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13c6ad0f45
Some overlayfs optional features are incompatible with offline changes to the lower tree and may result in -EXDEV, -EIO, or other errors. Such modification is not supported and the error behavior is intentionally not specified. Update the "Changes to underlying filesystems" section to note this restriction. Move the paragraph describing the offline behavior below the online behavior so it is adjacent to the following 3 paragraphs describing the NFS export offline modification behavior. Link: https://lore.kernel.org/linux-unionfs/20200708142353.GA103536@redhat.com/ Link: https://lore.kernel.org/linux-unionfs/CAOQ4uxi23Zsmfb4rCed1n=On0NNA5KZD74jjjeyz+et32sk-gg@mail.gmail.com/ Link: https://lore.kernel.org/linux-unionfs/20200817135651.GA637139@redhat.com/ Link: https://lore.kernel.org/linux-unionfs/20200709153616.GE150543@redhat.com/ Link: https://lore.kernel.org/linux-unionfs/20200812135529.GA122370@kevinolos/ Signed-off-by: Kevin Locke <kevin@kevinlocke.name> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
