From 7648cdfe52daf0ca4fa9489879dea9e089b0dfe1 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 17 Dec 2010 23:58:41 +0100 Subject: [PATCH] drbd: be less noisy with some log messages We expect changes to a bitmap page in drbd_bm_write_page, that's why we submit a copy page. If a page changes during global writeout, that would be unexpected, and reason to warn, though. Also, often page writeout can be skipped (on activity log transactions during normal operation, for example), no need to log that everytime. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_bitmap.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 423dede45844..314a3632303b 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -920,8 +920,9 @@ static void bm_async_io_complete(struct bio *bio, int error) if (!error && !uptodate) error = -EIO; - if (!bm_test_page_unchanged(b->bm_pages[idx])) - dev_info(DEV, "bitmap page idx %u changed during IO!\n", idx); + if ((ctx->flags & BM_AIO_COPY_PAGES) == 0 && + !bm_test_page_unchanged(b->bm_pages[idx])) + dev_warn(DEV, "bitmap page idx %u changed during IO!\n", idx); if (error) { /* ctx error will hold the completed-last non-zero error code, @@ -1135,7 +1136,7 @@ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(loc struct bm_aio_ctx ctx = { .flags = BM_AIO_COPY_PAGES, }; if (bm_test_page_unchanged(mdev->bitmap->bm_pages[idx])) { - dev_info(DEV, "skipped bm page write for idx %u\n", idx); + dynamic_dev_dbg(DEV, "skipped bm page write for idx %u\n", idx); return 0; }