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Remove struct task_struct::io_wait

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Hell knows what happened in commit 63b05203af57e7de4f3bb63b8b81d43bc196d32b
during 2.6.9 development.  Commit introduced io_wait field which remained
write-only than and still remains write-only.

Also garbage collect macros which "use" io_wait.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan
2007-10-18 03:04:56 -07:00
committed by Linus Torvalds
parent 9cd9a0058d
commit 6212e3a388
4 changed files with 2 additions and 34 deletions
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kernel/fork.c
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@ -1084,7 +1084,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
p->security = NULL;
#endif
p->io_context = NULL;
p->io_wait = NULL;
p->audit_context = NULL;
cpuset_fork(p);
#ifdef CONFIG_NUMA