| Submitter | Jeff Cody |
|---|---|
| Date | Sept. 20, 2012, 7:13 p.m. |
| Message ID | <83d32be6a2bbecce4e3ebf156498f92021e2f5b1.1348157913.git.jcody@redhat.com> |
| Download | mbox | patch |
| Permalink | /patch/185443/ |
| State | New |
| Headers | show |
Comments
Patch
diff --git a/block.c b/block.c index 4c0e7f5..458bcc9 100644 --- a/block.c +++ b/block.c @@ -2168,6 +2168,13 @@ int bdrv_enable_write_cache(BlockDriverState *bs) void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce) { bs->enable_write_cache = wce; + + /* so a reopen() will preserve wce */ + if (wce) { + bs->open_flags |= BDRV_O_CACHE_WB; + } else { + bs->open_flags &= ~BDRV_O_CACHE_WB; + } } int bdrv_is_encrypted(BlockDriverState *bs)
bdrv_set_enable_write_cache() sets the bs->enable_write_cache flag, but without the flag recorded in bs->open_flags, then next time a reopen() is performed the enable_write_cache setting may be inadvertently lost. This will set the flag in open_flags, so it is preserved across reopens. Signed-off-by: Jeff Cody <jcody@redhat.com> --- block.c | 7 +++++++ 1 file changed, 7 insertions(+)