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Currently vsock's lingering effectively boils down to waiting (or timing out) until packets are consumed or dropped by the peer; be it by receiving the data, closing or shutting down the connection. To align with the semantics described in the SO_LINGER section of man socket(7) and to mimic AF_INET's behaviour more closely, change the logic of a lingering close(): instead of waiting for all data to be handled, block until data is considered sent from the vsock's transport point of view. That is until worker picks the packets for processing and decrements virtio_vsock_sock::bytes_unsent down to 0. Note that (some interpretation of) lingering was always limited to transports that called virtio_transport_wait_close() on transport release. This does not change, i.e. under Hyper-V and VMCI no lingering would be observed. The implementation does not adhere strictly to man page's interpretation of SO_LINGER: shutdown() will not trigger the lingering. This follows AF_INET. Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Michal Luczaj <mhal@rbox.co> Link: https://patch.msgid.link/20250522-vsock-linger-v6-1-2ad00b0e447e@rbox.co Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.