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author | Eric W. Biederman <ebiederm@xmission.com> | 2007-02-12 00:52:58 -0800 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-12 09:48:32 -0800 |
commit | 3e7cd6c413c9e6fbb5e1ee2acdadb4ababd2d474 (patch) | |
tree | de97d00794ee0c787b6c551a91e33fb1faa48caa /fs/ioprio.c | |
parent | 0475ac0845f9295bc5f69af45f58dff2c104c8d1 (diff) | |
download | op-kernel-dev-3e7cd6c413c9e6fbb5e1ee2acdadb4ababd2d474.zip op-kernel-dev-3e7cd6c413c9e6fbb5e1ee2acdadb4ababd2d474.tar.gz |
[PATCH] pid: replace is_orphaned_pgrp with is_current_pgrp_orphaned
Every call to is_orphaned_pgrp passed in process_group(current) which is racy
with respect to another thread changing our process group. It didn't bite us
because we were dealing with integers and the worse we would get would be a
stale answer.
In switching the checks to use struct pid to be a little more efficient and
prepare the way for pid namespaces this race became apparent.
So I simplified the calls to the more specialized is_current_pgrp_orphaned so
I didn't have to worry about making logic changes to avoid the race.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ioprio.c')
0 files changed, 0 insertions, 0 deletions