FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F14.1 2023-08-16T17:54:24Z 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 2021-06-23T02:52:06Z Warner Losh imp@FreeBSD.org 2021-06-23T02:27:57Z urn:sha1:ddfc9c4c59e2ea4871100d8c076adffe3af8ff21 Now that the upper layers all go through a layer to tie into these information functions that translates an sbuf into char * and len. The current interface suffers issues of what to do in cases of truncation, etc. Instead, migrate all these functions to using struct sbuf and these issues go away. The caller is also in charge of any memory allocation and/or expansion that's needed during this process. Create a bus_generic_child_{pnpinfo,location} and make it default. It just returns success. This is for those busses that have no information for these items. Migrate the now-empty routines to using this as appropriate. Document these new interfaces with man pages, and oversight from before. Reviewed by: jhb, bcr Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D29937