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[PATCH] remove the tasklist_lock export

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As announced half a year ago this patch will remove the tasklist_lock
export.  The previous two patches got rid of the remaining modular users.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Hellwig 2006-07-10 04:45:40 -07:00 committed by Linus Torvalds
parent f84dfe8296
commit c59923a15c
2 changed files with 1 additions and 14 deletions
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11
Documentation/feature-removal-schedule.txt
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@ -166,17 +166,6 @@ Who: Arjan van de Ven <arjan@linux.intel.com>
---------------------------
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>
---------------------------
What: mount/umount uevents
When: February 2007
Why: These events are not correct, and do not properly let userspace know

4
kernel/fork.c
View File

@ -61,9 +61,7 @@ int max_threads; /* tunable limit on nr_threads */
DEFINE_PER_CPU(unsigned long, process_counts) = 0;
__cacheline_aligned DEFINE_RWLOCK(tasklist_lock); /* outer */
EXPORT_SYMBOL(tasklist_lock);
__cacheline_aligned DEFINE_RWLOCK(tasklist_lock); /* outer */
int nr_processes(void)
{