diff mbox series

[v2,11/16] jffs2: Tell the VFS that readpage was synchronous

Message ID 20201009143104.22673-12-willy@infradead.org (mailing list archive)
State New, archived
Headers show
Series Allow readpage to return a locked page | expand

Commit Message

Matthew Wilcox Oct. 9, 2020, 2:30 p.m. UTC 
The jffs2 readpage implementation was already synchronous, so use
AOP_UPDATED_PAGE to avoid cycling the page lock.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Richard Weinberger <richard@nod.at>
---
 fs/jffs2/file.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index f8fb89b10227..959a74027041 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -116,15 +116,17 @@  int jffs2_do_readpage_unlock(void *data, struct page *pg)
 	return ret;
 }
 
-
 static int jffs2_readpage (struct file *filp, struct page *pg)
 {
 	struct jffs2_inode_info *f = JFFS2_INODE_INFO(pg->mapping->host);
 	int ret;
 
 	mutex_lock(&f->sem);
-	ret = jffs2_do_readpage_unlock(pg->mapping->host, pg);
+	ret = jffs2_do_readpage_nolock(pg->mapping->host, pg);
 	mutex_unlock(&f->sem);
+	if (!ret)
+		return AOP_UPDATED_PAGE;
+	unlock_page(pg);
 	return ret;
 }