[Linux-cachefs] [PATCH 7/7] Cifs: Uncaching no-data page in readpage()

[Li Wang]

Currently, if one page allocated into fscache in readpage(), however, with
no-data read, it is not uncached. This patch fixes this.

Signed-off-by: Li Wang <liwang at ubuntukylin.com>
---
 fs/cifs/file.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7ddddf2..153bc58 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3406,8 +3406,10 @@ static int cifs_readpage_worker(struct file *file, struct page *page,
 
 	rc = cifs_read(file, read_data, PAGE_CACHE_SIZE, poffset);
 
-	if (rc < 0)
+	if (rc < 0) {
+		cifs_fscache_readpage_cancel(file_inode(file), page);
 		goto io_error;
+	}
 	else
 		cifs_dbg(FYI, "Bytes read %d\n", rc);
 
-- 
1.7.9.5