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qed: mark image clean after repair succeeds

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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>
This commit is contained in:
Stefan Hajnoczi 2012-08-09 13:05:54 +01:00 committed by Kevin Wolf
parent 1f212b9d3e
commit b10170aca0
3 changed files with 32 additions and 8 deletions
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26
block/qed-check.c
View file

@ -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);

9
block/qed.c
View file

@ -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);
}
}
}

5
block/qed.h
View file

@ -210,6 +210,11 @@ typedef struct {
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
*/