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mem-pool: simplify alignment calculation 

Use DIV_ROUND_UP in mem_pool_alloc() to round the allocation length to
the next multiple of GIT_MAX_ALIGNMENT instead of twiddling bits
explicitly.  This is shorter and clearer, to the point that we no longer
need the comment that explains what's being calculated.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2023-12-24 18:02:04 +01:00 committed by Junio C Hamano
parent 6cbae64000
commit c61740d607
1 changed files with 1 additions and 3 deletions
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mem-pool.c
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@ -89,9 +89,7 @@ void *mem_pool_alloc(struct mem_pool *pool, size_t len)
struct mp_block *p = NULL;
void *r;
/* round up to a 'GIT_MAX_ALIGNMENT' alignment */
if (len & (GIT_MAX_ALIGNMENT - 1))
len += GIT_MAX_ALIGNMENT - (len & (GIT_MAX_ALIGNMENT - 1));
len = DIV_ROUND_UP(len, GIT_MAX_ALIGNMENT) * GIT_MAX_ALIGNMENT;
if (pool->mp_block &&
pool->mp_block->end - pool->mp_block->next_free >= len)