linux-kernel - [PATCH 09/12] shmem: enable per-block uptodate

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Date: Wed, 15 May 2024 05:57:33 +0000
From: Daniel Gomez <da.gomez@...sung.com>
To: "hughd@...gle.com" <hughd@...gle.com>, "akpm@...ux-foundation.org"
	<akpm@...ux-foundation.org>, "willy@...radead.org" <willy@...radead.org>,
	"jack@...e.cz" <jack@...e.cz>, "mcgrof@...nel.org" <mcgrof@...nel.org>
CC: "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-xfs@...r.kernel.org"
	<linux-xfs@...r.kernel.org>, "djwong@...nel.org" <djwong@...nel.org>,
	"Pankaj Raghav" <p.raghav@...sung.com>, "dagmcr@...il.com"
	<dagmcr@...il.com>, "yosryahmed@...gle.com" <yosryahmed@...gle.com>,
	"baolin.wang@...ux.alibaba.com" <baolin.wang@...ux.alibaba.com>,
	"ritesh.list@...il.com" <ritesh.list@...il.com>,
	"lsf-pc@...ts.linux-foundation.org" <lsf-pc@...ts.linux-foundation.org>,
	"david@...hat.com" <david@...hat.com>, "chandan.babu@...cle.com"
	<chandan.babu@...cle.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "brauner@...nel.org" <brauner@...nel.org>,
	Daniel Gomez <da.gomez@...sung.com>
Subject: [PATCH 09/12] shmem: enable per-block uptodate

In the write_end() function, mark only the blocks that are being written
as uptodate.

Signed-off-by: Daniel Gomez <da.gomez@...sung.com>
---
 mm/shmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index d5e6c8eba983..7a6ad678e2ff 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2991,7 +2991,7 @@ shmem_write_end(struct file *file, struct address_space *mapping,
 	if (pos + copied > inode->i_size)
 		i_size_write(inode, pos + copied);
 
-	shmem_set_range_uptodate(folio, 0, folio_size(folio));
+	shmem_set_range_uptodate(folio, offset_in_folio(folio, pos), len);
 	folio_mark_dirty(folio);
 	folio_unlock(folio);
 	folio_put(folio);
-- 
2.43.0