packfile: use hashmap_entry in delta_base_cache_entry
This hashmap_entry_init function is intended to take a hashmap_entry struct pointer, not a hashmap struct pointer. This was not noticed because hashmap_entry_init takes a "void *" arg instead of "struct hashmap_entry *", and the hashmap struct is larger and can be cast into a hashmap_entry struct without data corruption. This has the beneficial side effect of reducing the size of a delta_base_cache_entry from 104 bytes to 72 bytes on 64-bit systems. Signed-off-by: Eric Wong <e@80x24.org> Reviewed-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Eric Wong committed
Oct 6, 2019 at 23:30 UTC
d0a48a0a1d0df49af2e5fd6a80b0d84776c285aa
1 file changed
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-1
packfile.c
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-1
@@ -1361,7 +1361,7 @@ struct delta_base_cache_key {
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};
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struct delta_base_cache_entry {
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- struct hashmap hash;
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+ struct hashmap_entry ent;
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struct delta_base_cache_key key;
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struct list_head lru;
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void *data;