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authorFederico Simoncelli <fsimonce@redhat.com>2011-06-20 12:48:19 -0400
committerKevin Wolf <kwolf@redhat.com>2011-07-05 11:23:29 +0200
commit661a0f712b7c5b78408d85ba8b7f47ce44f395c0 (patch)
tree8c03df5b089035ff4dc1513db25ddd30ec27d344 /qemu-img-cmds.hx
parent02854532c215872b2af5ed48af93b7a309de1b1b (diff)
downloadqemu-arm-661a0f712b7c5b78408d85ba8b7f47ce44f395c0.tar.gz
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.hx6
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