romenskiy2012/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-04-14 22:51:50 +03:00
Code Issues Projects Releases Packages Wiki Activity

Fix a data race for large allocation stats counters.

Browse source 
Reported by Pat Lynch.
This commit is contained in:
Jason Evans 2013-10-21 15:00:06 -07:00
parent f1c3da8b02
commit 30e7cb1118
1 changed files with 4 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

5
src/tcache.c
View file

@ -260,8 +260,8 @@ tcache_arena_dissociate(tcache_t *tcache)
/* Unlink from list of extant tcaches. */
malloc_mutex_lock(&tcache->arena->lock);
ql_remove(&tcache->arena->tcache_ql, tcache, link);
malloc_mutex_unlock(&tcache->arena->lock);
tcache_stats_merge(tcache, tcache->arena);
malloc_mutex_unlock(&tcache->arena->lock);
}
}
@ -399,11 +399,14 @@ tcache_thread_cleanup(void *arg)
}
}
/* Caller must own arena->lock. */
void
tcache_stats_merge(tcache_t *tcache, arena_t *arena)
{
unsigned i;
cassert(config_stats);
/* Merge and reset tcache stats. */
for (i = 0; i < NBINS; i++) {
arena_bin_t *bin = &arena->bins[i];