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untracked cache: avoid racy timestamps

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When a directory is updated within the same second that its timestamp
is last saved, we cannot realize the directory has been updated by
checking timestamps. Assume the worst (something is update). See
29e4d36 (Racy GIT - 2005-12-20) for more information.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2015-03-08 17:12:37 +07:00
committed by Junio C Hamano
parent 2bb4cda198
commit ed4efab1b1
3 changed files with 12 additions and 2 deletions
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cache.h
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@ -555,6 +555,8 @@ extern void fill_stat_data(struct stat_data *sd, struct stat *st);
* INODE_CHANGED, and DATA_CHANGED.
*/
extern int match_stat_data(const struct stat_data *sd, struct stat *st);
extern int match_stat_data_racy(const struct index_state *istate,
const struct stat_data *sd, struct stat *st);
extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);