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The marquee feature for this release is that the limit on the maximum rsize and wsize has been raised to 4MB. The default remains at 1MB, but risk-seeking administrators now have the ability to try larger I/O sizes with NFS clients that support them. Eventually the default setting will be increased when we have confidence that this change will not have negative impact. With v6.16, NFSD now has its own debugfs file system where we can add experimental features and make them available outside of our development community without impacting production deployments. The first experimental setting added is one that makes all NFS READ operations use vfs_iter_read() instead of the NFSD splice actor. The plan is to eventually retire the splice actor, as that will enable a number of new capabilities such as the use of struct bio_vec from the top to the bottom of the NFSD stack. Jeff Layton contributed a number of observability improvements. The use of dprintk() in a number of high-traffic code paths has been replaced with static trace points. This release sees the continuation of efforts to harden the NFSv4.2 COPY operation. Soon, the restriction on async COPY operations can be lifted. Many thanks to the contributors, reviewers, testers, and bug reporters who participated during the v6.16 development cycle. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmg1yGUACgkQM2qzM29m f5frMA//TJTbSWiM7qBX1GhVMNr1lxQcjU4BPKo0qZfEtwV06F2BB9mWgDU+BIQh AcGfMZUmNWAnhOTOYvwqyW6dnX+1yt8sBsCZ/1ctY30A4JH4AgG5sdZS7BUrlEEr bGDMUCaPnvQ3maeDjMlefe7Xv/rUhj9TVhXmDkt4vf/jCde2JODTB/z8n7WeAxYJ eOvmr/n5z6VI5Q67M7b5/xqofBEaEoq9P5UEgn61ThfeR0bMlrklm/avDCbbNIH8 6n7Z3tjzllK1CAjEmwHalq4LRbMX5FHWzNkyJw+wtviXS18J5vCAvRe+JDoykusu L2bgXT8bBUqy46eO4WKEOJtEqVQhIsRFx/8ku1iTLrpDWlwrR4mHVyObEDkkdlMX EyBQ4svg2OxCXSyy5O8oggzU0TWVJStIjbIEHbJYusWLU7HxxFveBwqwzYHXLtip WKm6N2ANqQi1du+Pc6xmgXo9svA5Vk+DQjljm1Y5up9dhi2K9cvCIHjwFsZ+E0VL XqXJ2YgIQb3oXK7FttzLOiDrpX1OX82sTIbgdcPcfT7lP+ej7uiHMBPmdPwgaZIU EbIp0ThoTkh8/VRMDcWIt+B6SEhmb5vY3Zgz9Lcf2J0PM1fuYJ67L7xGTviFX7Ci DpohiCgceb6PHYeIuarayF86tPJGF8Vb7XvQZej2Ybv8QdxLFg8= =FbeG -----END PGP SIGNATURE----- Merge tag 'nfsd-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "The marquee feature for this release is that the limit on the maximum rsize and wsize has been raised to 4MB. The default remains at 1MB, but risk-seeking administrators now have the ability to try larger I/O sizes with NFS clients that support them. Eventually the default setting will be increased when we have confidence that this change will not have negative impact. With v6.16, NFSD now has its own debugfs file system where we can add experimental features and make them available outside of our development community without impacting production deployments. The first experimental setting added is one that makes all NFS READ operations use vfs_iter_read() instead of the NFSD splice actor. The plan is to eventually retire the splice actor, as that will enable a number of new capabilities such as the use of struct bio_vec from the top to the bottom of the NFSD stack. Jeff Layton contributed a number of observability improvements. The use of dprintk() in a number of high-traffic code paths has been replaced with static trace points. This release sees the continuation of efforts to harden the NFSv4.2 COPY operation. Soon, the restriction on async COPY operations can be lifted. Many thanks to the contributors, reviewers, testers, and bug reporters who participated during the v6.16 development cycle" * tag 'nfsd-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (60 commits) xdrgen: Fix code generated for counted arrays SUNRPC: Bump the maximum payload size for the server NFSD: Add a "default" block size NFSD: Remove NFSSVC_MAXBLKSIZE_V2 macro NFSD: Remove NFSD_BUFSIZE sunrpc: Remove the RPCSVC_MAXPAGES macro svcrdma: Adjust the number of entries in svc_rdma_send_ctxt::sc_pages svcrdma: Adjust the number of entries in svc_rdma_recv_ctxt::rc_pages sunrpc: Adjust size of socket's receive page array dynamically SUNRPC: Remove svc_rqst :: rq_vec SUNRPC: Remove svc_fill_write_vector() NFSD: Use rqstp->rq_bvec in nfsd_iter_write() SUNRPC: Export xdr_buf_to_bvec() NFSD: De-duplicate the svc_fill_write_vector() call sites NFSD: Use rqstp->rq_bvec in nfsd_iter_read() sunrpc: Replace the rq_bvec array with dynamically-allocated memory sunrpc: Replace the rq_pages array with dynamically-allocated memory sunrpc: Remove backchannel check in svc_init_buffer() sunrpc: Add a helper to derive maxpages from sv_max_mesg svcrdma: Reduce the number of rdma_rw contexts per-QP ... |
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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 | ||
| .pylintrc | ||
| .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.