commit 3b66a1edb01b82269a668a478625765b1fa4936f
author Roman Zippel <zippel@linux-m68k.org> Sun Nov 13 16:06:59 2005 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> Sun Nov 13 18:14:14 2005 -0800
tree 417ead0264e34fdd1ec345a26d8670427be4829c
parent abd03753bd1532c05eb13231569a5257b007e29c

[PATCH] m68k: convert thread flags to use bit fields

Remove task_work structure, use the standard thread flags functions and use
shifts in entry.S to test the thread flags.  Add a few local labels to entry.S
to allow gas to generate short jumps.

Finally it changes a number of inline functions in thread_info.h to macros to
delay the current_thread_info() usage, which requires on m68k a structure
(task_struct) not yet defined at this point.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/thread_info.h

diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index d252f45..1c4eb41 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -27,31 +27,6 @@
  * - pass TIF_xxxx constants to these functions
  */
 
-static inline void set_thread_flag(int flag)
-{
-	set_bit(flag,&current_thread_info()->flags);
-}
-
-static inline void clear_thread_flag(int flag)
-{
-	clear_bit(flag,&current_thread_info()->flags);
-}
-
-static inline int test_and_set_thread_flag(int flag)
-{
-	return test_and_set_bit(flag,&current_thread_info()->flags);
-}
-
-static inline int test_and_clear_thread_flag(int flag)
-{
-	return test_and_clear_bit(flag,&current_thread_info()->flags);
-}
-
-static inline int test_thread_flag(int flag)
-{
-	return test_bit(flag,&current_thread_info()->flags);
-}
-
 static inline void set_ti_thread_flag(struct thread_info *ti, int flag)
 {
 	set_bit(flag,&ti->flags);
@@ -77,15 +52,19 @@
 	return test_bit(flag,&ti->flags);
 }
 
-static inline void set_need_resched(void)
-{
-	set_thread_flag(TIF_NEED_RESCHED);
-}
+#define set_thread_flag(flag) \
+	set_ti_thread_flag(current_thread_info(), flag)
+#define clear_thread_flag(flag) \
+	clear_ti_thread_flag(current_thread_info(), flag)
+#define test_and_set_thread_flag(flag) \
+	test_and_set_ti_thread_flag(current_thread_info(), flag)
+#define test_and_clear_thread_flag(flag) \
+	test_and_clear_ti_thread_flag(current_thread_info(), flag)
+#define test_thread_flag(flag) \
+	test_ti_thread_flag(current_thread_info(), flag)
 
-static inline void clear_need_resched(void)
-{
-	clear_thread_flag(TIF_NEED_RESCHED);
-}
+#define set_need_resched()	set_thread_flag(TIF_NEED_RESCHED)
+#define clear_need_resched()	clear_thread_flag(TIF_NEED_RESCHED)
 
 #endif