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Commit 2bce774e authored Nov 15, 2017 by Wang Long Committed by Linus Torvalds Nov 15, 2017

writeback: remove unused function parameter

The parameter `struct bdi_writeback *wb` is not been used in the
function body.  Remove it.

Link: http://lkml.kernel.org/r/1509685485-15278-1-git-send-email-wanglong19@meituan.com


Signed-off-by: Wang Long <wanglong19@meituan.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 0a7f682d

include/linux/backing-dev.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -93,7 +93,7 @@ extern void wb_writeout_inc(struct bdi_writeback *wb);
		/*
		* maximal error of a stat counter.
		*/
		static inline unsigned long wb_stat_error(struct bdi_writeback *wb)
		static inline unsigned long wb_stat_error(void)
		{
		#ifdef CONFIG_SMP
		return nr_cpu_ids * WB_STAT_BATCH;

mm/page-writeback.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -1545,7 +1545,7 @@ static inline void wb_dirty_limits(struct dirty_throttle_control *dtc)
		* actually dirty; with m+n sitting in the percpu
		* deltas.
		*/
		if (dtc->wb_thresh < 2 * wb_stat_error(wb)) {
		if (dtc->wb_thresh < 2 * wb_stat_error()) {
		wb_reclaimable = wb_stat_sum(wb, WB_RECLAIMABLE);
		dtc->wb_dirty = wb_reclaimable + wb_stat_sum(wb, WB_WRITEBACK);
		} else {
		@@ -1803,7 +1803,7 @@ static void balance_dirty_pages(struct bdi_writeback *wb,
		* more page. However wb_dirty has accounting errors. So use
		* the larger and more IO friendly wb_stat_error.
		*/
		if (sdtc->wb_dirty <= wb_stat_error(wb))
		if (sdtc->wb_dirty <= wb_stat_error())
		break;

		if (fatal_signal_pending(current))