.
