FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=main 2026-02-17T20:45:13Z 2026-02-17T20:45:13Z John Baldwin jhb@FreeBSD.org 2026-02-17T20:45:13Z urn:sha1:6cf4e30252fe48b230b9d76cac20576d5b3d2ffa Some IVAR indices are special in that they have global meaning across multiple buses where as other IVARs are always private to the local bus. Try to document this a bit and add constants for the various ranges to avoid future conflicts. This is a no-op, but IVAR indices are now generally defined as enums as that makes it easier to define them in terms of ranges. Reviewed by: imp, royger, andrew Differential Revision: https://reviews.freebsd.org/D54159 2023-08-16T17:54:24Z Warner Losh imp@FreeBSD.org 2023-08-16T17:54:24Z urn:sha1:71625ec9ad2a9bc8c09784fbd23b759830e0ee5f Remove /^/[*/]\s*\$FreeBSD\$.*\n/ 2023-08-16T17:54:11Z Warner Losh imp@FreeBSD.org 2023-08-16T17:54:11Z urn:sha1:95ee2897e98f5d444f26ed2334cc7c439f9c16c6 Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/ 2023-05-12T16:44:03Z Warner Losh imp@FreeBSD.org 2023-05-10T15:40:58Z urn:sha1:4d846d260e2b9a3d4d0a701462568268cbfe7a5b 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 2021-12-14T22:27:47Z Warner Losh imp@FreeBSD.org 2021-12-14T22:16:42Z urn:sha1:31b35400cf77e788fec3d1c9fe590cdbb3544fd4 Remove more of the pccard infrasturcture. CardBus Yenta driver (cbb) still references the remaining bits. It needs some additiona work to remove 16-bit support still, so it remains. Sponsored by: Netflix 2021-12-10T00:04:45Z Warner Losh imp@FreeBSD.org 2021-12-10T00:04:45Z urn:sha1:c6df6f5322f7004c71216391e1c0b374d853704a Create a wrapper for newbus to take giant and for busses to take it too. bus_topo_lock() should be called before interacting with newbus routines and unlocked with bus_topo_unlock(). If you need the topology lock for some reason, bus_topo_mtx() will provide that. Sponsored by: Netflix Reviewed by: mav Differential Revision: https://reviews.freebsd.org/D31831 2021-11-30T22:18:01Z Warner Losh imp@FreeBSD.org 2021-11-30T22:03:26Z urn:sha1:1c7d15b030718d9d8cc70916fe3216a19f30896b The vast majority of the busy/unbusy users in the tree don't acquire Giant before calling device_busy/unbusy. However, if multiple threads are opening a file, say, that causes the device to busy/unbusy, then we can race to the root marking things busy. Move to using a reference count to keep track of how many times a device_t has been made busy. Use that count to make the same decisions that we'd make with the old device state. Note: gpiopps.c uses D_TRACKCLOSE. Others do as well. However, there's a known race with closes that will be corrected for all the drivers that do this in a future commit. Sponsored by: Netflix Reviewed by: hselasky, jhb Differential Revision: https://reviews.freebsd.org/D26284 2021-11-30T22:17:07Z Warner Losh imp@FreeBSD.org 2021-11-30T22:12:22Z urn:sha1:25c49c426c6b6067f7374fae39fb38333cd11e0c This reverts commit 08e781915363f98f4318a864b3b5a52bd99424c6. Commit message was for a very old version of the patch. Will re-commit with the right one since it's so bad. There's no locked versions of it...that code was reworked to use refcnt APIs. Noticed by: jhb, jtrc27 Sponsored by: Netflix 2021-11-30T22:03:26Z Warner Losh imp@FreeBSD.org 2021-11-30T22:03:26Z urn:sha1:08e781915363f98f4318a864b3b5a52bd99424c6 The vast majority of the busy/unbusy users in the tree don't acquire Giant before calling device_busy/unbusy. However, if multiple threads are opening a file, say, that causes the device to busy/unbusy, then we can race to the root marking things busy. Create a new device_busy_locked and device_unbusy_locked that are the current implemntations of device_busy and device_unbusy. Make device_busy and unbusy acquire Giant before calling the _locked versrions. Since we never sleep in the busy/unbusy path, Giant's single threaded semantics suffice to keep this safe. Sponsored by: Netflix Reviewed by: hselasky, jhb Differential Revision: https://reviews.freebsd.org/D26284 2021-07-14T02:39:30Z Warner Losh imp@FreeBSD.org 2021-07-13T22:40:39Z urn:sha1:27d997be9750242c789faed04b68afd6e83068a3 Move card_if.m to sys/dev/cardbus since pccard is disappearing. Sponsored by: Netflix