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H A Dblock.cdiff 55b110f24ec765a09cfb7f4c013fcd90dd807628 Thu Sep 20 14:13:18 CDT 2012 Jeff Cody <jcody@redhat.com> block: make bdrv_set_enable_write_cache() modify open_flags

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>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>