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Christoph Hellwig
9fde034864
Add a m68k-only set_fc helper to set the SFC and DFC registers for the few places that need to override it for special MM operations, but disconnect that from the deprecated kernel-wide set_fs() API. Note that the SFC/DFC registers are context switched, so there is no need to disable preemption. Partially based on an earlier patch from Linus Torvalds <[email protected]>. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Michael Schmitz <[email protected]> Tested-by: Michael Schmitz <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Geert Uytterhoeven <[email protected]>