Re: [PATCH] obscure pid implementation fix (v2)

From: William Lee Irwin III
Date: Wed Sep 01 2004 - 10:43:20 EST


On Wed, Sep 01, 2004 at 03:46:07PM +0400, Kirill Korotaev wrote:
>> I remade the previous patch against the latest Linus tree, please apply.
>> This patch fixes strange and obscure pid implementation in current kernels:
>> - it removes calling of put_task_struct() from detach_pid()
>> under tasklist_lock. This allows to use blocking calls
>> in security_task_free() hooks (in __put_task_struct()).
>> - it saves some space = 5*5 ints = 100 bytes in task_struct
>> - it's smaller and tidy, more straigthforward and doesn't use
>> any knowledge about pids using and assignment.
>> - it removes pid_links and pid_struct doesn't hold reference counters
>> on task_struct. instead, new pid_structs and linked altogether and
>> only one of them is inserted in hash_list.
>> Signed-off-by: Kirill Korotaev (kksx@xxxxxxx)

On Wed, Sep 01, 2004 at 08:36:24AM -0700, William Lee Irwin III wrote:
> Could you not rename struct pid and not rename for_each_task_pid()?

And not rename ->hash_chain.

Thanks.


-- wli
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