From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-mtd@lists.infradead.org>, <richard@nod.at>,
<dedekind1@gmail.com>, <adrian.hunter@intel.com>,
<matthias.bgg@gmail.com>
Cc: linger.lee@mediatek.com, chienwei.chang@mediatek.com,
kuohong.wang@mediatek.com, linux-mediatek@lists.infradead.org,
Stanley Chu <stanley.chu@mediatek.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1] ubifs: support page statistics in vmstat
Date: Thu, 18 Jul 2019 20:03:57 +0800 [thread overview]
Message-ID: <1563451437-15725-1-git-send-email-stanley.chu@mediatek.com> (raw)
Currently PGPGIN and PGPGOUT statistics in vmstat is only
hooked in submit_bio() for block device I/O path.
This patch adds this feature for ubifs as well.
Change-Id: I8505bd2a7aa9eadc6abcd68b7d8b870752e71339
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
fs/ubifs/file.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 512e7d9c60cd..ffe7ce77f389 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -902,6 +902,8 @@ static int ubifs_bulk_read(struct page *page)
static int ubifs_readpage(struct file *file, struct page *page)
{
+ count_vm_events(PGPGIN, PAGE_CACHE_SIZE >> 9);
+
if (ubifs_bulk_read(page))
return 0;
do_readpage(page);
@@ -1032,6 +1034,8 @@ static int ubifs_writepage(struct page *page, struct writeback_control *wbc)
goto out_unlock;
}
+ count_vm_events(PGPGOUT, PAGE_CACHE_SIZE >> 9);
+
spin_lock(&ui->ui_lock);
synced_i_size = ui->synced_i_size;
spin_unlock(&ui->ui_lock);
--
2.18.0
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next reply other threads:[~2019-07-18 12:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-18 12:03 Stanley Chu [this message]
2019-07-21 20:15 ` [PATCH v1] ubifs: support page statistics in vmstat Richard Weinberger
2019-09-15 22:05 ` Richard Weinberger
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