3 Commits

Author	SHA1	Message	Date
Kent Overstreet	8ddef4d6cc	bcachefs: Fix a valgrind conditional jump ... Valgrind was complaining about a jump depending on uninitialized memory - we weren't, but this change makes the code less confusing for valgrind to follow. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>	2023-10-22 17:09:10 -04:00
Kent Overstreet	8d34458781	bcachefs: Add safe versions of varint encode/decode ... This adds safe versions of bch2_varint_(encode|decode) that don't read or write past the end of the buffer, or varint being encoded. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>	2023-10-22 17:09:08 -04:00
Kent Overstreet	a3e7226268	bcachefs: New varints ... Previous varint implementation used by the inode code was not nearly as fast as it could have been; partly because it was attempting to encode integers up to 96 bits (for timestamps) but this meant that encoding and decoding the length required a table lookup. Instead, we'll just encode timestamps greater than 64 bits as two separate varints; this will make decoding/encoding of inodes significantly faster overall. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>	2023-10-22 17:08:46 -04:00