lihao/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-07-23 21:23:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Allow mutexes to take a lock ordering enum at construction.

Browse Source 
This lets us specify whether and how mutexes of the same rank are allowed to be
acquired.  Currently, we only allow two polices (only a single mutex at a given
rank at a time, and mutexes acquired in ascending order), but we can plausibly
allow more (e.g. the "release uncontended mutexes before blocking").
This commit is contained in:
David Goldblatt
2017-05-15 15:38:15 -07:00
committed by David Goldblatt
parent 6e62c62862
commit 26c792e61a
12 changed files with 75 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/extent.c
View File

@@ -195,7 +195,8 @@ ph_gen(, extent_heap_, extent_heap_t, extent_t, ph_link, extent_snad_comp)
bool
extents_init(tsdn_t *tsdn, extents_t *extents, extent_state_t state,
bool delay_coalesce) {
if (malloc_mutex_init(&extents->mtx, "extents", WITNESS_RANK_EXTENTS)) {
if (malloc_mutex_init(&extents->mtx, "extents", WITNESS_RANK_EXTENTS,
malloc_mutex_rank_exclusive)) {
return true;
}
for (unsigned i = 0; i < NPSIZES+1; i++) {