user/sven/linux.git/fs/unicode, branch v5.10.239

Revert "unicode: Don't special case ignorable code points"

2024-12-14T18:48:33Z

commit 231825b2e1ff6ba799c5eaf396d3ab2354e37c6b upstream. This reverts commit 5c26d2f1d3f5e4be3e196526bead29ecb139cf91. It turns out that we can't do this, because while the old behavior of ignoring ignorable code points was most definitely wrong, we have case-folding filesystems with on-disk hash values with that wrong behavior. So now you can't look up those names, because they hash to something different. Of course, it's also entirely possible that in the meantime people have created *new* files with the new ("more correct") case folding logic, and reverting will just make other things break. The correct solution is to not do case folding in filesystems, but sadly, people seem to never really understand that. People still see it as a feature, not a bug. Reported-by: Qi Han Link: https://bugzilla.kernel.org/show_bug.cgi?id=219586 Cc: Gabriel Krisman Bertazi Requested-by: Jaegeuk Kim Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

unicode: Don't special case ignorable code points

2024-10-17T13:08:28Z

commit 5c26d2f1d3f5e4be3e196526bead29ecb139cf91 upstream. We don't need to handle them separately. Instead, just let them decompose/casefold to themselves. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Greg Kroah-Hartman

unicode: Add utf8_casefold_hash

2020-09-10T21:03:31Z

This adds a case insensitive hash function to allow taking the hash without needing to allocate a casefolded copy of the string. The existing d_hash implementations for casefolding allocate memory within rcu-walk, by avoiding it we can be more efficient and avoid worrying about a failed allocation. Signed-off-by: Daniel Rosenberg Reviewed-by: Gabriel Krisman Bertazi Reviewed-by: Eric Biggers Signed-off-by: Jaegeuk Kim

.gitignore: add SPDX License Identifier

2020-03-25T10:50:48Z

Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman

kbuild: rename hostprogs-y/always to hostprogs/always-y

2020-02-03T16:53:07Z

In old days, the "host-progs" syntax was used for specifying host programs. It was renamed to the current "hostprogs-y" in 2004. It is typically useful in scripts/Makefile because it allows Kbuild to selectively compile host programs based on the kernel configuration. This commit renames like follows: always -> always-y hostprogs-y -> hostprogs So, scripts/Makefile will look like this: always-$(CONFIG_BUILD_BIN2C) += ... always-$(CONFIG_KALLSYMS) += ... ... hostprogs := $(always-y) $(always-m) I think this makes more sense because a host program is always a host program, irrespective of the kernel configuration. We want to specify which ones to compile by CONFIG options, so always-y will be handier. The "always", "hostprogs-y", "hostprogs-m" will be kept for backward compatibility for a while. Signed-off-by: Masahiro Yamada

unicode: make array 'token' static const, makes object smaller

2019-09-17T15:48:24Z

Don't populate the array 'token' on the stack but instead make it static const. Makes the object code smaller by 234 bytes. Before: text data bss dec hex filename 5371 272 0 5643 160b fs/unicode/utf8-core.o After: text data bss dec hex filename 5041 368 0 5409 1521 fs/unicode/utf8-core.o (gcc version 9.2.1, amd64) Signed-off-by: Colin Ian King Reviewed-by: Theodore Ts'o Signed-off-by: Gabriel Krisman Bertazi

unicode: Move static keyword to the front of declarations

2019-09-17T15:48:11Z

Move the static keyword to the front of declarations of nfdi_test_data and nfdicf_test_data, and resolve the following compiler warnings that can be seen when building with warnings enabled (W=1): fs/unicode/utf8-selftest.c:38:1: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration] fs/unicode/utf8-selftest.c:92:1: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration] Signed-off-by: Krzysztof Wilczynski Signed-off-by: Gabriel Krisman Bertazi

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2019-07-11T04:06:01Z

Pull ext4 updates from Ted Ts'o: "Many bug fixes and cleanups, and an optimization for case-insensitive lookups" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix coverity warning on error path of filename setup ext4: replace ktype default_attrs with default_groups ext4: rename htree_inline_dir_to_tree() to ext4_inlinedir_to_tree() ext4: refactor initialize_dirent_tail() ext4: rename "dirent_csum" functions to use "dirblock" ext4: allow directory holes jbd2: drop declaration of journal_sync_buffer() ext4: use jbd2_inode dirty range scoping jbd2: introduce jbd2_inode dirty range scoping mm: add filemap_fdatawait_range_keep_errors() ext4: remove redundant assignment to node ext4: optimize case-insensitive lookups ext4: make __ext4_get_inode_loc plug ext4: clean up kerneldoc warnigns when building with W=1 ext4: only set project inherit bit for directory ext4: enforce the immutable flag on open files ext4: don't allow any modifications to an immutable file jbd2: fix typo in comment of journal_submit_inode_data_buffers jbd2: fix some print format mistakes ext4: gracefully handle ext4_break_layouts() failure during truncate

ext4: optimize case-insensitive lookups

2019-06-20T03:45:09Z

Temporarily cache a casefolded version of the file name under lookup in ext4_filename, to avoid repeatedly casefolding it. I got up to 30% speedup on lookups of large directories (>100k entries), depending on the length of the string under lookup. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Theodore Ts'o

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 294

2019-06-05T15:36:38Z

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation this program is distributed in the hope that it [would] be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 9 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.804956444@linutronix.de Signed-off-by: Greg Kroah-Hartman