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| author | Federico Simoncelli | 2011-06-20 18:48:19 +0200 |
|---|---|---|
| committer | Kevin Wolf | 2011-07-05 11:23:29 +0200 |
| commit | 661a0f712b7c5b78408d85ba8b7f47ce44f395c0 (patch) | |
| tree | 8c03df5b089035ff4dc1513db25ddd30ec27d344 /qemu-img-cmds.hx | |
| parent | Documentation: Remove outdated host_device note (diff) | |
| download | qemu-661a0f712b7c5b78408d85ba8b7f47ce44f395c0.tar.gz qemu-661a0f712b7c5b78408d85ba8b7f47ce44f395c0.tar.xz qemu-661a0f712b7c5b78408d85ba8b7f47ce44f395c0.zip | |
qemu-img: Add cache command line option
qemu-img currently writes disk images using writeback and filling
up the cache buffers which are then flushed by the kernel preventing
other processes from accessing the storage.
This is particularly bad in cluster environments where time-based
algorithms might be in place and accessing the storage within
certain timeouts is critical.
This patch adds the option to choose a cache method when writing
disk images.
Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-img-cmds.hx')
| -rw-r--r-- | qemu-img-cmds.hx | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx index 3072d383cf..2b70618c70 100644 --- a/qemu-img-cmds.hx +++ b/qemu-img-cmds.hx @@ -22,13 +22,13 @@ STEXI ETEXI DEF("commit", img_commit, - "commit [-f fmt] filename") + "commit [-f fmt] [-t cache] filename") STEXI @item commit [-f @var{fmt}] @var{filename} ETEXI DEF("convert", img_convert, - "convert [-c] [-p] [-f fmt] [-O output_fmt] [-o options] [-s snapshot_name] filename [filename2 [...]] output_filename") + "convert [-c] [-p] [-f fmt] [-t cache] [-O output_fmt] [-o options] [-s snapshot_name] filename [filename2 [...]] output_filename") STEXI @item convert [-c] [-f @var{fmt}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_name}] @var{filename} [@var{filename2} [...]] @var{output_filename} ETEXI @@ -46,7 +46,7 @@ STEXI ETEXI DEF("rebase", img_rebase, - "rebase [-f fmt] [-p] [-u] -b backing_file [-F backing_fmt] filename") + "rebase [-f fmt] [-t cache] [-p] [-u] -b backing_file [-F backing_fmt] filename") STEXI @item rebase [-f @var{fmt}] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename} ETEXI |