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b1b72ac25f
Remove the ceph_base64_encode() and ceph_base64_decode() functions and replace their usage with the generic base64_encode() and base64_decode() helpers from lib/base64. This eliminates the custom implementation in Ceph, reduces code duplication, and relies on the shared Base64 code in lib. The helpers preserve RFC 3501-compliant Base64 encoding without padding, so there are no functional changes. This change also improves performance: encoding is about 2.7x faster and decoding achieves 43-52x speedups compared to the previous local implementation. Link: https://lkml.kernel.org/r/20251114060240.89965-1-409411716@gms.tku.edu.tw Signed-off-by: Guan-Chun Wu <409411716@gms.tku.edu.tw> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com> Cc: Keith Busch <kbusch@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagi@grimberg.me> Cc: Xiubo Li <xiubli@redhat.com> Cc: Ilya Dryomov <idryomov@gmail.com> Cc: Eric Biggers <ebiggers@kernel.org> Cc: "Theodore Y. Ts'o" <tytso@mit.edu> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: David Laight <david.laight.linux@gmail.com> Cc: Yu-Sheng Huang <home7438072@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>