Messages in this thread |  | | Date | Fri, 20 Jun 2014 09:25:20 +0100 | | From | Will Deacon <> | | Subject | Re: [PATCH] ARM64: implement TASK_SIZE_OF |
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Hi Colin,
On Wed, Jun 18, 2014 at 09:10:09PM +0100, Colin Cross wrote: > include/linux/sched.h implements TASK_SIZE_OF as TASK_SIZE if it > is not set by the architecture headers. TASK_SIZE uses the > current task to determine the size of the virtual address space. > On a 64-bit kernel this will cause reading /proc/pid/pagemap of a > 64-bit process from a 32-bit process to return EOF when it reads > past 0xffffffff. > > Implement TASK_SIZE_OF exactly the same as TASK_SIZE with > test_tsk_thread_flag instead of test_thread_flag.
Looks sane to me.
Acked-by: Will Deacon <will.deacon@arm.com>
I take it you're being bitten by this in real software, hence the CC stable tag?
Will
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