From: Lai Jiangshan Date: Tue, 22 Jul 2014 05:04:27 +0000 (+0800) Subject: workqueue: remove the stale comment in pwq_unbound_release_workfn() X-Git-Tag: omap-for-v3.17/fixes-against-rc2~192^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29b1cb416a2920fbc70041e4382920ae2d86f426;p=pandora-kernel.git workqueue: remove the stale comment in pwq_unbound_release_workfn() In 75ccf5950f82 ("workqueue: prepare flush_workqueue() for dynamic creation and destrucion of unbound pool_workqueues"), a comment about the synchronization for the pwq in pwq_unbound_release_workfn() was added. The comment claimed the flush_mutex wasn't strictly necessary, it was correct in that time, due to the pwq was protected by workqueue_lock. But it is incorrect now since the wq->flush_mutex was renamed to wq->mutex and workqueue_lock was removed, the wq->mutex is strictly needed. But the comment was miss-updated when the synchronization was changed. This patch removes the incorrect comments and doesn't add any new comment to explain why wq->mutex is needed here, which is definitely obvious and wq->pwqs_node has "WQ" notation in its definition which is better comment. The old commit mentioned above also introduced a comment in link_pwq() about the synchronization. This comment is also removed in this patch since the whole link_pwq() is proteced by wq->mutex. Signed-off-by: Lai Jiangshan Signed-off-by: Tejun Heo --- Reading git-diff-tree failed