diff options
| author | Christopher Haster <chaster@utexas.edu> | 2018-10-23 01:58:47 +0300 |
|---|---|---|
| committer | Christopher Haster <chaster@utexas.edu> | 2018-10-23 01:58:47 +0300 |
| commit | dc507a7b5f73278604d1b11921acbec8f58d358a (patch) | |
| tree | 68bddc81820995e91e3fe67e5582f261630b4154 | |
| parent | 5b26c68ae2abae93b0fea4fca669765841dd1d2a (diff) | |
Changed required alignment of lookahead_size to 64 bits
This is to prepare for future compatibility with other implementations
of the allocator's lookahead that are under consideration. The most
promising design so far is a sort of segments-list data structure that
stores pointer+size pairs, requiring 64-bits of alignment.
Changing this now takes advantage of the major version to avoid a
compatibility break in the future. If we end up not changing the
allocator or don't need 64-bit alignment we can easily drop this
requirement without breaking anyone's code.
| -rw-r--r-- | lfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -3095,8 +3095,8 @@ static int lfs_init(lfs_t *lfs, const struct lfs_config *cfg) { lfs_cache_zero(lfs, &lfs->rcache); lfs_cache_zero(lfs, &lfs->pcache); - // setup lookahead, must be multiple of 32-bits - LFS_ASSERT(lfs->cfg->lookahead_size % 4 == 0); + // setup lookahead, must be multiple of 64-bits + LFS_ASSERT(lfs->cfg->lookahead_size % 8 == 0); LFS_ASSERT(lfs->cfg->lookahead_size > 0); if (lfs->cfg->lookahead_buffer) { lfs->free.buffer = lfs->cfg->lookahead_buffer; |