linux-kernel - [PATCH v2 23/46] mm/writeback: Change __wb_writeout_inc() to __wb_writeout

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210622121551.3398730-24-willy@infradead.org>
Date:   Tue, 22 Jun 2021 13:15:28 +0100
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     akpm@...ux-foundation.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 23/46] mm/writeback: Change __wb_writeout_inc() to __wb_writeout_add()

Allow for accounting N pages at once instead of one page at a time.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 mm/page-writeback.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 8079d5ef19df..dc66ff78f033 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -567,12 +567,12 @@ static unsigned long wp_next_time(unsigned long cur_time)
 	return cur_time;
 }
 
-static void wb_domain_writeout_inc(struct wb_domain *dom,
+static void wb_domain_writeout_add(struct wb_domain *dom,
 				   struct fprop_local_percpu *completions,
-				   unsigned int max_prop_frac)
+				   unsigned int max_prop_frac, long nr)
 {
 	__fprop_add_percpu_max(&dom->completions, completions,
-			       max_prop_frac, 1);
+			       max_prop_frac, nr);
 	/* First event after period switching was turned off? */
 	if (unlikely(!dom->period_time)) {
 		/*
@@ -590,18 +590,18 @@ static void wb_domain_writeout_inc(struct wb_domain *dom,
  * Increment @wb's writeout completion count and the global writeout
  * completion count. Called from test_clear_page_writeback().
  */
-static inline void __wb_writeout_inc(struct bdi_writeback *wb)
+static inline void __wb_writeout_add(struct bdi_writeback *wb, long nr)
 {
 	struct wb_domain *cgdom;
 
-	inc_wb_stat(wb, WB_WRITTEN);
-	wb_domain_writeout_inc(&global_wb_domain, &wb->completions,
-			       wb->bdi->max_prop_frac);
+	wb_stat_mod(wb, WB_WRITTEN, nr);
+	wb_domain_writeout_add(&global_wb_domain, &wb->completions,
+			       wb->bdi->max_prop_frac, nr);
 
 	cgdom = mem_cgroup_wb_domain(wb);
 	if (cgdom)
-		wb_domain_writeout_inc(cgdom, wb_memcg_completions(wb),
-				       wb->bdi->max_prop_frac);
+		wb_domain_writeout_add(cgdom, wb_memcg_completions(wb),
+				       wb->bdi->max_prop_frac, nr);
 }
 
 void wb_writeout_inc(struct bdi_writeback *wb)
@@ -609,7 +609,7 @@ void wb_writeout_inc(struct bdi_writeback *wb)
 	unsigned long flags;
 
 	local_irq_save(flags);
-	__wb_writeout_inc(wb);
+	__wb_writeout_add(wb, 1);
 	local_irq_restore(flags);
 }
 EXPORT_SYMBOL_GPL(wb_writeout_inc);
@@ -2747,7 +2747,7 @@ int test_clear_page_writeback(struct page *page)
 				struct bdi_writeback *wb = inode_to_wb(inode);
 
 				dec_wb_stat(wb, WB_WRITEBACK);
-				__wb_writeout_inc(wb);
+				__wb_writeout_add(wb, 1);
 			}
 		}
 
-- 
2.30.2