src/sys/dev/null, branch main

Match style in 3613896

2025-10-19T05:54:02Z

Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D53193

knotes: kqueue: handle copy for trivial filters

2025-10-18T05:12:37Z

Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D52045

null: support EVFILT_READ/EVFILT_WRITE kevent filters

2025-08-11T20:31:01Z

This enhances the full, null, and zero devices to support read and write kevent filters. A read event is immediately triggered for full and null, and never for zero. A write event is immediately triggered for zero and null, and never for full. Reviewed by: cognet MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D51807

sys: Automated cleanup of cdefs and other formatting

2023-11-27T05:24:00Z

Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+.*\n/ Remove /\n+#include\s+.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+\n#include\s+/ Remove /\n+#include\s+\n#include\s+/ Remove /\n+#include\s+\n#include\s+/ Sponsored by: Netflix

sys: Remove $FreeBSD$: one-line .c pattern

2023-08-16T17:54:36Z

Remove /^[\s*]*__FBSDID$"\$FreeBSD\$"$;?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-05-12T16:44:03Z

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix

Remove 12.x ABI compat for kernel dump ioctls

2022-04-15T15:06:05Z

This code was marked gone_in(14), so it can now be removed. The only consumer of this interface is dumpon(8). We do not maintain strict backwards compatibility for this utility because a) it can't/shouldn't be used from a jail or chroot and b) it is highly specific interface unique to FreeBSD. The host's (presumably more up-to-date) copy of dumpon(8) should be used to configure kernel dump devices. Reviewed by: markj, emaste MFC after: never Differential Revision: https://reviews.freebsd.org/D34914

Remove 11.x ABI compat for kernel dump ioctls

2022-04-15T15:06:04Z

This code was marked gone_in(13), so its time has passed. The only consumer of this interface is dumpon(8). We do not maintain strict backwards compatibility for this utility because a) it can't/shouldn't be used from a jail or chroot and b) it is highly specific interface unique to FreeBSD. The host's (presumably more up-to-date) copy of dumpon(8) should be used to configure kernel dump devices. Reviewed by: markj, emaste MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D34913

null: clean up empty lines in .c and .h files

2020-09-01T22:03:46Z

List-ify kernel dump device configuration

2019-05-06T18:24:07Z

Allow users to specify multiple dump configurations in a prioritized list. This enables fallback to secondary device(s) if primary dump fails. E.g., one might configure a preference for netdump, but fallback to disk dump as a second choice if netdump is unavailable. This change does not list-ify netdump configuration, which is tracked separately from ordinary disk dumps internally; only one netdump configuration can be made at a time, for now. It also does not implement IPv6 netdump. savecore(8) is already capable of scanning and iterating multiple devices from /etc/fstab or passed on the command line. This change doesn't update the rc or loader variables 'dumpdev' in any way; it can still be set to configure a single dump device, and rc.d/savecore still uses it as a single device. Only dumpon(8) is updated to be able to configure the more complicated configurations for now. As part of revving the ABI, unify netdump and disk dump configuration ioctl / structure, and leave room for ipv6 netdump as a future possibility. Backwards-compatibility ioctls are added to smooth ABI transition, especially for developers who may not keep kernel and userspace perfectly synced. Reviewed by: markj, scottl (earlier version) Relnotes: maybe Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D19996