Two more kernel patches

This one is MIPS related, already accepted:
MIPS: Fix TIF_32BIT undefined problem when seccomp is disabled

This one is proc filesystem related:
[PATCH] filp->f_pos not correctly updated in proc_task_readdir

The later one is also MIPS related actually, in a peculiar way:
MIPS N32 does not have getdents64 system call. And because of readdir's implementation in glibc, this bug will be triggered when trying to run pstree or simply 'ls /proc/xxxx/task', where xxxx is the pid of a multithread process.

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