kernel: Remove unnecessary inclusions of asm/semaphore.h

None of these files use any of the functionality promised by
asm/semaphore.h.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

6 files changed, 1 insertions, 7 deletions

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 06a0e2775651..6782dce93d01 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -29,7 +29,6 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/system.h>
-#include <asm/semaphore.h>
 #include <asm/sections.h>
 
 /* Per cpu memory for storing cpu states in case of system crash. */
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 0ac887882f90..92dd1bcaa0df 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -13,7 +13,6 @@
 #include <linux/file.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
-#include <asm/semaphore.h>
 
 #define KTHREAD_NICE_LEVEL (-5)
 
diff --git a/kernel/module.c b/kernel/module.c
index 5d437bffd8dc..8d6cccc6c3cf 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -43,7 +43,6 @@
 #include <linux/mutex.h>
 #include <linux/unwind.h>
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
 #include <asm/cacheflush.h>
 #include <linux/license.h>
 #include <asm/sections.h>
@@ -664,7 +663,7 @@ static void free_module(struct module *mod);
 
 static void wait_for_zero_refcount(struct module *mod)
 {
-        /* Since we might sleep for some time, drop the semaphore first */
+        /* Since we might sleep for some time, release the mutex first */
         mutex_unlock(&module_mutex);
         for (;;) {
                 DEBUGP("Looking at refcount...\n");
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index a9b04203a66d..8476956ffd92 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -37,7 +37,6 @@
 #include <linux/mutex.h>
 
 #include <asm/uaccess.h>
-#include <asm/semaphore.h>
 #include <linux/list.h>
 #include <linux/init.h>
 #include <linux/compiler.h>
diff --git a/kernel/profile.c b/kernel/profile.c
index 3b7a1b055122..606d7387265c 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -23,7 +23,6 @@
 #include <linux/highmem.h>
 #include <linux/mutex.h>
 #include <asm/sections.h>
-#include <asm/semaphore.h>
 #include <asm/irq_regs.h>
 #include <asm/ptrace.h>
 
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 6f4e0e13f70c..3da3c2c6702d 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -11,7 +11,6 @@
 #include <linux/interrupt.h>
 
 #include <asm/atomic.h>
-#include <asm/semaphore.h>
 #include <asm/uaccess.h>
 
 /* Since we effect priority and affinity (both of which are visible