futex: Use a folio instead of a page

The futex code already handles compound pages correctly, but using a folio
tells the compiler that there is already a reference to the head page and
it doesn't need to call compound_head() again.

Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Davidlohr Bueso <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions