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RE: x86: Support for lazy preemption in Debian Linux 4.14.20 AMD64

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Niltze [Hello], Thomas-

FYI
Starting from Linux kernel 4.14.18, arch/x86/include/asm/thread_info.h
adds an extra line of code that affects your patch --included in
Debian kernel packaging for Linux 4.14.17 / 4.15.4:
debian/patches/features/all/rt/x86-preempt-lazy.patch
i.e.,
...
struct task_struct;
#include <asm/cpufeature.h>
#include <linux/atomic.h>

struct thread_info {
        unsigned long           flags;          /* low level flags */
        u32                     status;         /* thread synchronous flags */
...

When Debian packaging applies the RT patch with fuzz=0, it fails.

Accordingly, I edited your patch (attached) for it to apply (fuzz=0)
to my subject Debian kernel -- *assuming* the RT kernel version will
want to keep the new line of code.


Best Professional Regards.

-- 
Jose R R
http://metztli.it
---------------------------------------------------------------------------------------------
Download Metztli Reiser4: Debian Stretch w/ Linux 4.14 AMD64
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RE: x86: Support for lazy preemption in Debian Linux 4.14.20 AMD64 Jose R R <jose.r.r@metztli.com> - 2018-02-20 12:30 +0100

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