msync: fix incorrect fstart calculation (VM/FS
Micro-optimisations).
Btrfs: fix abnormal long waiting in fsync (VM/FS
Micro-optimisations).
Disable patches.suse/Btrfs-fix-abnormal-long-waiting-in-fsync.patch
(bnc#910697)

because it needs to be revisited due partial msync behavior.
Disbale patches.suse/msync-fix-incorrect-fstart-calculation.patch (bnc#910697)

because it needs to be revisited due partial msync behavior.
Disabled patches.suse/mm-msync.c-sync-only-the-requested-range-in-msync.patch (bnc#910697)

because it needs to be revisited due partial msync behavior.