diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2016-03-04 14:28:01 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2016-03-30 12:16:02 +0200 |
| commit | bfd18d1e0b06608226fcef1982c3a439c49c3366 (patch) | |
| tree | 86f43754a9f11d01c5521dee96f51660cd440bda /tests | |
| parent | 855a6a93a12b60b2799eb5999baabd7a85a37c99 (diff) | |
| download | qemu-bfd18d1e0b06608226fcef1982c3a439c49c3366.tar.gz | |
block: Move enable_write_cache to BB level
Whether a write cache is used or not is a decision that concerns the
user (e.g. the guest device) rather than the backend. It was already
logically part of the BB level as bdrv_move_feature_fields() always kept
it on top of the BDS tree; with this patch, the core of it (the actual
flag and the additional flushes) is also implemented there.
Direct callers of bdrv_open() must pass BDRV_O_CACHE_WB now if bs
doesn't have a BlockBackend attached.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'tests')
| -rwxr-xr-x | tests/qemu-iotests/142 | 4 | ||||
| -rw-r--r-- | tests/qemu-iotests/142.out | 8 |
2 files changed, 6 insertions, 6 deletions
diff --git a/tests/qemu-iotests/142 b/tests/qemu-iotests/142 index 80834b5d8f..517fb306c8 100755 --- a/tests/qemu-iotests/142 +++ b/tests/qemu-iotests/142 @@ -338,8 +338,8 @@ echo # TODO Implement node-name support for 'qemu-io' HMP command for -c # Can use only -o to access child node options for now -hmp_cmds="qemu-io none0 \"reopen -o file.cache.writeback=off,file.cache.direct=off,file.cache.no-flush=off\" -qemu-io none0 \"reopen -o backing.file.cache.writeback=on,backing.file.cache.direct=off,backing.file.cache.no-flush=on\" +hmp_cmds="qemu-io none0 \"reopen -o file.cache.direct=off,file.cache.no-flush=off\" +qemu-io none0 \"reopen -o backing.file.cache.direct=off,backing.file.cache.no-flush=on\" qemu-io none0 \"reopen -c none\" info block image info block file diff --git a/tests/qemu-iotests/142.out b/tests/qemu-iotests/142.out index 5dd5bd0cd4..32dc802a18 100644 --- a/tests/qemu-iotests/142.out +++ b/tests/qemu-iotests/142.out @@ -132,7 +132,7 @@ cache.direct=on on backing-file cache.writeback=off on none0 Cache mode: writethrough - Cache mode: writethrough + Cache mode: writeback Cache mode: writeback Cache mode: writeback Cache mode: writeback @@ -342,7 +342,7 @@ cache.direct=on on backing-file cache.writeback=off on none0 Cache mode: writeback, direct - Cache mode: writethrough + Cache mode: writeback Cache mode: writeback Cache mode: writeback Cache mode: writeback @@ -503,7 +503,7 @@ cache.direct=on on backing-file cache.writeback=off on blk Cache mode: writethrough - Cache mode: writethrough + Cache mode: writeback Cache mode: writeback Cache mode: writeback Cache mode: writeback @@ -707,7 +707,7 @@ cache.no-flush=on on backing-file --- Change cache mode after reopening child --- Cache mode: writeback, direct - Cache mode: writethrough + Cache mode: writeback Cache mode: writeback, direct Cache mode: writeback, ignore flushes *** done |