[PATCH] deprecate the tasklist_lock export

[Christoph Hellwig <hch@lst.de>]

Drivers have no business looking at the task list and thus using this
lock.  The only possibly modular users left are:

 arch/ia64/kernel/mca.c
 drivers/edac/edac_mc.c
 fs/binfmt_elf.c

which I'll send out fixes for soon.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6/Documentation/feature-removal-schedule.txt
===================================================================
--- linux-2.6.orig/Documentation/feature-removal-schedule.txt	2006-02-15 14:03:37.000000000 +0100
+++ linux-2.6/Documentation/feature-removal-schedule.txt	2006-02-15 14:05:37.000000000 +0100
@@ -182,3 +182,14 @@
 	implementation details and provides a higherlevel interface that
 	prevents bugs and code duplication
 Who:	Christoph Hellwig <hch@lst.de>
+
+---------------------------
+
+What:	remove EXPORT_SYMBOL(tasklist_lock)
+When:	August 2006
+Files:	kernel/fork.c
+Why:	tasklist_lock protects the kernel internal task list.  Modules have
+	no business looking at it, and all instances in drivers have been due
+	to use of too-lowlevel APIs.  Having this symbol exported prevents
+	moving to more scalable locking schemes for the task list.
+Who:	Christoph Hellwig <hch@lst.de>
-
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