FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=main 2024-06-01T23:31:04Z 2024-06-01T23:31:04Z Alan Somers asomers@FreeBSD.org 2024-06-01T18:38:16Z urn:sha1:e461c7bc7dde5dc84dc9e04cb623c6f567bfe6e5 It's never had any effect. The kernel ignores it. Remove it from the documentation. But continue to parse it on the command line, for backwards-compatibility. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/1271 2024-05-16T16:25:29Z Alexander Ziaee concussious@runbox.com 2024-05-15T18:59:50Z urn:sha1:1a720cbec513210fa2e85c3882741ef2f6dc5f35 Reviewed by: des, imp Pull Request: https://github.com/freebsd/freebsd-src/pull/1077 2023-11-27T05:23:29Z Warner Losh imp@FreeBSD.org 2023-11-23T17:21:37Z urn:sha1:51e16cb8fc536913f490ac6bc9c17e92ebd0411b Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix 2023-08-16T17:55:10Z Warner Losh imp@FreeBSD.org 2023-08-16T17:55:10Z urn:sha1:fa9896e082a1046ff4fbc75fcba4d18d1f2efc19 Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/ 2021-09-11T12:04:52Z Ka Ho Ng khng@FreeBSD.org 2021-09-11T12:03:38Z urn:sha1:3703c18883341f3ff09c42d7f3b36ab80e4a071b This adds an option to detect if hole-punching is implemented by the underlying file system. If this flag is set, and if the underlying file system does not support hole-punching, md(4) fails BIO_DELETE requests with EOPNOTSUPP. Sponsored by: The FreeBSD Foundation Reviewed by: markj Differential Revision: https://reviews.freebsd.org/D31883 2020-11-06T15:55:13Z Mateusz Piotrowski 0mp@FreeBSD.org 2020-11-06T15:55:13Z urn:sha1:8bd4b3f949d31ea4cf1c80ab247eddb45b626dab MFC after: 3 days 2020-11-06T15:38:51Z Mateusz Piotrowski 0mp@FreeBSD.org 2020-11-06T15:38:51Z urn:sha1:f35062c735c83fba39d845757ef78d2638516926 "mandoc -Tlint" complained about the Xr to vnconfig, which was removed in r238202. I am not sure but maybe it's time to do the same to vn(4). MFC after: 2 weeks 2018-12-21T08:15:31Z Bruce Evans bde@FreeBSD.org 2018-12-21T08:15:31Z urn:sha1:9e5ed8593f6bf24929021e092e2de23e8ed9e7b8 implement not double-caching for reads from vnode-backed md devices. Use VOP_ADVISE() similarly instead of !IO_DIRECT unsimilarly for writes. Add a "cache" option to mdconfig to allow changing the default of not caching. This depends on a recent commit to fix VOP_ADVISE(). A previous version had optimizations for sequential i/o's (merge the i/o's and only uncache for discontiguous i/o's and for full blocks), but optimizations and knowledge of block boundaries belong in VOP_ADVISE(). Read-ahead should also be handled better, by supporting it in md and discarding it in VOP_ADVISE(). POSIX_FADV_DONTNEED is ignored by zfs, but so is IO_DIRECT. POSIX_FADV_DONTNEED works better than IO_DIRECT if it is not ignored, since it only discards from the buffer cache immediately, while IO_DIRECT also discards from the page cache immediately. IO_DIRECT was not used for writes since it was claimed to be too slow, but most of the slowness for writes is from doing them synchronously by default. Non-synchronous writes still deadlock in many cases. IO_DIRECT only has a special implementation for ffs reads with DIRECTIO configured. Otherwise, if it is not ignored than it uses the buffer and page caches normally except for discarding everything after each i/o, and then it has much the same overheads as POSIX_FADV_DONTNEED. The overheads for reading with ffs and DIRECTIO were similar in tests of md. Reviewed by: kib 2017-08-28T15:54:07Z Maxim Sobolev sobomax@FreeBSD.org 2017-08-28T15:54:07Z urn:sha1:f7ca2bbe447a5224efb4078fdd1d29910f495b91 This feature comes from the fact that we rely memory-backed md(4) in our build process heavily. However, if the build goes haywire the allocated resources (i.e. swap and memory-backed md(4)'s) need to be purged. It is extremely useful to have ability to attach arbitrary labels to each of the virtual disks so that they can be identified and GC'ed if neecessary. MFC after: 4 weeks Differential Revision: https://reviews.freebsd.org/D10457 2017-05-31T21:18:11Z Stephen J. Kiernan stevek@FreeBSD.org 2017-05-31T21:18:11Z urn:sha1:9a81ba0f241a477b92f3ae3b48429a04724459f2 Add -o [no]verify option to mdconfig (and document in man page.) Implement GEOM attribute MNT::verified to ask md if the backing vnode is verified. Check for MNT::verified in cd9660 mount to flag the mount as MNT_VERIFIED if the underlying device has been verified. Reviewed by: rwatson Approved by: sjg (mentor) Obtained from: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D2902