Changes in sbitmap.c

2ace52718376fdb56aca863da2eebe70d7e2ddb1 - Merge branch 'objtool/core'

Fri, 21 Nov 2025 10:21:20 +0000

Merge branch 'objtool/core'Bring in the UDB and objtool data annotations to avoid conflicts while further extending the bug exceptions.Signed-off-by: Peter Zijlstra List of files: /linux/lib/sbitmap.c

cb9f145f638d7afa633632a9290d6ad06caeb8ee - Merge remote-tracking branch 'drm/drm-next' into msm-next-robclark

Sat, 01 Nov 2025 12:47:30 +0000

Merge remote-tracking branch 'drm/drm-next' into msm-next-robclarkBack-merge drm-next to get caught up.Signed-off-by: Rob Clark List of files: /linux/lib/sbitmap.c

8b87f67b4c87452e21721887fa8dec1f4c6b2b7c - Merge branch 'next' into for-linus

Wed, 08 Oct 2025 04:53:13 +0000

Merge branch 'next' into for-linusPrepare input updates for 6.18 merge window. List of files: /linux/lib/sbitmap.c

d325efac5938efa3c2a25df72a1bd1af16cd0ed8 - Merge branch 'for-6.18/core' into for-linus

Tue, 30 Sep 2025 14:31:10 +0000

Merge branch 'for-6.18/core' into for-linus- allow HID-BPF to rebind a driver to hid-multitouch (Benjamin Tissoires)- Change hid_driver to use a const char* for .name (Rahul Rameshbabu) List of files: /linux/lib/sbitmap.c

71b28769d708f20046fc6f853cf93fb88a8b6e11 - Merge remote-tracking branch 'origin' into for-6.18/intel-thc-hid

Fri, 19 Sep 2025 15:08:20 +0000

Merge remote-tracking branch 'origin' into for-6.18/intel-thc-hidNeeded as a basisi for followup support for quicki2c advanced BIOS features.Signed-off-by: Jiri Kosina List of files: /linux/lib/sbitmap.c

f088104d837a991c65e51fa30bb4196169b3244d - Merge drm/drm-next into drm-intel-gt-next

Tue, 16 Sep 2025 10:53:20 +0000

Merge drm/drm-next into drm-intel-gt-nextBackmerge in order to get the commit: 048832a3f400 ("drm/i915: Refactor shmem_pwrite() to use kiocb and write_iter")To drm-intel-gt-next as there are followup fixes to be applied.Signed-off-by: Joonas Lahtinen List of files: /linux/lib/sbitmap.c

b4d90dbc4c1bc4bd3eb2d2989330af0eb95c98e8 - Merge drm/drm-next into drm-misc-next-fixes

Mon, 15 Sep 2025 08:23:28 +0000

Merge drm/drm-next into drm-misc-next-fixesBackmerging to drm-misc-next-fixes to get features and fixes fromv6.17-rc6.Signed-off-by: Thomas Zimmermann List of files: /linux/lib/sbitmap.c

702fdf3513b045f596f836d9a4b8672c76f11834 - Merge drm/drm-next into drm-intel-next

Wed, 10 Sep 2025 12:01:42 +0000

Merge drm/drm-next into drm-intel-nextCatching up with some display dependencies.Signed-off-by: Rodrigo Vivi List of files: /linux/lib/sbitmap.c

4b051897df2375414587a245ecb9bb1a4d26b3b8 - Merge tag 'v6.17-rc2' into HEAD

Thu, 21 Aug 2025 18:46:49 +0000

Merge tag 'v6.17-rc2' into HEADSync up with mainline to bring in changes to include/linux/sprintf.h List of files: /linux/lib/sbitmap.c

f24775c325900a683085c305fc9a403c490e667d - Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Thu, 17 Jul 2025 17:56:56 +0000

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netCross-merge networking fixes after downstream PR (net-6.17-rc2).No conflicts.Adjacent changes:drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c d7a276a5768f ("net: stmmac: rk: convert to suspend()/resume() methods") de1e963ad064 ("net: stmmac: rk: put the PHY clock on remove")Signed-off-by: Jakub Kicinski List of files: /linux/lib/sbitmap.c

9e293d47bfb9e812196670f2deeefc8b9d0226e4 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Mon, 11 Aug 2025 23:15:41 +0000

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfCross merge bpf/master after 6.17-rc1.No conflict.Signed-off-by: Martin KaFai Lau List of files: /linux/lib/sbitmap.c

ca994e8922f25f7fed2075098f185cf198109eaa - Merge drm/drm-next into drm-xe-next

Tue, 12 Aug 2025 12:58:37 +0000

Merge drm/drm-next into drm-xe-nextBring v6.17-rc1 to propagate commits from other subsystems, particularlyPCI, which has some new functions needed for SR-IOV integration.Signed-off-by: Lucas De Marchi List of files: /linux/lib/sbitmap.c

8d2b0853add1d7534dc0794e3c8e0b9e8c4ec640 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 11 Aug 2025 14:49:06 +0000

Merge drm/drm-fixes into drm-misc-fixesUpdating drm-misc-fixes to the state of v6.17-rc1. Begins a new releasecycle.Signed-off-by: Thomas Zimmermann List of files: /linux/lib/sbitmap.c

08c51f5bddc81c8c97c1eb11861b0dc009e5ccd8 - Merge drm/drm-next into drm-misc-n

Mon, 11 Aug 2025 12:37:45 +0000

Merge drm/drm-next into drm-misc-nUpdating drm-misc-next to the state of v6.17-rc1. Begins a new releasecycle.Signed-off-by: Thomas Zimmermann List of files: /linux/lib/sbitmap.c

2988dfed8a5dc752921a5790b81c06e781af51ce - Merge tag 'block-6.17-20250808' of git://git.kernel.dk/linux

Sat, 09 Aug 2025 05:47:28 +0000

Merge tag 'block-6.17-20250808' of git://git.kernel.dk/linuxPull more block updates from Jens Axboe: - MD pull request via Yu: - mddev null-ptr-dereference fix, by Erkun - md-cluster fail to remove the faulty disk regression fix, by Heming - minor cleanup, by Li Nan and Jinchao - mdadm lifetime regression fix reported by syzkaller, by Yu Kuai - MD pull request via Christoph - add support for getting the FDP featuee in fabrics passthru path (Nitesh Shetty) - add capability to connect to an administrative controller (Kamaljit Singh) - fix a leak on sgl setup error (Keith Busch) - initialize discovery subsys after debugfs is initialized (Mohamed Khalfella) - fix various comment typos (Bjorn Helgaas) - remove unneeded semicolons (Jiapeng Chong) - nvmet debugfs ordering issue fix - Fix UAF in the tag_set in zloop - Ensure sbitmap shallow depth covers entire set - Reduce lock roundtrips in io context lookup - Move scheduler tags alloc/free out of elevator and freeze lock, to fix some lockdep found issues - Improve robustness of queue limits checking - Fix a regression with IO priorities, if no io context exists* tag 'block-6.17-20250808' of git://git.kernel.dk/linux: (26 commits) lib/sbitmap: make sbitmap_get_shallow() internal lib/sbitmap: convert shallow_depth from one word to the whole sbitmap nvmet: exit debugfs after discovery subsystem exits block, bfq: Reorder struct bfq_iocq_bfqq_data md: make rdev_addable usable for rcu mode md/raid1: remove struct pool_info and related code md/raid1: change r1conf->r1bio_pool to a pointer type block: ensure discard_granularity is zero when discard is not supported zloop: fix KASAN use-after-free of tag set block: Fix default IO priority if there is no IO context nvme: fix various comment typos nvme-auth: remove unneeded semicolon nvme-pci: fix leak on sgl setup error nvmet: initialize discovery subsys after debugfs is initialized nvme: add capability to connect to an administrative controller nvmet: add support for FDP in fabrics passthru path md: rename recovery_cp to resync_offset md/md-cluster: handle REMOVE message earlier md: fix create on open mddev lifetime regression block: fix potential deadlock while running nr_hw_queue update ... List of files: /linux/lib/sbitmap.c

45fa9f97e65231a9fd4f9429489cb74c10ccd0fd - lib/sbitmap: make sbitmap_get_shallow() internal

Thu, 07 Aug 2025 03:24:13 +0000

lib/sbitmap: make sbitmap_get_shallow() internalBecause it's only used in sbitmap.cSigned-off-by: Yu Kuai Reviewed-by: Damien Le Moal Reviewed-by: Jan Kara Reviewed-by: Bart Van Assche Link: https://lore.kernel.org/r/20250807032413.1469456-3-yukuai1@huaweicloud.comSigned-off-by: Jens Axboe List of files: /linux/lib/sbitmap.c

42e6c6ce03fd3e41e39a0f93f9b1a1d9fa664338 - lib/sbitmap: convert shallow_depth from one word to the whole sbitmap

Thu, 07 Aug 2025 03:24:12 +0000

lib/sbitmap: convert shallow_depth from one word to the whole sbitmapCurrently elevators will record internal 'async_depth' to throttleasynchronous requests, and they both calculate shallow_dpeth based onsb->shift, with the respect that sb->shift is the available tags in oneword.However, sb->shift is not the availbale tags in the last word, see__map_depth:if (index == sb->map_nr - 1) return sb->depth - (index << sb->shift);For consequence, if the last word is used, more tags can be get thanexpected, for example, assume nr_requests=256 and there are four words,in the worst case if user set nr_requests=32, then the first word isthe last word, and still use bits per word, which is 64, to calculateasync_depth is wrong.One the ohter hand, due to cgroup qos, bfq can allow only one requestto be allocated, and set shallow_dpeth=1 will still allow the numberof words request to be allocated.Fix this problems by using shallow_depth to the whole sbitmap insteadof per word, also change kyber, mq-deadline and bfq to follow this,a new helper __map_depth_with_shallow() is introduced to calculateavailable bits in each word.Signed-off-by: Yu Kuai Link: https://lore.kernel.org/r/20250807032413.1469456-2-yukuai1@huaweicloud.comSigned-off-by: Jens Axboe List of files: /linux/lib/sbitmap.c

c771600c6af14749609b49565ffb4cac2959710d - Merge drm/drm-next into drm-intel-gt-next

Wed, 05 Feb 2025 09:29:14 +0000

Merge drm/drm-next into drm-intel-gt-nextWe need4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")in order to land a i915 PMU simplification and a fix. That landed in 6.12and we are stuck at 6.9 so lets bump things forward.Signed-off-by: Tvrtko Ursulin List of files: /linux/lib/sbitmap.c

25768de50b1f2dbb6ea44bd5148a87fe2c9c3688 - Merge branch 'next' into for-linus

Tue, 21 Jan 2025 05:37:39 +0000

Merge branch 'next' into for-linusPrepare input updates for 6.14 merge window. List of files: /linux/lib/sbitmap.c

6d4a0f4ea72319c9a37c1a7191695467006dd272 - Merge tag 'v6.13-rc3' into next

Tue, 17 Dec 2024 17:40:45 +0000

Merge tag 'v6.13-rc3' into nextSync up with the mainline. List of files: /linux/lib/sbitmap.c