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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2021-07-13 16:03:51 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:09:08 -0400 |
| commit | 8d3445878166ea726bc24326003ea7b9739cdc00 (patch) | |
| tree | f61f2cd9ca32d2f9b3cd174eedc6b4714956c6b6 /fs/bcachefs/alloc_background.c | |
| parent | 2e655e6de202d891f0232cfd3c56b8f8c176cf99 (diff) | |
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>
Diffstat (limited to 'fs/bcachefs/alloc_background.c')
| -rw-r--r-- | fs/bcachefs/alloc_background.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/bcachefs/alloc_background.c b/fs/bcachefs/alloc_background.c index fc20649b19cf..26aca7d3977b 100644 --- a/fs/bcachefs/alloc_background.c +++ b/fs/bcachefs/alloc_background.c @@ -130,7 +130,7 @@ static int bch2_alloc_unpack_v2(struct bkey_alloc_unpacked *out, #define x(_name, _bits) \ if (fieldnr < a.v->nr_fields) { \ - ret = bch2_varint_decode(in, end, &v); \ + ret = bch2_varint_decode_fast(in, end, &v); \ if (ret < 0) \ return ret; \ in += ret; \ @@ -166,7 +166,7 @@ static void bch2_alloc_pack_v2(struct bkey_alloc_buf *dst, nr_fields++; \ \ if (src._name) { \ - out += bch2_varint_encode(out, src._name); \ + out += bch2_varint_encode_fast(out, src._name); \ \ last_nonzero_field = out; \ last_nonzero_fieldnr = nr_fields; \ |