3 Commits

Author	SHA1	Message	Date
Daniel Rosenberg	d6f41217af	FROMLIST: unicode: Add utf8_casefold_hash ... This adds a case insensitive hash function to allow taking the hash without needing to allocate a casefolded copy of the string. Signed-off-by: Daniel Rosenberg <drosen@google.com> Test: Boots, /data/media is case insensitive Bug: 138322712 Link: https://lore.kernel.org/linux-f2fs-devel/20200208013552.241832-1-drosen@google.com/T/#t Change-Id: I43c7d38a8e22f4479397f35e6343bd326901cdba	2020-02-20 19:59:22 +00:00
Gabriel Krisman Bertazi	3ae72562ad	ext4: optimize case-insensitive lookups ... 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 <krisman@collabora.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>	2019-06-19 23:45:09 -04:00
Gabriel Krisman Bertazi	9d53690f0d	unicode: implement higher level API for string handling ... This patch integrates the utf8n patches with some higher level API to perform UTF-8 string comparison, normalization and casefolding operations. Implemented is a variation of NFD, and casefold is performed by doing full casefold on top of NFD. These algorithms are based on the core implemented by Olaf Weber from SGI. Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Signed-off-by: Theodore Ts'o <tytso@mit.edu>	2019-04-25 13:51:22 -04:00