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Name hash fixups: export (and rename) remove_hash_entry

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This makes the name hash removal function (which really just sets the
bit that disables lookups of it) available to external routines, and
makes read_cache_unmerged() use it when it drops an unmerged entry from
the index.

It's renamed to remove_index_entry(), and we drop the (unused) 'istate'
argument.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Linus Torvalds
2008-02-22 20:39:21 -08:00
committed by Junio C Hamano
parent a22c637124
commit d070e3a31b
3 changed files with 17 additions and 16 deletions
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14
cache.h
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@ -137,6 +137,20 @@ struct cache_entry {
#define CE_HASHED (0x100000)
#define CE_UNHASHED (0x200000)
/*
* We don't actually *remove* it, we can just mark it invalid so that
* we won't find it in lookups.
*
* Not only would we have to search the lists (simple enough), but
* we'd also have to rehash other hash buckets in case this makes the
* hash bucket empty (common). So it's much better to just mark
* it.
*/
static inline void remove_index_entry(struct cache_entry *ce)
{
ce->ce_flags |= CE_UNHASHED;
}
static inline unsigned create_ce_flags(size_t len, unsigned stage)
{
if (len >= CE_NAMEMASK)