[Bugs] [Bug 1379769] GlusterFS fails to build on old Linux distros with linux/ oom.h missing

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1379769



--- Comment #7 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: http://review.gluster.org/15587 committed in master by Kaleb KEITHLEY
(kkeithle at redhat.com) 
------
commit de07155bfae3c5846797cbb19ee044751cbe6f6e
Author: Oleksandr Natalenko <onatalen at redhat.com>
Date:   Wed Sep 28 14:29:23 2016 +0200

    glusterfsd/main: fix OOM adjustment for older kernels

    Milind Changire reported that GlusterFS fails to build on RHEL5
    because linux/oom.h is unavailable.

    Milind's initial patch disables OOM adjustment completely
    for those environments that do not have this header. However,
    I'd take another approach that:

    1) checks for linux/oom.h in compile-time and defines necessary
    constants if the header is not present;
    2) checks for available OOM API in /proc in run-time and uses it
    accordingly.

    This allows OOM to be adjusted properly on RHEL5 (the kernel is pretty new
    to present /proc API for that) as well as RHEL6 (the kernel has many thing
    backported including new /proc API).

    Change-Id: I1bc610586872d208430575c149a7d0c54bd82370
    BUG: 1379769
    Signed-off-by: Oleksandr Natalenko <onatalen at redhat.com>
    Reviewed-on: http://review.gluster.org/15587
    Tested-by: Oleksandr Natalenko <oleksandr at natalenko.name>
    Reviewed-by: Niels de Vos <ndevos at redhat.com>
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>

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