Excessive xfs_inode allocations trigger OOM killer

[Florian Weimer]

* Christoph Hellwig:

> can you check if you have CONFIG_COMPACTION enabled in your kernel
> config?  There have been some regressions in the VM code lately that
> made me see similar OOM killer rampage runs, which went away after I
> followed some linux-mm advise to turn it on.

It's already turned on:

$ grep CONFIG_COMPACT /boot/config-4.7.1fw 
CONFIG_COMPACTION=y