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authorPaolo Bonzini <pbonzini@redhat.com>2012-06-06 00:04:55 +0200
committerKevin Wolf <kwolf@redhat.com>2012-06-15 14:03:43 +0200
commit6af4e9ead4ec9491259c9861b1b35f9abee24a66 (patch)
treee73675471adb5001272bbfcbab116da8d8acf829 /block/qcow2.h
parent7cdd481cdf15d610f83e38f15c7e7979420c6ac0 (diff)
qcow2: always operate caches in writeback mode
Writethrough does not need special-casing anymore in the qcow2 caches. The block layer adds flushes after every guest-initiated data write, and these will also flush the qcow2 caches to the OS. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2.h')
-rw-r--r--block/qcow2.h5
1 files changed, 1 insertions, 4 deletions
diff --git a/block/qcow2.h b/block/qcow2.h
index c6e72373d0..455b6d7cfe 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -297,11 +297,8 @@ void qcow2_free_snapshots(BlockDriverState *bs);
int qcow2_read_snapshots(BlockDriverState *bs);
/* qcow2-cache.c functions */
-Qcow2Cache *qcow2_cache_create(BlockDriverState *bs, int num_tables,
- bool writethrough);
+Qcow2Cache *qcow2_cache_create(BlockDriverState *bs, int num_tables);
int qcow2_cache_destroy(BlockDriverState* bs, Qcow2Cache *c);
-bool qcow2_cache_set_writethrough(BlockDriverState *bs, Qcow2Cache *c,
- bool enable);
void qcow2_cache_entry_mark_dirty(Qcow2Cache *c, void *table);
int qcow2_cache_flush(BlockDriverState *bs, Qcow2Cache *c);