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Set SquashFS decompression options for all flavors to match RHEL

Bohdan Khomutskyi requested to merge bkhomuts/kernel-ark:squashfs-decompression-optimizations into os-build

I discovered that several kernel configuration options related to SquashFS decompression are set sub-optimally in Fedora. But the optimal configuration is used in RHEL 8. If we set those options to match RHEL, a performance improvement could be achieved while reading from compressed Squash filesystem.

Please see my original message in Fedora kernel mailing list archive: https://lists.fedoraproject.org/archives/list/kernel@lists.fedoraproject.org/thread/4M6WYFOZAZYIEVNZTBVM2BTT7SIEZBNQ/ There you can find an excerpt from Linux documentation for the changed options.

I found the disparity while working on Fedora change proposal: https://fedoraproject.org/wiki/Changes/OptimizeSquashFS

Signed-off-by: Bohdan Khomutskyi bkhomuts@redhat.com

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