a22f123ca3
By default, require 4k of consecutive zero bytes for qemu-img to make the output file sparse by not issuing a write request for the zeroed parts. Add an -S option to allow users to tune this setting. This helps to avoid situations where a lot of zero sectors and data sectors are mixed and qemu-img tended to issue many tiny 512 byte writes. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
60 lines
1.8 KiB
Haxe
60 lines
1.8 KiB
Haxe
HXCOMM Use DEFHEADING() to define headings in both help text and texi
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HXCOMM Text between STEXI and ETEXI are copied to texi version and
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HXCOMM discarded from C version
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HXCOMM DEF(command, callback, arg_string) is used to construct
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HXCOMM command structures and help message.
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HXCOMM HXCOMM can be used for comments, discarded from both texi and C
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STEXI
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@table @option
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ETEXI
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DEF("check", img_check,
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"check [-f fmt] filename")
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STEXI
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@item check [-f @var{fmt}] @var{filename}
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ETEXI
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DEF("create", img_create,
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"create [-f fmt] [-o options] filename [size]")
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STEXI
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@item create [-f @var{fmt}] [-o @var{options}] @var{filename} [@var{size}]
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ETEXI
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DEF("commit", img_commit,
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"commit [-f fmt] [-t cache] filename")
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STEXI
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@item commit [-f @var{fmt}] @var{filename}
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ETEXI
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DEF("convert", img_convert,
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"convert [-c] [-p] [-f fmt] [-t cache] [-O output_fmt] [-o options] [-s snapshot_name] [-S sparse_size] filename [filename2 [...]] output_filename")
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STEXI
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@item convert [-c] [-p] [-f @var{fmt}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_name}] [-S @var{sparse_size}] @var{filename} [@var{filename2} [...]] @var{output_filename}
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ETEXI
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DEF("info", img_info,
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"info [-f fmt] filename")
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STEXI
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@item info [-f @var{fmt}] @var{filename}
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ETEXI
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DEF("snapshot", img_snapshot,
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"snapshot [-l | -a snapshot | -c snapshot | -d snapshot] filename")
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STEXI
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@item snapshot [-l | -a @var{snapshot} | -c @var{snapshot} | -d @var{snapshot}] @var{filename}
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ETEXI
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DEF("rebase", img_rebase,
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"rebase [-f fmt] [-t cache] [-p] [-u] -b backing_file [-F backing_fmt] filename")
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STEXI
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@item rebase [-f @var{fmt}] [-p] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename}
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ETEXI
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DEF("resize", img_resize,
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"resize filename [+ | -]size")
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STEXI
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@item resize @var{filename} [+ | -]@var{size}
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@end table
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ETEXI
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