From: Peng Zhang <zhangpeng362@huawei.com>
To: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<willy@infradead.org>
Cc: <sidhartha.kumar@oracle.com>, <akpm@linux-foundation.org>,
<wangkefeng.wang@huawei.com>, <sunnanyong@huawei.com>,
ZhangPeng <zhangpeng362@huawei.com>
Subject: [PATCH v2 2/9] mm/page_io: remove unneeded SetPageError()
Date: Wed, 19 Jul 2023 17:58:41 +0800 [thread overview]
Message-ID: <20230719095848.3422629-3-zhangpeng362@huawei.com> (raw)
In-Reply-To: <20230719095848.3422629-1-zhangpeng362@huawei.com>
From: ZhangPeng <zhangpeng362@huawei.com>
Nobody checks the PageError()/folio_test_error() for the page/folio in
__end_swap_bio_read/write() and sio_write_complete(). Therefore, we
don't need to set the error flag. Just drop it.
Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
---
mm/page_io.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/mm/page_io.c b/mm/page_io.c
index 3087a69a014b..5ddb5d9c5013 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -32,7 +32,6 @@ static void __end_swap_bio_write(struct bio *bio)
struct page *page = bio_first_page_all(bio);
if (bio->bi_status) {
- SetPageError(page);
/*
* We failed to write the page out to swap-space.
* Re-dirty the page in order to avoid it being reclaimed.
@@ -61,7 +60,6 @@ static void __end_swap_bio_read(struct bio *bio)
struct page *page = bio_first_page_all(bio);
if (bio->bi_status) {
- SetPageError(page);
pr_alert_ratelimited("Read-error on swap-device (%u:%u:%llu)\n",
MAJOR(bio_dev(bio)), MINOR(bio_dev(bio)),
(unsigned long long)bio->bi_iter.bi_sector);
@@ -415,7 +413,6 @@ static void sio_read_complete(struct kiocb *iocb, long ret)
for (p = 0; p < sio->pages; p++) {
struct page *page = sio->bvec[p].bv_page;
- SetPageError(page);
unlock_page(page);
}
pr_alert_ratelimited("Read-error on swap-device\n");
--
2.25.1
next prev parent reply other threads:[~2023-07-19 9:59 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-19 9:58 [PATCH v2 0/9] Convert several functions in page_io.c to use a folio Peng Zhang
2023-07-19 9:58 ` [PATCH v2 1/9] mm/page_io: remove unneeded ClearPageUptodate() Peng Zhang
2023-07-19 9:58 ` Peng Zhang [this message]
2023-07-19 9:58 ` [PATCH v2 3/9] mm/page_io: convert bio_first_page_all() to bio_first_folio_all() Peng Zhang
2023-07-19 14:17 ` Matthew Wilcox
2023-07-20 5:34 ` Christoph Hellwig
2023-07-20 9:31 ` zhangpeng (AS)
2023-07-19 9:58 ` [PATCH v2 4/9] mm/page_io: use a folio in __end_swap_bio_read() Peng Zhang
2023-07-19 9:58 ` [PATCH v2 5/9] mm/page_io: use a folio in sio_read_complete() Peng Zhang
2023-07-19 9:58 ` [PATCH v2 6/9] mm/page_io: use a folio in swap_writepage_bdev_sync() Peng Zhang
2023-07-19 9:58 ` [PATCH v2 7/9] mm/page_io: use a folio in swap_writepage_bdev_async() Peng Zhang
2023-07-19 9:58 ` [PATCH v2 8/9] mm/page_io: convert count_swpout_vm_event() to take in a folio Peng Zhang
2023-07-19 14:24 ` Matthew Wilcox
2023-07-20 9:31 ` zhangpeng (AS)
2023-07-19 9:58 ` [PATCH v2 9/9] mm/page_io: convert bio_associate_blkg_from_page() " Peng Zhang
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