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virtiofs: Add mount option and atime behavior to the doc
Add a section to show the mount option and a subsection to show the atime behavior. Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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@ -39,6 +39,20 @@ Mount file system with tag ``myfs`` on ``/mnt``:
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Please see https://virtio-fs.gitlab.io/ for details on how to configure QEMU
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Please see https://virtio-fs.gitlab.io/ for details on how to configure QEMU
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and the virtiofsd daemon.
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and the virtiofsd daemon.
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Mount options
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-------------
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virtiofs supports general VFS mount options, for example, remount,
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ro, rw, context, etc. It also supports FUSE mount options.
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atime behavior
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^^^^^^^^^^^^^^
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The atime-related mount options, for example, noatime, strictatime,
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are ignored. The atime behavior for virtiofs is the same as the
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underlying filesystem of the directory that has been exported
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on the host.
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Internals
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Internals
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=========
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=========
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Since the virtio-fs device uses the FUSE protocol for file system requests, the
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Since the virtio-fs device uses the FUSE protocol for file system requests, the
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