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author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2012-08-09 13:05:54 +0100 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2012-08-10 10:25:12 +0200 |
commit | b10170aca0616df85482dcc7ddda03437bc07cca (patch) | |
tree | dae80501c214a6c94f9bcd26b7751cce1c2e629b /block | |
parent | 1f212b9d3edd8679bafd3bcf0301795206438724 (diff) | |
download | qemu-b10170aca0616df85482dcc7ddda03437bc07cca.zip qemu-b10170aca0616df85482dcc7ddda03437bc07cca.tar.gz qemu-b10170aca0616df85482dcc7ddda03437bc07cca.tar.bz2 |
qed: mark image clean after repair succeeds
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 <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
-rw-r--r-- | block/qed-check.c | 26 | ||||
-rw-r--r-- | block/qed.c | 9 | ||||
-rw-r--r-- | 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); |