tree 70947df66e566caf2bd0bc776c4ca85417fc7747
parent e6c3948de2f8213010e584009d47e9bc0934b32c
author Daniel Rosenberg <drosen@google.com> 1594199554 -0700
committer Jaegeuk Kim <jaegeuk@kernel.org> 1599771811 -0700

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.

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 <drosen@google.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>