writeback: move wb_wakeup_delayed defination to fs-writeback.c
The wb_wakeup_delayed is only used in fs-writeback.c. Move it to fs-writeback.c after defination of wb_wakeup and make it static. Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Link: https://lore.kernel.org/r/20240118203339.764093-1-shikemeng@huaweicloud.com Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org>
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@ -141,6 +141,31 @@ static void wb_wakeup(struct bdi_writeback *wb)
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spin_unlock_irq(&wb->work_lock);
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spin_unlock_irq(&wb->work_lock);
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}
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}
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/*
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* This function is used when the first inode for this wb is marked dirty. It
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* wakes-up the corresponding bdi thread which should then take care of the
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* periodic background write-out of dirty inodes. Since the write-out would
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* starts only 'dirty_writeback_interval' centisecs from now anyway, we just
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* set up a timer which wakes the bdi thread up later.
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*
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* Note, we wouldn't bother setting up the timer, but this function is on the
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* fast-path (used by '__mark_inode_dirty()'), so we save few context switches
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* by delaying the wake-up.
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*
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* We have to be careful not to postpone flush work if it is scheduled for
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* earlier. Thus we use queue_delayed_work().
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*/
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static void wb_wakeup_delayed(struct bdi_writeback *wb)
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{
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unsigned long timeout;
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timeout = msecs_to_jiffies(dirty_writeback_interval * 10);
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spin_lock_irq(&wb->work_lock);
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if (test_bit(WB_registered, &wb->state))
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queue_delayed_work(bdi_wq, &wb->dwork, timeout);
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spin_unlock_irq(&wb->work_lock);
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}
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static void finish_writeback_work(struct bdi_writeback *wb,
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static void finish_writeback_work(struct bdi_writeback *wb,
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struct wb_writeback_work *work)
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struct wb_writeback_work *work)
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{
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{
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@ -38,7 +38,6 @@ struct backing_dev_info *bdi_alloc(int node_id);
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void wb_start_background_writeback(struct bdi_writeback *wb);
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void wb_start_background_writeback(struct bdi_writeback *wb);
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void wb_workfn(struct work_struct *work);
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void wb_workfn(struct work_struct *work);
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void wb_wakeup_delayed(struct bdi_writeback *wb);
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void wb_wait_for_completion(struct wb_completion *done);
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void wb_wait_for_completion(struct wb_completion *done);
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@ -372,31 +372,6 @@ static int __init default_bdi_init(void)
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}
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}
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subsys_initcall(default_bdi_init);
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subsys_initcall(default_bdi_init);
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/*
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* This function is used when the first inode for this wb is marked dirty. It
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* wakes-up the corresponding bdi thread which should then take care of the
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* periodic background write-out of dirty inodes. Since the write-out would
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* starts only 'dirty_writeback_interval' centisecs from now anyway, we just
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* set up a timer which wakes the bdi thread up later.
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*
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* Note, we wouldn't bother setting up the timer, but this function is on the
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* fast-path (used by '__mark_inode_dirty()'), so we save few context switches
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* by delaying the wake-up.
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*
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* We have to be careful not to postpone flush work if it is scheduled for
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* earlier. Thus we use queue_delayed_work().
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*/
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void wb_wakeup_delayed(struct bdi_writeback *wb)
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{
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unsigned long timeout;
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timeout = msecs_to_jiffies(dirty_writeback_interval * 10);
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spin_lock_irq(&wb->work_lock);
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if (test_bit(WB_registered, &wb->state))
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queue_delayed_work(bdi_wq, &wb->dwork, timeout);
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spin_unlock_irq(&wb->work_lock);
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}
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static void wb_update_bandwidth_workfn(struct work_struct *work)
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static void wb_update_bandwidth_workfn(struct work_struct *work)
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{
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{
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struct bdi_writeback *wb = container_of(to_delayed_work(work),
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struct bdi_writeback *wb = container_of(to_delayed_work(work),
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