Matthew Wilcox (Oracle) 8f599ab6fa ubifs: Set page uptodate in the correct place
[ Upstream commit 723012cab779eee8228376754e22c6594229bf8f ]

Page cache reads are lockless, so setting the freshly allocated page
uptodate before we've overwritten it with the data it's supposed to have
in it will allow a simultaneous reader to see old data.  Move the call
to SetPageUptodate into ubifs_write_end(), which is after we copied the
new data into the page.

Fixes: 1e51764a3c2a ("UBIFS: add new flash file system")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-13 12:58:09 +02:00
..
2021-09-18 13:40:15 +02:00
2024-02-23 08:42:14 +01:00
2023-09-19 12:20:23 +02:00
2024-03-01 13:16:43 +01:00
2023-09-23 11:01:09 +02:00
2022-06-09 10:21:16 +02:00
2023-12-08 08:46:15 +01:00
2023-01-04 11:39:23 +01:00
2023-01-14 10:16:27 +01:00