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    SubjectRe: [PATCH] quota: Turn quotas off when remounting read-only
    Andrew Morton wrote:
    > On Thu, 7 Feb 2008 15:37:21 +0100 Jan Kara <> wrote:
    >> Turn off quotas before filesystem is remounted read only. Otherwise quota will
    >> try to write to read-only filesystem which does no good... We could also just
    >> refuse to remount ro when quota is enabled but turning quota off is consistent
    >> with what we do on umount.

    [a nice one-liner snipped]

    > Cool. And this is applicable to 2.6.23, 2.6.22 and even earlier, isn't it?

    Provided the amount of time this issue exists, I don't think it's worth
    to push it to -stable. It's an oooooooold, issue, which happens quite
    rarely, and no one bothered to report it so far... But it's not my
    call... ;)

    But... I'm thinking about this scenario:

    # mount /data
    # quotaon /data
    (some maintenance stuff to be planned)
    # mount -o remount,ro /data
    (do backup etc)
    # mount -r remount,rw /data

    at this point, it's expected that quota on /data is enabled.
    After this patch, it's not anymore...

    I think it's more usual scenario than mine (umount instead of
    remount-rw). And this change will break it. So I'm not sure
    what really to do here. Probably refusing remount-ro if quota
    is on is better... it's annoying for sure, but at least it's
    explicit, and avoids the handg too.


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      Last update: 2008-02-07 20:31    [W:0.021 / U:15.220 seconds]
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