[PATCH] experimental mutex-free wfs usage

[Eric Wong <normalperson@yhbt.net>]

patch sent to lltng-dev
ref: <20140818050254.GA13470@dcvr.yhbt.net>
---
 femalloc.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/femalloc.c b/femalloc.c
index 5ca49ec..fb0a04c 100644
--- a/femalloc.c
+++ b/femalloc.c
@@ -1103,7 +1103,7 @@ typedef struct malloc_segment* msegmentptr;
 
 struct malloc_state {
   struct     cds_list_head arena_node;
-  struct     cds_wfs_stack remote_free_stack;
+  struct     __cds_wfs_stack remote_free_stack;
   binmap_t   smallmap;
   binmap_t   treemap;
   size_t     dvsize;
@@ -2784,12 +2784,6 @@ static inline size_t internal_free(mstate m, void *mem)
   return 0;
 }
 
-/* mutex-ignorant version of _cds_wfs_init */
-static inline void
-nomtx_cds_wfs_init(struct cds_wfs_stack *s) {
-  s->head = CDS_WFS_END;
-}
-
 /* process remote free requests, returns usable bytes freed */
 static size_t remote_free_finish(mstate ms) {
   size_t usable_bytes_freed = 0;
@@ -3035,7 +3029,7 @@ static mstate init_user_mstate(char* tbase, size_t tsize) {
   mchunkptr msp = align_as_chunk(tbase);
   mstate m = (mstate)(chunk2mem(msp));
   memset(m, 0, msize);
-  nomtx_cds_wfs_init(&m->remote_free_stack);
+  ___cds_wfs_init(&m->remote_free_stack);
   msp->head = (msize|INUSE_BITS);
   m->seg.base = m->least_addr = tbase;
   m->seg.size = tsize;
-- 
EW