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authorJohn Snow <jsnow@redhat.com>2019-07-29 16:35:55 -0400
committerJohn Snow <jsnow@redhat.com>2019-08-16 18:29:43 -0400
commit1a2b8b406bea1108c990b6fc932bef63211de245 (patch)
tree2a0b4bee023b25558b457297116890a26e179de8 /COPYING.LIB
parent7e30dd618ebfe3ab1ed54f2e98ba75d799c0be20 (diff)
block/backup: support bitmap sync modes for non-bitmap backups
Accept bitmaps and sync policies for the other backup modes. This allows us to do things like create a bitmap synced to a full backup without a transaction, or start a resumable backup process. Some combinations don't make sense, though: - NEVER policy combined with any non-BITMAP mode doesn't do anything, because the bitmap isn't used for input or output. It's harmless, but is almost certainly never what the user wanted. - sync=NONE is more questionable. It can't use on-success because this job never completes with success anyway, and the resulting artifact of 'always' is suspect: because we start with a full bitmap and only copy out segments that get written to, the final output bitmap will always be ... a fully set bitmap. Maybe there's contexts in which bitmaps make sense for sync=none, but not without more severe changes to the current job, and omitting it here doesn't prevent us from adding it later. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: 20190716000117.25219-11-jsnow@redhat.com Signed-off-by: John Snow <jsnow@redhat.com>
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