From 41b6e41fc609753a9386d24295f7ed03b28c4601 Mon Sep 17 00:00:00 2001 From: Maxim Patlasov Date: Wed, 2 Oct 2013 21:38:43 +0400 Subject: fuse: writepages: update bdi writeout when deleting secondary request BDI_WRITTEN counter is used to estimate bdi bandwidth. It must be incremented every time as bdi ends page writeback. No matter whether it was fulfilled by actual write or by discarding the request (e.g. due to shrunk i_size). Note that even before writepages patches, the case "Got truncated off completely" was handled in fuse_send_writepage() by calling fuse_writepage_finish() which updated BDI_WRITTEN unconditionally. Signed-off-by: Maxim Patlasov Signed-off-by: Miklos Szeredi --- fs/fuse/file.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'fs/fuse') diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 1cb303e..e6fdd59 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1701,11 +1701,14 @@ static bool fuse_writepage_in_flight(struct fuse_req *new_req, if (old_req->num_pages == 1 && (old_req->state == FUSE_REQ_INIT || old_req->state == FUSE_REQ_PENDING)) { + struct backing_dev_info *bdi = page->mapping->backing_dev_info; + copy_highpage(old_req->pages[0], page); spin_unlock(&fc->lock); - dec_bdi_stat(page->mapping->backing_dev_info, BDI_WRITEBACK); + dec_bdi_stat(bdi, BDI_WRITEBACK); dec_zone_page_state(page, NR_WRITEBACK_TEMP); + bdi_writeout_inc(bdi); fuse_writepage_free(fc, new_req); fuse_request_free(new_req); goto out; -- cgit v1.1