Hello, There's no reason for writeback to implement its own worker pool when using workqueue is much simpler and more efficient. This patchset replaces writeback's custom worker pool with unbound workqueue and also exports it to userland using WQ_SYSFS so that it can be tuned from userland as requested a couple releases ago.
This patchset contains the following four patches. 0001-implement-current_is_workqueue_rescuer.patch 0002-writeback-remove-unused-bdi_pending_list.patch 0003-writeback-replace-custom-worker-pool-implementation-.patch 0004-writeback-expose-the-bdi_wq-workqueue.patch 0001-0002 are prep patches. 0003 does the conversion. 0004 makes bdi_wq visible to userland. This patchset is on top of v3.9-rc1 + "workqueue: implement workqueue with custom worker attributes" patchset[1] and available in the following git branch. git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git review-writeback-conversion diffstat follows. Thanks. fs/fs-writeback.c | 102 ++++----------- include/linux/backing-dev.h | 16 -- include/linux/workqueue.h | 1 include/trace/events/writeback.h | 5 kernel/workqueue.c | 13 + mm/backing-dev.c | 259 ++++----------------------------------- 6 files changed, 80 insertions(+), 316 deletions(-) -- tejun [1] http://thread.gmane.org/gmane.linux.kernel/1449826 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
