From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:50516) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SzsNG-0006ed-BP for qemu-devel@nongnu.org; Fri, 10 Aug 2012 12:47:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SzsNF-00085j-2D for qemu-devel@nongnu.org; Fri, 10 Aug 2012 12:47:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34394) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SzsNE-000859-Q0 for qemu-devel@nongnu.org; Fri, 10 Aug 2012 12:47:44 -0400 From: Kevin Wolf Date: Fri, 10 Aug 2012 18:47:26 +0200 Message-Id: <1344617249-6620-9-git-send-email-kwolf@redhat.com> In-Reply-To: <1344617249-6620-1-git-send-email-kwolf@redhat.com> References: <1344617249-6620-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PATCH 08/11] qed: mark image clean after repair succeeds List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: anthony@codemonkey.ws Cc: kwolf@redhat.com, qemu-devel@nongnu.org From: Stefan Hajnoczi The dirty bit is cleared after image repair succeeds in qed_open(). Move this into qed_check() so that all callers benefit from this behavior when fix=true. This is necessary so qemu-img check can call .bdrv_check() and mark the image clean. Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- block/qed-check.c | 26 ++++++++++++++++++++++++++ block/qed.c | 9 +-------- block/qed.h | 5 +++++ 3 files changed, 32 insertions(+), 8 deletions(-) diff --git a/block/qed-check.c b/block/qed-check.c index 5edf607..b473dcd 100644 --- a/block/qed-check.c +++ b/block/qed-check.c @@ -194,6 +194,28 @@ static void qed_check_for_leaks(QEDCheck *check) } } +/** + * Mark an image clean once it passes check or has been repaired + */ +static void qed_check_mark_clean(BDRVQEDState *s, BdrvCheckResult *result) +{ + /* Skip if there were unfixable corruptions or I/O errors */ + if (result->corruptions > 0 || result->check_errors > 0) { + return; + } + + /* Skip if image is already marked clean */ + if (!(s->header.features & QED_F_NEED_CHECK)) { + return; + } + + /* Ensure fixes reach storage before clearing check bit */ + bdrv_flush(s->bs); + + s->header.features &= ~QED_F_NEED_CHECK; + qed_write_header_sync(s); +} + int qed_check(BDRVQEDState *s, BdrvCheckResult *result, bool fix) { QEDCheck check = { @@ -215,6 +237,10 @@ int qed_check(BDRVQEDState *s, BdrvCheckResult *result, bool fix) if (ret == 0) { /* Only check for leaks if entire image was scanned successfully */ qed_check_for_leaks(&check); + + if (fix) { + qed_check_mark_clean(s, result); + } } g_free(check.used_clusters); diff --git a/block/qed.c b/block/qed.c index 5f3eefa..226545d 100644 --- a/block/qed.c +++ b/block/qed.c @@ -89,7 +89,7 @@ static void qed_header_cpu_to_le(const QEDHeader *cpu, QEDHeader *le) le->backing_filename_size = cpu_to_le32(cpu->backing_filename_size); } -static int qed_write_header_sync(BDRVQEDState *s) +int qed_write_header_sync(BDRVQEDState *s) { QEDHeader le; int ret; @@ -491,13 +491,6 @@ static int bdrv_qed_open(BlockDriverState *bs, int flags) if (ret) { goto out; } - if (!result.corruptions && !result.check_errors) { - /* Ensure fixes reach storage before clearing check bit */ - bdrv_flush(s->bs); - - s->header.features &= ~QED_F_NEED_CHECK; - qed_write_header_sync(s); - } } } diff --git a/block/qed.h b/block/qed.h index c716772..a063bf7 100644 --- a/block/qed.h +++ b/block/qed.h @@ -211,6 +211,11 @@ void *gencb_alloc(size_t len, BlockDriverCompletionFunc *cb, void *opaque); void gencb_complete(void *opaque, int ret); /** + * Header functions + */ +int qed_write_header_sync(BDRVQEDState *s); + +/** * L2 cache functions */ void qed_init_l2_cache(L2TableCache *l2_cache); -- 1.7.6.5