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authorTejun Heo <tj@kernel.org>2010-12-24 16:14:20 +0100
committerTejun Heo <tj@kernel.org>2010-12-24 16:14:20 +0100
commitee4569a3a75e1a5ed53b0c4ff4d9fc456aa98ef1 (patch)
tree97f92d5cea13cdd1f2419d3b7cedfd384a4df6b5 /init
parent6dca467a76bb0ed71d65143b235e0ef80e44436f (diff)
downloadlinux-2.6.38-lt-ux500-ee4569a3a75e1a5ed53b0c4ff4d9fc456aa98ef1.tar.gz
init: don't call flush_scheduled_work() from do_initcalls()
The call to flush_scheduled_work() in do_initcalls() is there to make sure all works queued to system_wq by initcalls finish before the init sections are dropped. However, the call doesn't make much sense at this point - there already are multiple different workqueues and different subsystems are free to create and use their own. Ordering requirements are and should be expressed explicitly. Drop the call to prepare for the deprecation and removal of flush_scheduled_work(). Andrew suggested adding sanity check where the workqueue code checks whether any pending or running work has the work function in the init text section. However, checking this for running works requires the worker to keep track of the current function being executed, and checking only the pending works will miss most cases. As a violation will almost always be caught by the usual page fault mechanism, I don't think it would be worthwhile to make the workqueue code track extra state just for this. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/main.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/init/main.c b/init/main.c
index 8646401f7a0..5421e8f1628 100644
--- a/init/main.c
+++ b/init/main.c
@@ -775,9 +775,6 @@ static void __init do_initcalls(void)
for (fn = __early_initcall_end; fn < __initcall_end; fn++)
do_one_initcall(*fn);
-
- /* Make sure there is no pending stuff from the initcall sequence */
- flush_scheduled_work();
}
/*