OpenAFS Master Repository branch, openafs-stable-1_8_x, updated. openafs-stable-1_8_7-100-gaaa7043

[Gerrit Code Review]

The following commit has been merged in the openafs-stable-1_8_x branch:
commit aaa7043a154d35838e65bc28473355c452339bcc
Author: Andrew Deason <adeason@sinenomine.net>
Date:   Thu Jan 28 16:59:47 2021 -0600

    LINUX: Fix includes for fatal_signal_pending test
    
    Commit 8b6ae289 (LINUX: Avoid lookup ENOENT on fatal signals) added a
    configure test for fatal_signal_pending(). However, this check fails
    incorrectly ever since Linux 4.11, because fatal_signal_pending() was moved
    from linux/sched.h to linux/sched/signal.h in Linux commit 2a1f062a
    (sched/headers: Move signal wakeup [...]). Fix this by including
    linux/sched/signal.h if we have it during the configure test.
    
    A false negative on this configure test doesn't break the build, but
    it disables one of our safeguards preventing incorrect negative
    dentries at runtime. The function fatal_signal_pending() hasn't
    changed in quite some time (except for what header it lives in); it
    was introduced in Linux 2.6.25 via Linux commit f776d12d (Add
    fatal_signal_pending). So to try to avoid this mistake again in the
    future, make it so a missing fatal_signal_pending() breaks the build
    if we're on Linux 2.6.25+.
    
    Reviewed-on: https://gerrit.openafs.org/14508
    Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    (cherry picked from commit 0c1465e4f3310daa54f1e799f76237604222666d)
    
    Change-Id: I1334c060f8ab5733461ebf7c191dffa7be830021
    Reviewed-on: https://gerrit.openafs.org/14509
    Reviewed-by: Cheyenne Wills <cwills@sinenomine.net>
    Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
    Reviewed-by: Andrew Deason <adeason@sinenomine.net>
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>

 src/afs/LINUX/osi_vnodeops.c |    2 ++
 src/cf/linux-kernel-func.m4  |    7 ++++++-
 2 files changed, 8 insertions(+), 1 deletions(-)

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