Changes in Kconfig

92a8b224 - lib/min_heap: introduce non-inline versions of min heap API functions

Sun, 20 Oct 2024 04:01:51 +0000

lib/min_heap: introduce non-inline versions of min heap API functionsPatch series "Enhance min heap API with non-inline functions andoptimizations", v2.Add non-inline versions of the min heap API functions in lib/min_heap.cand updates all users outside of kernel/events/core.c to use thesenon-inline versions. To mitigate the performance impact of indirectfunction calls caused by the non-inline versions of the swap and comparefunctions, a builtin swap has been introduced that swaps elements based ontheir size. Additionally, it micro-optimizes the efficiency of the minheap by pre-scaling the counter, following the same approach as inlib/sort.c. Documentation for the min heap API has also been added to thecore-api section.This patch (of 10):All current min heap API functions are marked with '__always_inline'. However, as the number of users increases, inlining these functionseverywhere leads to a increase in kernel size.In performance-critical paths, such as when perf events are enabled andmin heap functions are called on every context switch, it is important toretain the inline versions for optimal performance. To balance this, theoriginal inline functions are kept, and additional non-inline versions ofthe functions have been added in lib/min_heap.c.Link: https://lkml.kernel.org/r/20241020040200.939973-1-visitorckw@gmail.comLink: https://lore.kernel.org/20240522161048.8d8bbc7b153b4ecd92c50666@linux-foundation.orgLink: https://lkml.kernel.org/r/20241020040200.939973-2-visitorckw@gmail.comSigned-off-by: Kuan-Wei Chiu Suggested-by: Andrew Morton Cc: Adrian Hunter Cc: Arnaldo Carvalho de Melo Cc: Ching-Chun (Jim) Huang Cc: Coly Li Cc: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Jonathan Corbet Cc: Kent Overstreet Cc: Kuan-Wei Chiu Cc: "Liang, Kan" Cc: Mark Rutland Cc: Matthew Sakai Cc: Matthew Wilcox (Oracle) Cc: Namhyung Kim Cc: Peter Zijlstra Signed-off-by: Andrew Morton List of files: /linux-6.15/drivers/md/bcache/Kconfig

8c8d2d96 - bcache: move closures to lib/

Sat, 18 Mar 2017 00:35:23 +0000

bcache: move closures to lib/Prep work for bcachefs - being a fork of bcache it also uses closuresSigned-off-by: Kent Overstreet Acked-by: Coly Li Reviewed-by: Randy Dunlap List of files: /linux-6.15/drivers/md/bcache/Kconfig

640c46a2 - bcache: remove EXPERIMENTAL for Kconfig option 'Asynchronous device registration'

Tue, 19 Jul 2022 04:27:24 +0000

bcache: remove EXPERIMENTAL for Kconfig option 'Asynchronous device registration'The "Asynchronous device registration (EXPERIMENTAL)" Kconfig option isfor 2+ years, it is used when registration takes too much time formassive amount of cached data, to avoid udev task timeout during boottime.Many users and products enable this Kconfig option for quite long time(e.g. SUSE Linux) and it works as expected and no issue reported.It is time to remove the "EXPERIMENTAL" tag from this Kconfig item.Signed-off-by: Coly Li Link: https://lore.kernel.org/r/20220719042724.8498-2-colyli@suse.deSigned-off-by: Jens Axboe List of files: /linux-6.15/drivers/md/bcache/Kconfig

c66fd019 - block: make the block holder code optional

Wed, 04 Aug 2021 09:41:40 +0000

block: make the block holder code optionalMove the block holder code into a separate file as it is not in any wayrelated to the other block_dev.c code, and add a new selectable configoption for it so that we don't have to build it without any remappeddrivers selected.The Kconfig symbol contains a _DEPRECATED suffix to match the commentsadded in commit 49731baa41df("block: restore multiple bd_link_disk_holder() support").Signed-off-by: Christoph Hellwig Reviewed-by: Mike Snitzer Link: https://lore.kernel.org/r/20210804094147.459763-2-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux-6.15/drivers/md/bcache/Kconfig

6acd193b - bcache: Fix typo in Kconfig name

Sat, 25 Jul 2020 12:00:15 +0000

bcache: Fix typo in Kconfig nameregistraion -> registrationFixes: 0c8d3fceade2 ("bcache: configure the asynchronous registertion to be experimental")Signed-off-by: Jean Delvare Reviewed-by: Coly Li Cc: Jens Axboe Cc: Kent Overstreet Signed-off-by: Jens Axboe List of files: /linux-6.15/drivers/md/bcache/Kconfig

0c8d3fce - bcache: configure the asynchronous registertion to be experimental

Wed, 27 May 2020 04:01:55 +0000

bcache: configure the asynchronous registertion to be experimentalIn order to avoid the experimental async registration interface tobe treated as new kernel ABI for common users, this patch makes itas an experimental kernel configure BCACHE_ASYNC_REGISTRAION.This interface is for extreme large cached data situation, to make surethe bcache device can always created without the udev timeout issue. Fornormal users the async or sync registration does not make difference.In future when we decide to use the asynchronous registration as defaultbehavior, this experimental interface may be removed.Signed-off-by: Coly Li Signed-off-by: Jens Axboe List of files: /linux-6.15/drivers/md/bcache/Kconfig

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/md/bcache/Kconfig

d2359963 - bcache: use routines from lib/crc64.c for CRC64 calculation

Wed, 22 Aug 2018 04:57:15 +0000

bcache: use routines from lib/crc64.c for CRC64 calculationNow we have crc64 calculation in lib/crc64.c, it is unnecessary forbcache to use its own version. This patch changes bcache code to usecrc64 routines in lib/crc64.c.Link: http://lkml.kernel.org/r/20180718165545.1622-3-colyli@suse.deSigned-off-by: Coly Li Reviewed-by: Hannes Reinecke Reviewed-by: Andy Shevchenko Cc: Michael Lyle Cc: Kent Overstreet Cc: Thomas Gleixner Cc: Kate Stewart Cc: Randy Dunlap Cc: Eric Biggers Cc: Greg Kroah-Hartman Cc: Noah Massey Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/drivers/md/bcache/Kconfig

bc81b47e - bcache: prefer 'help' in Kconfig

Sat, 11 Aug 2018 05:19:53 +0000

bcache: prefer 'help' in KconfigCurrent bcache Kconfig uses '---help---' as header of help information,for now 'help' is prefered. This patch fixes this style by replacing'---help---' by 'help' in bcache Kconfig file.Signed-off-by: Coly Li Reviewed-by: Shenghui Wang Signed-off-by: Jens Axboe List of files: /linux-6.15/drivers/md/bcache/Kconfig

5fb94e9c - docs: Fix some broken references

Tue, 08 May 2018 18:14:57 +0000

docs: Fix some broken referencesAs we move stuff around, some doc references are broken. Fix some ofthem via this script: ./scripts/documentation-file-ref-check --fixManually checked if the produced result is valid, removing a fewfalse-positives.Acked-by: Takashi Iwai Acked-by: Masami Hiramatsu Acked-by: Stephen Boyd Acked-by: Charles Keepax Acked-by: Mathieu Poirier Reviewed-by: Coly Li Signed-off-by: Mauro Carvalho Chehab Acked-by: Jonathan Corbet List of files: /linux-6.15/drivers/md/bcache/Kconfig

3f5e0a34 - bcache: Kill dead cgroup code

Thu, 23 Jan 2014 12:42:58 +0000

bcache: Kill dead cgroup codeThis hasn't been used or even enabled in ages.Signed-off-by: Kent Overstreet List of files: /linux-6.15/drivers/md/bcache/Kconfig

280481d0 - bcache: Debug code improvements

Thu, 24 Oct 2013 23:36:03 +0000

bcache: Debug code improvementsCouple changes: * Consolidate bch_check_keys() and bch_check_key_order(), and move the checks that only check_key_order() could do to bch_btree_iter_next(). * Get rid of CONFIG_BCACHE_EDEBUG - now, all that code is compiled in when CONFIG_BCACHE_DEBUG is enabled, and there's now a sysfs file to flip on the EDEBUG checks at runtime. * Dropped an old not terribly useful check in rw_unlock(), and refactored/improved a some of the other debug code.Signed-off-by: Kent Overstreet List of files: /linux-6.15/drivers/md/bcache/Kconfig

bbb1c3b5 - bcache: drop "select CLOSURES"

Mon, 13 May 2013 08:35:21 +0000

bcache: drop "select CLOSURES"The Kconfig entry for BCACHE selects CLOSURES. But there's no Kconfigsymbol CLOSURES. That symbol was used in development versions of bcache,but was removed when the closures code was no longer provided as akernel library. It can safely be dropped.Signed-off-by: Paul Bolle List of files: /linux-6.15/drivers/md/bcache/Kconfig

cafe5635 - bcache: A block layer cache

Sat, 23 Mar 2013 23:11:31 +0000

bcache: A block layer cacheDoes writethrough and writeback caching, handles unclean shutdown, andhas a bunch of other nifty features motivated by real world usage.See the wiki at http://bcache.evilpiepirate.org for more.Signed-off-by: Kent Overstreet List of files: /linux-6.15/drivers/md/bcache/Kconfig