linux-kernel - [PATCH 06/12] shmem: set folio uptodate when reclaim

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Message-ID: <20240515055719.32577-7-da.gomez@samsung.com>
Date: Wed, 15 May 2024 05:57:29 +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>,
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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"
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	<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 06/12] shmem: set folio uptodate when reclaim

When reclaiming some space by splitting a large folio through
shmem_unused_huge_shrink(), a large folio is split regardless of its
uptodate status. Mark all the blocks as uptodate in the reclaim path so
split_folio() can release the folio private struct (shmem_folio_state).

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

diff --git a/mm/shmem.c b/mm/shmem.c
index 04992010225f..68fe769d91b1 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -842,6 +842,7 @@ static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo,
 			goto move_back;
 		}
 
+		shmem_set_range_uptodate(folio, 0, folio_size(folio));
 		ret = split_folio(folio);
 		folio_unlock(folio);
 		folio_put(folio);
-- 
2.43.0