BACKPORT: ext4: optimize match for casefolded encrypted dirs
[ Upstream commit 1ae98e295fa2577fb5e492200c58d10230e00e99 ] Matching names with casefolded encrypting directories requires decrypting entries to confirm case since we are case preserving. We can avoid needing to decrypt if our hash values don't match. Signed-off-by:Daniel Rosenberg <drosen@google.com> Link: https://lore.kernel.org/r/20210319073414.1381041-3-drosen@google.com Signed-off-by:
Theodore Ts'o <tytso@mit.edu> Change-Id: Ic74307e53dc59ec47575f33c56e291ccd137520d
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