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First off, the intention of this pull is to declare that I'll be the binfmt_misc maintainer (mainly on the grounds of you touched it last, it's yours). There's no MAINTAINERS entry, but get_maintainers.pl will now finger me. The update itself is to allow architecture emulation containers to function such that the emulation binary can be housed outside the container itself. The container and fs parts both have acks from relevant experts. The change is user visible. To use the new feature you have to add an F option to your binfmt_misc configuration. However, the existing tools, like systemd-binfmt work with this without modification. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABAgAGBQJXmW5WAAoJEAVr7HOZEZN4K1QQAKgx5MPkoTU3QKKgzaMBBnWH pSMdoN8BhVSwENE/YJGMEyLaRa0zmrHVtFcnH2CHQE/GoXNnaej9l3LtBIwJ9K2P nrv4Rlhla5BxjhDkg8IWf3iG7iKDDHGZoyuVPx4dwxHFK1yCNH4SDeHaJCKK5qsC aLltMJMRnjsgJvBUC01dCUlp8srkWywHcyk9M9ic/Fr5vJ6JzdUr6/Md29eHmAXe NgCGwkVgSDiKfnTGZjIMsAtpwPsJ6RqBWQTcTdM/mkIpqwrMiVuaVOHqu2cmMU2i j4cQE6rQpy3sedDKZbHBQMOfYJNT4QYgYGuvyIWce9EPkIpOWHzQ7kYPJ/A/jZCE lN37TeyodbUDCnyuKk1YOrTBjJ0qdtc4FXJ1aq5s92GkgDs+LtxMdGzKDf3yUGiU W0TsE/wVy4rmEaeiyut33661ud4vivP4WklWK1Y+bklQcIcKQKKWnOCnDFDR5vuz CbL5ykVcJb3F28YhGYHvGLeXl0YcR3SwngWnnPCDPtBCeSirohuKb1SEe21C/RaB rm9S27d+LcKCXJyCqKh8BGsqroZ0iSZQI0Lbdqt+BCuuBw2rQhGStDeccDDUp9jg MOwpQwabjEseK0n75+hZ2SFS5Q+TQ6pccMlUJIDiBKWmRly8NpKlSKKWvBX8obIe 0Gq6hgX1IwQnXI1O8QMC =6OjN -----END PGP SIGNATURE----- Merge tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc Pull binfmt_misc update from James Bottomley: "This update is to allow architecture emulation containers to function such that the emulation binary can be housed outside the container itself. The container and fs parts both have acks from relevant experts. To use the new feature you have to add an F option to your binfmt_misc configuration" From the docs: "The usual behaviour of binfmt_misc is to spawn the binary lazily when the misc format file is invoked. However, this doesn't work very well in the face of mount namespaces and changeroots, so the F mode opens the binary as soon as the emulation is installed and uses the opened image to spawn the emulator, meaning it is always available once installed, regardless of how the environment changes" * tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc: binfmt_misc: add F option description to documentation binfmt_misc: add persistent opened binary handler for containers fs: add filp_clone_open API