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authorAdrian Bunk <bunk@kernel.org>2008-07-25 12:45:35 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 21:53:27 +0400
commitb03f6489f9f27dc519a4c60ebf39cc7b8a58eae7 (patch)
tree6329fc91e860f2949d737c611aa846eb2d653103 /kernel/profile.c
parent696adfe84c11c571a1e0863460ff0ec142b4e5a9 (diff)
downloadlinux-b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7.tar.xz
build kernel/profile.o only when requested
Build kernel/profile.o only if CONFIG_PROFILING is enabled. This makes CONFIG_PROFILING=n kernels smaller. As a bonus, some profile_tick() calls and one branch from schedule() are now eliminated with CONFIG_PROFILING=n (but I doubt these are measurable effects). This patch changes the effects of CONFIG_PROFILING=n, but I don't think having more than two choices would be the better choice. This patch also adds the name of the first parameter to the prototypes of profile_{hits,tick}() since I anyway had to add them for the dummy functions. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/profile.c')
-rw-r--r--kernel/profile.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/profile.c b/kernel/profile.c
index 58926411eb2a..cd26bed4cc26 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -112,8 +112,6 @@ void __init profile_init(void)
/* Profile event notifications */
-#ifdef CONFIG_PROFILING
-
static BLOCKING_NOTIFIER_HEAD(task_exit_notifier);
static ATOMIC_NOTIFIER_HEAD(task_free_notifier);
static BLOCKING_NOTIFIER_HEAD(munmap_notifier);
@@ -203,8 +201,6 @@ void unregister_timer_hook(int (*hook)(struct pt_regs *))
}
EXPORT_SYMBOL_GPL(unregister_timer_hook);
-#endif /* CONFIG_PROFILING */
-
#ifdef CONFIG_SMP
/*