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ce3f5bb750
NFSD is finally able to offer write delegations to clients that open files with O_WRONLY, thanks to patches from Dai Ngo. We're expecting this to accelerate a few interesting corner cases. The cap on the number of operations per NFSv4 COMPOUND has been lifted. Now, clients that send COMPOUNDs containing dozens of operations (for example, a long stream of LOOKUP operations to walk a pathname in a single round trip) will no longer be rejected. This release re-enables the ability for NFSD to perform NFSv4.2 COPY operations asynchronously. This feature has been disabled to mitigate the risk of denial-of-service when too many such requests arrive. Many thanks to the contributors, reviewers, testers, and bug reporters who participated during the v6.17 development cycle. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmiFJAcACgkQM2qzM29m f5fOvA/+I1W3iAXMeuS4MdBD+20976XZNazXKXXfJE9ay/0I7rXka0uD9HH+cTnU 3wY1p+jjTs+Tatc5A39MjuS9a6o23FnHZB7IOimL+9ASRjBgjXisOyb7yEnfcA4s 9NjM5sMHskmrNpLX5kDPNHzTMdaozGl/uSDKg5WSAU/NMrtAT9c9snx4bO5A6mdk 48XPkP5++aBKGehsPqI0WGOeSzGKI7dc/kJS9F8kIbBCAMJSbIY7PKly+y+fbJkk eMapUX257DCRQejA6hnFff0/x1NnR2tC8lQAZE1c7P5D9CV+1UEAQWK4/OOD2aeQ hY9Ieb7CFZRot3VDGnnrYjLbApiZCY9m10ukDTykPErJ4ZEWEjUtMN7oAhRN3/Ie O2NKvyVo4bOI5zHf4iCIVNp/hDHs01FoMfJfQYRACpBtsIKm+1pn4uTJtrezhJvn qsvctMEMtXwZDlntwhQwU54XJyyGq7gJwuRAZ5xgW6WWQQI+NNKUm2XZu3YwJZF+ 4Ji2vj6kRpS46HWG0VRUX12hXdDZdwFjcZ7eXZiSL3gZJ3xuEJDQ3jyyRwfe5t+8 W6eQRW9Sq1gN4OLwWjfltqs9l52XYfw0jitmX8Y98l1K05a4X74iIPRC5s97HV0E XfvW+jRS4+x7tRp4wwcI2cGTPRTdK8xjmRWM3l2PQzgeG3AHUs8= =rC5G -----END PGP SIGNATURE----- Merge tag 'nfsd-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd updates from Chuck Lever: "NFSD is finally able to offer write delegations to clients that open files with O_WRONLY, thanks to patches from Dai Ngo. We're expecting this to accelerate a few interesting corner cases. The cap on the number of operations per NFSv4 COMPOUND has been lifted. Now, clients that send COMPOUNDs containing dozens of operations (for example, a long stream of LOOKUP operations to walk a pathname in a single round trip) will no longer be rejected. This release re-enables the ability for NFSD to perform NFSv4.2 COPY operations asynchronously. This feature has been disabled to mitigate the risk of denial-of-service when too many such requests arrive. Many thanks to the contributors, reviewers, testers, and bug reporters who participated during the v6.17 development cycle" * tag 'nfsd-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (32 commits) nfsd: Drop dprintk in blocklayout xdr functions sunrpc: make svc_tcp_sendmsg() take a signed sentp pointer sunrpc: rearrange struct svc_rqst for fewer cachelines sunrpc: return better error in svcauth_gss_accept() on alloc failure sunrpc: reset rq_accept_statp when starting a new RPC sunrpc: remove SVC_SYSERR sunrpc: fix handling of unknown auth status codes NFSD: Simplify struct knfsd_fh NFSD: Access a knfsd_fh's fsid by pointer Revert "NFSD: Force all NFSv4.2 COPY requests to be synchronous" NFSD: Avoid multiple -Wflex-array-member-not-at-end warnings NFSD: Use vfs_iocb_iter_write() NFSD: Use vfs_iocb_iter_read() NFSD: Clean up kdoc for nfsd_open_local_fh() NFSD: Clean up kdoc for nfsd_file_put_local() NFSD: Remove definition for trace_nfsd_ctl_maxconn NFSD: Remove definition for trace_nfsd_file_gc_recent NFSD: Remove definitions for unused trace_nfsd_file_lru trace points NFSD: Remove definition for trace_nfsd_file_unhash_and_queue nfsd: Use correct error code when decoding extents ... |
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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.