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Re: [PATCH v1] mm/madvise: pass return code of memory_failure() to userspace

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On Fri, 22 Jan 2016 17:27:57 +0900 Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> wrote:

> Currently the return value of memory_failure() is not passed to userspace, which
> is inconvenient for test programs that want to know the result of error handling.
> So let's return it to the caller as we already do in MADV_SOFT_OFFLINE case.

I updated this to mention that it's for madvise(MADV_HWPOISON):

: Currently the return value of memory_failure() is not passed to userspace
: when madvise(MADV_HWPOISON) is used.  This is inconvenient for test
: programs that want to know the result of error handling.  So let's return
: it to the caller as we already do in the MADV_SOFT_OFFLINE case.

btw, MADV_SOFT_OFFLINE and MADV_HWPOISON are not documented in that
comment block over sys_madvise().  Fixy please?  You might want to
check that no other MADV_foo values have been omitted.

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[PATCH v1] mm/madvise: pass return code of memory_failure() to userspace Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-01-22 09:30 +0100
  Re: [PATCH v1] mm/madvise: pass return code of memory_failure() to  userspace Andrew Morton <akpm@linux-foundation.org> - 2016-01-27 00:30 +0100
    Re: [PATCH v1] mm/madvise: pass return code of memory_failure() to  userspace Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> - 2016-01-27 02:30 +0100
  Re: [PATCH v1] mm/madvise: pass return code of memory_failure() to  userspace Vlastimil Babka <vbabka@suse.cz> - 2016-01-27 15:00 +0100

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