diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-10-12 19:11:23 +0530 |
|---|---|---|
| committer | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-10-12 19:11:23 +0530 |
| commit | d3ab98e6919e9491f8ed7ffe37af73d35a55e1ca (patch) | |
| tree | 0e805d6c9a58229dbc51f92b3ff3ee9d430e1c02 /qemu-options.hx | |
| parent | 5745e38afeaa15153c2209674fe37e1cbdd65707 (diff) | |
hw/9pfs: Add new virtfs option writeout=immediate skip host page cache
writeout=immediate implies the after pwritev we do a sync_file_range.
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index dfbabd0088..20fd7b506f 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -525,7 +525,8 @@ ETEXI DEFHEADING(File system options:) DEF("fsdev", HAS_ARG, QEMU_OPTION_fsdev, - "-fsdev local,id=id,path=path,security_model=[mapped|passthrough|none]\n", + "-fsdev local,id=id,path=path,security_model=[mapped|passthrough|none]\n" + " [,writeout=immediate]\n", QEMU_ARCH_ALL) STEXI @@ -541,7 +542,7 @@ The specific Fstype will determine the applicable options. Options to each backend are described below. -@item -fsdev local ,id=@var{id} ,path=@var{path} ,security_model=@var{security_model} +@item -fsdev local ,id=@var{id} ,path=@var{path} ,security_model=@var{security_model}[,writeout=@var{writeout}] Create a file-system-"device" for local-filesystem. @@ -552,13 +553,17 @@ Create a file-system-"device" for local-filesystem. @option{security_model} specifies the security model to be followed. @option{security_model} is required. +@option{writeout} specifies whether to skip the host page cache. +@option{writeout} is an optional argument. + @end table ETEXI DEFHEADING(Virtual File system pass-through options:) DEF("virtfs", HAS_ARG, QEMU_OPTION_virtfs, - "-virtfs local,path=path,mount_tag=tag,security_model=[mapped|passthrough|none]\n", + "-virtfs local,path=path,mount_tag=tag,security_model=[mapped|passthrough|none]\n" + " [,writeout=immediate]\n", QEMU_ARCH_ALL) STEXI @@ -574,7 +579,7 @@ The specific Fstype will determine the applicable options. Options to each backend are described below. -@item -virtfs local ,path=@var{path} ,mount_tag=@var{mount_tag} ,security_model=@var{security_model} +@item -virtfs local ,path=@var{path} ,mount_tag=@var{mount_tag} ,security_model=@var{security_model}[,writeout=@var{writeout}] Create a Virtual file-system-pass through for local-filesystem. @@ -585,10 +590,12 @@ Create a Virtual file-system-pass through for local-filesystem. @option{security_model} specifies the security model to be followed. @option{security_model} is required. - @option{mount_tag} specifies the tag with which the exported file is mounted. @option{mount_tag} is required. +@option{writeout} specifies whether to skip the host page cache. +@option{writeout} is an optional argument. + @end table ETEXI |