Hi David, Mark,
In the recent test for new btrfs-convert backward compatibility, I found
that cmds-fi-du.c uses FIEMAP_EXTENT_SHARED bits, which is not present
in kernel of old distributions like RHEL6 (Sorry, didn't test on
openSUSE equivalent).
Unlike e2fsprogs, we can check its version with pkgconfig, any idea to
avoid such compiling error?
And further more, without kernel support for FIEMAP_EXTENT_SHARED, will
fi-du work anymore?
Thanks,
Qu
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