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Date:   Mon, 18 Feb 2019 14:43:34 +0100
From:   Greg Kroah-Hartman <>
Cc:     Greg Kroah-Hartman <>,, Miklos Szeredi <>
Subject: [PATCH 4.4 086/143] fuse: decrement NR_WRITEBACK_TEMP on the right page

4.4-stable review patch.  If anyone has any objections, please let me know.


From: Miklos Szeredi <>

commit a2ebba824106dabe79937a9f29a875f837e1b6d4 upstream.

NR_WRITEBACK_TEMP is accounted on the temporary page in the request, not
the page cache page.

Fixes: 8b284dc47291 ("fuse: writepages: handle same page rewrites")
Cc: <> # v3.13
Signed-off-by: Miklos Szeredi <>
Signed-off-by: Greg Kroah-Hartman <>

 fs/fuse/file.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1784,7 +1784,7 @@ static bool fuse_writepage_in_flight(str
 		dec_wb_stat(&bdi->wb, WB_WRITEBACK);
-		dec_zone_page_state(page, NR_WRITEBACK_TEMP);
+		dec_zone_page_state(new_req->pages[0], NR_WRITEBACK_TEMP);
 		fuse_writepage_free(fc, new_req);

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