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writeback: clean up wb_dirty_limit()

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The function name wb_dirty_limit(), its argument @dirty and the local
variable @wb_dirty are mortally confusing given that the function
calculates per-wb threshold value not dirty pages, especially given
that @dirty and @wb_dirty are used elsewhere for dirty pages.

Let's rename the function to wb_calc_thresh() and wb_dirty to
wb_thresh.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Greg Thelen <gthelen@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Tejun Heo 2015-05-22 18:23:19 -04:00 • committed by Jens Axboe
parent 733a572e66
commit 0d960a383a
4 changed files with 20 additions and 20 deletions
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2
fs/fs-writeback.c
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@ -1081,7 +1081,7 @@ static bool over_bground_thresh(struct bdi_writeback *wb)
global_page_state(NR_UNSTABLE_NFS) > background_thresh)
return true;
if (wb_stat(wb, WB_RECLAIMABLE) > wb_dirty_limit(wb, background_thresh))
if (wb_stat(wb, WB_RECLAIMABLE) > wb_calc_thresh(wb, background_thresh))
return true;
return false;