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From: Sidhartha Kumar <sidhartha.kumar@oracle.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc: akpm@linux-foundation.org, willy@infradead.org,
	Sidhartha Kumar <sidhartha.kumar@oracle.com>
Subject: [PATCH 4/4] mm/memory: convert do_read_fault() to use folios
Date: Sun,  2 Jul 2023 22:58:50 -0700	[thread overview]
Message-ID: <20230703055850.227169-4-sidhartha.kumar@oracle.com> (raw)
In-Reply-To: <20230703055850.227169-1-sidhartha.kumar@oracle.com>

Saves one implicit call to compound_head()

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
---
 mm/memory.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 33bf13431974c..b97c66df4adac 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4528,6 +4528,7 @@ static inline bool should_fault_around(struct vm_fault *vmf)
 static vm_fault_t do_read_fault(struct vm_fault *vmf)
 {
 	vm_fault_t ret = 0;
+	struct folio *folio = page_folio(vmf->page);
 
 	/*
 	 * Let's call ->map_pages() first and use ->fault() as fallback
@@ -4545,9 +4546,9 @@ static vm_fault_t do_read_fault(struct vm_fault *vmf)
 		return ret;
 
 	ret |= finish_fault(vmf);
-	unlock_page(vmf->page);
+	folio_unlock(folio);
 	if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE | VM_FAULT_RETRY)))
-		put_page(vmf->page);
+		folio_put(folio);
 	return ret;
 }
 
-- 
2.41.0


  parent reply	other threads:[~2023-07-03  5:59 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-03  5:58 [PATCH 1/4] mm/memory: convert do_page_mkwrite() to use folios Sidhartha Kumar
2023-07-03  5:58 ` [PATCH 2/4] mm/memory: convert wp_page_shared() " Sidhartha Kumar
2023-07-03  9:29   ` zhangpeng (AS)
2023-07-03 23:29   ` Matthew Wilcox
2023-07-03  5:58 ` [PATCH 3/4] mm/memory: convert do_shared_fault() to folios Sidhartha Kumar
2023-07-03  9:29   ` zhangpeng (AS)
2023-07-03 22:05   ` SeongJae Park
2023-07-04  2:25     ` Sidhartha Kumar
2023-07-03 23:31   ` Matthew Wilcox
2023-07-04  2:18     ` Sidhartha Kumar
2023-07-03  5:58 ` Sidhartha Kumar [this message]
2023-07-03  9:29   ` [PATCH 4/4] mm/memory: convert do_read_fault() to use folios zhangpeng (AS)
2023-07-03 23:32   ` Matthew Wilcox
2023-07-03  9:29 ` [PATCH 1/4] mm/memory: convert do_page_mkwrite() " zhangpeng (AS)
2023-07-03 23:25 ` Matthew Wilcox
2023-07-04 19:35 ` Matthew Wilcox

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