Changes in Kconfig

f2b4fa19 - ext4: switch to using the crc32c library

Mon, 02 Dec 2024 01:08:41 +0000

ext4: switch to using the crc32c libraryNow that the crc32c() library function directly takes advantage ofarchitecture-specific optimizations, it is unnecessary to go through thecrypto API. Just use crc32c(). This is much simpler, and it improvesperformance due to eliminating the crypto API overhead.Reviewed-by: Ard Biesheuvel Reviewed-by: Darrick J. Wong Acked-by: Theodore Ts'o Link: https://lore.kernel.org/r/20241202010844.144356-17-ebiggers@kernel.orgSigned-off-by: Eric Biggers List of files: /linux-6.15/fs/ext4/Kconfig

925c86a1 - fs: add CONFIG_BUFFER_HEAD

Tue, 01 Aug 2023 17:22:01 +0000

fs: add CONFIG_BUFFER_HEADAdd a new config option that controls building the buffer_head code, andselect it from all file systems and stacking drivers that need it.For the block device nodes and alternative iomap based buffered I/O pathis provided when buffer_head support is not enabled, and iomap needs aa small tweak to define the IOMAP_F_BUFFER_HEAD flag to 0 to not callinto the buffer_head code when it doesn't exist.Otherwise this is just Kconfig and ifdef changes.Signed-off-by: Christoph Hellwig Reviewed-by: Luis Chamberlain Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20230801172201.1923299-7-hch@lst.deSigned-off-by: Jens Axboe List of files: /linux-6.15/fs/ext4/Kconfig

302fdade - ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it

Fri, 22 Jan 2021 11:02:34 +0000

ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting itEXT4_KUNIT_TESTS selects EXT4_FS, thus enabling an optional feature theuser may not want to enable. Fix this by making the test depend onEXT4_FS instead.Fixes: 1cbeab1b242d16fd ("ext4: add kunit test for decoding extended timestamps")Reviewed-by: Randy Dunlap Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20210122110234.2825685-1-geert@linux-m68k.orgSigned-off-by: Theodore Ts'o List of files: /linux-6.15/fs/ext4/Kconfig

e65bf6e4 - ext4: replace HTTP links with HTTPS ones

Mon, 06 Jul 2020 19:03:39 +0000

ext4: replace HTTP links with HTTPS onesRationale:Reduces attack surface on kernel devs opening the links for MITMas HTTPS traffic is much harder to manipulate.Deterministic algorithm:For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS.Signed-off-by: Alexander A. Klimov Link: https://lore.kernel.org/r/20200706190339.20709-1-grandmaster@al2klimov.deSigned-off-by: Theodore Ts'o List of files: /linux-6.15/fs/ext4/Kconfig

70aa1554 - ext4: make ext_debug() implementation to use pr_debug()

Sun, 10 May 2020 06:24:55 +0000

ext4: make ext_debug() implementation to use pr_debug()ext_debug() msgs could be helpful, provided those could be enabledwithout recompiling kernel and also if we could selectively enableonly required prints for case by case debugging.So make ext_debug() implementation use pr_debug().Also change ext_debug() to be defined with CONFIG_EXT4_DEBUG.So EXT_DEBUG macro now mostly remain for below 3 functions.ext4_ext_show_path/leaf/move() (whose print msgs use ext_debug()which again could be dynamically enabled using pr_debug())This also changes the ext_debug() to take inode as a parameterto add inode no. in all of it's msgs.Prints additional info like process name / pid, superblock id etc.This also removes any explicit function names passed in ext_debug().Since ext_debug() on it's own prints file, func and line no.Signed-off-by: Ritesh Harjani Link: https://lore.kernel.org/r/d31dc189b0aeda9384fe7665e36da7cd8c61571f.1589086800.git.riteshh@linux.ibm.comSigned-off-by: Theodore Ts'o List of files: /linux-6.15/fs/ext4/Kconfig

d3df1453 - ext4: mballoc: make mb_debug() implementation to use pr_debug()

Sun, 10 May 2020 06:24:54 +0000

ext4: mballoc: make mb_debug() implementation to use pr_debug()mb_debug() msg had only 1 control level for all type of msgs.And if we enable mballoc_debug then all of those msgs would be enabled.Instead of adding multiple debug levels for mb_debug() msgs, usepr_debug() with which we could have finer control to print msgs at allof different levels (i.e. at file, func, line no.).Also add process name/pid, superblk id, and other info in mb_debug()msg. This also kills the mballoc_debug module parameter, since it isnot needed any more.Signed-off-by: Ritesh Harjani Link: https://lore.kernel.org/r/f0c660cbde9e2edbe95c67942ca9ad80dd2231eb.1589086800.git.riteshh@linux.ibm.comSigned-off-by: Theodore Ts'o List of files: /linux-6.15/fs/ext4/Kconfig

d194e12b - fs: ext4: default KUNIT_* fragments to KUNIT_ALL_TESTS

Mon, 11 May 2020 13:14:38 +0000

fs: ext4: default KUNIT_* fragments to KUNIT_ALL_TESTSThis makes it easier to enable all KUnit fragments.Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt inmenuconfig.Reviewed-by: David Gow Signed-off-by: Anders Roxell Signed-off-by: Shuah Khan List of files: /linux-6.15/fs/ext4/Kconfig

284b3f6e - ext4: remove unnecessary selections from EXT3_FS

Thu, 26 Dec 2019 15:39:20 +0000

ext4: remove unnecessary selections from EXT3_FSSince EXT3_FS already selects EXT4_FS, there's no reason for it toredundantly select all the selections of EXT4_FS -- notwithstanding thecomments that claim otherwise.Remove these redundant selections to avoid confusion.Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20191226153920.4466-1-ebiggers@kernel.orgSigned-off-by: Theodore Ts'o Reviewed-by: Jan Kara List of files: /linux-6.15/fs/ext4/Kconfig

ede7a09f - fscrypt: Allow modular crypto algorithms

Fri, 27 Dec 2019 02:47:00 +0000

fscrypt: Allow modular crypto algorithmsThe commit 643fa9612bf1 ("fscrypt: remove filesystem specificbuild config option") removed modular support for fs/crypto. Thiscauses the Crypto API to be built-in whenever fscrypt is enabled.This makes it very difficult for me to test modular builds ofthe Crypto API without disabling fscrypt which is a pain.As fscrypt is still evolving and it's developing new ties with thefs layer, it's hard to build it as a module for now.However, the actual algorithms are not required until a filesystemis mounted. Therefore we can allow them to be built as modules.Signed-off-by: Herbert Xu Link: https://lore.kernel.org/r/20191227024700.7vrzuux32uyfdgum@gondor.apana.org.auSigned-off-by: Eric Biggers List of files: /linux-6.15/fs/ext4/Kconfig

c475c77d - kunit: allow kunit tests to be loaded as a module

Mon, 06 Jan 2020 22:28:20 +0000

kunit: allow kunit tests to be loaded as a moduleAs tests are added to kunit, it will become less feasible to executeall built tests together. By supporting modular tests we providea simple way to do selective execution on a running system; specifyingCONFIG_KUNIT=yCONFIG_KUNIT_EXAMPLE_TEST=m...means we can simply "insmod example-test.ko" to run the tests.To achieve this we need to do the following:o export the required symbols in kunito string-stream tests utilize non-exported symbols so for now we skip building them when CONFIG_KUNIT_TEST=m.o drivers/base/power/qos-test.c contains a few unexported interface references, namely freq_qos_read_value() and freq_constraints_init(). Both of these could be potentially defined as static inline functions in include/linux/pm_qos.h, but for now we simply avoid supporting module build for that test suite.o support a new way of declaring test suites. Because a module cannot do multiple late_initcall()s, we provide a kunit_test_suites() macro to declare multiple suites within the same module at once.o some test module names would have been too general ("test-test" and "example-test" for kunit tests, "inode-test" for ext4 tests); rename these as appropriate ("kunit-test", "kunit-example-test" and "ext4-inode-test" respectively).Also define kunit_test_suite() via kunit_test_suites()as callers in other trees may need the old definition.Co-developed-by: Knut Omang Signed-off-by: Knut Omang Signed-off-by: Alan Maguire Reviewed-by: Brendan Higgins Acked-by: Theodore Ts'o # for ext4 bitsAcked-by: David Gow # For list-testReported-by: kbuild test robot Signed-off-by: Shuah Khan List of files: /linux-6.15/fs/ext4/Kconfig

1cbeab1b - ext4: add kunit test for decoding extended timestamps

Thu, 17 Oct 2019 22:12:33 +0000

ext4: add kunit test for decoding extended timestampsKUnit tests for decoding extended 64 bit timestamps that verify theseconds part of [a/c/m] timestamps in ext4 inode structs are decodedcorrectly.Test data is derived from the table in the Inode Timestamps section ofDocumentation/filesystems/ext4/inodes.rst.KUnit tests run during boot and output the results to the debug login TAP format (http://testanything.org/). Only useful for kernel devsrunning KUnit test harness and are not for inclusion into a productionbuild.Signed-off-by: Iurii Zaikin Reviewed-by: Theodore Ts'o Reviewed-by: Brendan Higgins Tested-by: Brendan Higgins Reviewed-by: Shuah Khan Signed-off-by: Shuah Khan List of files: /linux-6.15/fs/ext4/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/fs/ext4/Kconfig

231fe82b - ext4: Change debugging support help prefix from EXT4 to Ext4

Thu, 21 Feb 2019 16:37:28 +0000

ext4: Change debugging support help prefix from EXT4 to Ext4All other configuration options for the ext* family of file systems use"Ext%u" instead of "EXT%u".Fixes: 6ba495e9259cd9a0 ("ext4: Add configurable run-time mballoc debugging")Signed-off-by: Geert Uytterhoeven Signed-off-by: Theodore Ts'o List of files: /linux-6.15/fs/ext4/Kconfig

643fa961 - fscrypt: remove filesystem specific build config option

Wed, 12 Dec 2018 09:50:12 +0000

fscrypt: remove filesystem specific build config optionIn order to have a common code base for fscrypt "post read" processingfor all filesystems which support encryption, this commit removesfilesystem specific build config option (e.g. CONFIG_EXT4_FS_ENCRYPTION)and replaces it with a build option (i.e. CONFIG_FS_ENCRYPTION) whosevalue affects all the filesystems making use of fscrypt.Reviewed-by: Eric Biggers Signed-off-by: Chandan Rajendra Signed-off-by: Eric Biggers List of files: /linux-6.15/fs/ext4/Kconfig

91581e4c - fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at

Wed, 20 Dec 2017 13:58:52 +0000

fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.atThis link is replicated in most filesystems' config stanzas. Referringto an archived version of that site is pointless as it mostly deals withpatches; user documentation is available elsewhere.Signed-off-by: Adam Borowski CC: Alexander Viro Reviewed-by: Darrick J. Wong Acked-by: Jan Kara Acked-by: Dave Kleikamp Acked-by: David Sterba Acked-by: "Yan, Zheng" Acked-by: Chao Yu Acked-by: Jaegeuk Kim Acked-by: Steve French Signed-off-by: Jonathan Corbet List of files: /linux-6.15/fs/ext4/Kconfig

545052e9 - ext4: Switch to iomap for SEEK_HOLE / SEEK_DATA

Sun, 01 Oct 2017 21:58:54 +0000

ext4: Switch to iomap for SEEK_HOLE / SEEK_DATASwitch to the iomap_seek_hole and iomap_seek_data helpers forimplementing lseek SEEK_HOLE / SEEK_DATA, and remove all the code thatisn't needed any more.Note that with this patch ext4 will now always depend on the iomap codeinstead of only when CONFIG_DAX is enabled, and it requires adding acall into the extent status tree for iomap_begin as well to properlydeal with delalloc extents.Signed-off-by: Christoph Hellwig Signed-off-by: Andreas Gruenbacher Signed-off-by: Theodore Ts'o Reviewed-by: Jan Kara [More fixes and cleanups by Andreas] List of files: /linux-6.15/fs/ext4/Kconfig

6affb9d7 - dax: fix build warnings with FS_DAX and !FS_IOMAP

Tue, 24 Jan 2017 23:17:51 +0000

dax: fix build warnings with FS_DAX and !FS_IOMAPAs reported by Arnd: https://lkml.org/lkml/2017/1/10/756Compiling with the following configuration: # CONFIG_EXT2_FS is not set # CONFIG_EXT4_FS is not set # CONFIG_XFS_FS is not set # CONFIG_FS_IOMAP depends on the above filesystems, as is not set CONFIG_FS_DAX=ygenerates build warnings about unused functions in fs/dax.c: fs/dax.c:878:12: warning: `dax_insert_mapping' defined but not used [-Wunused-function] static int dax_insert_mapping(struct address_space *mapping, ^~~~~~~~~~~~~~~~~~ fs/dax.c:572:12: warning: `copy_user_dax' defined but not used [-Wunused-function] static int copy_user_dax(struct block_device *bdev, sector_t sector, size_t size, ^~~~~~~~~~~~~ fs/dax.c:542:12: warning: `dax_load_hole' defined but not used [-Wunused-function] static int dax_load_hole(struct address_space *mapping, void **entry, ^~~~~~~~~~~~~ fs/dax.c:312:14: warning: `grab_mapping_entry' defined but not used [-Wunused-function] static void *grab_mapping_entry(struct address_space *mapping, pgoff_t index, ^~~~~~~~~~~~~~~~~~Now that the struct buffer_head based DAX fault paths and I/O path havebeen removed we really depend on iomap support being present for DAX.Make this explicit by selecting FS_IOMAP if we compile in DAX support.This allows us to remove conditional selections of FS_IOMAP when FS_DAXwas present for ext2 and ext4, and to remove an #ifdef in fs/dax.c.Link: http://lkml.kernel.org/r/1484087383-29478-1-git-send-email-ross.zwisler@linux.intel.comSigned-off-by: Ross Zwisler Reported-by: Arnd Bergmann Reviewed-by: Christoph Hellwig Reviewed-by: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/ext4/Kconfig

4f5a763c - ext4: Add select for CONFIG_FS_IOMAP

Wed, 23 Nov 2016 04:21:58 +0000

ext4: Add select for CONFIG_FS_IOMAPWhen ext4 is compiled with DAX support, it now needs the iomap code. Addappropriate select to Kconfig.Signed-off-by: Jan Kara Signed-off-by: Theodore Ts'o List of files: /linux-6.15/fs/ext4/Kconfig

a7550b30 - ext4 crypto: migrate into vfs's crypto engine

Sun, 10 Jul 2016 18:01:03 +0000

ext4 crypto: migrate into vfs's crypto engineThis patch removes the most parts of internal crypto codes.And then, it modifies and adds some ext4-specific crypt codes to use the genericfacility.Signed-off-by: Jaegeuk Kim Signed-off-by: Theodore Ts'o List of files: /linux-6.15/fs/ext4/Kconfig

d4eb6dee - ext4: Update EXT4_USE_FOR_EXT2 description

Thu, 24 Sep 2015 10:38:22 +0000

ext4: Update EXT4_USE_FOR_EXT2 descriptionConfiguration option EXT4_USE_FOR_EXT2 has no effect on ext3 support.Support for ext3 is always included now.Signed-off-by: Jean Delvare Fixes: c290ea01ab ("fs: Remove ext3 filesystem driver")Cc: Jan Kara Cc: Theodore Ts'o Cc: Andreas Dilger Signed-off-by: Jan Kara List of files: /linux-6.15/fs/ext4/Kconfig