bcachefs: Add safe versions of varint encode/decode
authorKent Overstreet <kent.overstreet@gmail.com>
Tue, 13 Jul 2021 20:03:51 +0000 (16:03 -0400)
committerKent Overstreet <kent.overstreet@linux.dev>
Sun, 22 Oct 2023 21:09:08 +0000 (17:09 -0400)
commit8d3445878166ea726bc24326003ea7b9739cdc00
treef61f2cd9ca32d2f9b3cd174eedc6b4714956c6b6
parent2e655e6de202d891f0232cfd3c56b8f8c176cf99
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>
fs/bcachefs/alloc_background.c
fs/bcachefs/inode.c
fs/bcachefs/varint.c
fs/bcachefs/varint.h