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| author | Christoph Hellwig <hch@lst.de> | 2006-03-11 03:27:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-11 09:19:34 -0800 |
| commit | 7cd9013be6c22f3ff6f777354f766c8c0b955e17 (patch) | |
| tree | 328e45aadb4c5bc9b6cd530be03572070201f5e5 /kernel/fork.c | |
| parent | 27d162e26a873883937b64526445877bd3341d23 (diff) | |
| download | op-kernel-dev-7cd9013be6c22f3ff6f777354f766c8c0b955e17.zip op-kernel-dev-7cd9013be6c22f3ff6f777354f766c8c0b955e17.tar.gz | |
[PATCH] remove __put_task_struct_cb export again
The patch '[PATCH] RCU signal handling' [1] added an export for
__put_task_struct_cb, a put_task_struct helper newly introduced in that
patch. But the put_task_struct couldn't be used modular previously as
__put_task_struct wasn't exported. There are not callers of it in modular
code, and it shouldn't be exported because we don't want drivers to hold
references to task_structs.
This patch removes the export and folds __put_task_struct into
__put_task_struct_cb as there's no other caller.
[1] http://www2.kernel.org/git/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e56d090310d7625ecb43a1eeebd479f04affb48b
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index fbea12d..a8eab86 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -108,8 +108,10 @@ void free_task(struct task_struct *tsk) } EXPORT_SYMBOL(free_task); -void __put_task_struct(struct task_struct *tsk) +void __put_task_struct_cb(struct rcu_head *rhp) { + struct task_struct *tsk = container_of(rhp, struct task_struct, rcu); + WARN_ON(!(tsk->exit_state & (EXIT_DEAD | EXIT_ZOMBIE))); WARN_ON(atomic_read(&tsk->usage)); WARN_ON(tsk == current); |
