3.16.66-rc1 review patch. If anyone has any objections, please let me know.
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From: Miklos Szeredi mszeredi@redhat.com
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") Signed-off-by: Miklos Szeredi mszeredi@redhat.com [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings ben@decadent.org.uk --- fs/fuse/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1846,7 +1846,7 @@ static bool fuse_writepage_in_flight(str spin_unlock(&fc->lock);
dec_bdi_stat(bdi, BDI_WRITEBACK); - dec_zone_page_state(page, NR_WRITEBACK_TEMP); + dec_zone_page_state(new_req->pages[0], NR_WRITEBACK_TEMP); bdi_writeout_inc(bdi); fuse_writepage_free(fc, new_req); fuse_request_free(new_req);