Hi,

while running firefly i've seen that each  osd log prints:
2015-04-21 10:24:49.498048 7fa9e925d780  0
xfsfilestorebackend(/ceph/osd.49/) detect_feature: extsize is disabled
by conf

The firefly release notes V0.80.4:
osd: disable XFS extsize hint by default (#8830, Samuel Just)

But hammer also mentions:
osd: verify kernel is new enough before using XFS extsize ioctl, enable
by default (#9956 Sage Weil)

I'm now confused.

Should i enable this one? Or keep it disabled? What's the advantage /
disadvantage?

I'm running 3.18 Kernel.

Greets,
Stefan
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