[RESEND PATCH 3/4] futex: Remove unused or redundant includes

[Andrà Almeida]

Since 82af7aca ("Removal of FUTEX_FD"), some includes related to file
operations aren't needed anymore. More investigation around the includes
showed that a lot of includes aren't required for compilation, possible
due to redundant includes. Simplify the code by removing unused
includes.

Signed-off-by: Andrà Almeida <andrealmeid@xxxxxxxxxxxxx>
---
To test this code, I compiled with different configurations (x86_64,
i386, with x32 ABI supported enabled/disabled), and ran futex selftests.
---
 kernel/futex.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/kernel/futex.c b/kernel/futex.c
index 362fbca6d614..697835ad5bff 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -31,31 +31,13 @@
  *  "The futexes are also cursed."
  *  "But they come in a choice of three flavours!"
  */
-#include <linux/compat.h>
-#include <linux/slab.h>
-#include <linux/poll.h>
-#include <linux/fs.h>
-#include <linux/file.h>
 #include <linux/jhash.h>
-#include <linux/init.h>
-#include <linux/futex.h>
-#include <linux/mount.h>
 #include <linux/pagemap.h>
 #include <linux/syscalls.h>
-#include <linux/signal.h>
-#include <linux/export.h>
-#include <linux/magic.h>
-#include <linux/pid.h>
-#include <linux/nsproxy.h>
-#include <linux/ptrace.h>
-#include <linux/sched/rt.h>
-#include <linux/sched/wake_q.h>
-#include <linux/sched/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/freezer.h>
 #include <linux/memblock.h>
 #include <linux/fault-inject.h>
-#include <linux/refcount.h>
 
 #include <asm/futex.h>
 
-- 
2.27.0