diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/beam/erl_ao_firstfit_alloc.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/erts/emulator/beam/erl_ao_firstfit_alloc.c b/erts/emulator/beam/erl_ao_firstfit_alloc.c index dbf930509f..5d7e6f94a8 100644 --- a/erts/emulator/beam/erl_ao_firstfit_alloc.c +++ b/erts/emulator/beam/erl_ao_firstfit_alloc.c @@ -103,7 +103,7 @@ typedef struct AOFF_Carrier_t_ AOFF_Carrier_t; struct AOFF_Carrier_t_ { Carrier_t crr; AOFF_RBTree_t rbt_node; /* My node in the carrier tree */ - AOFF_RBTree_t* root; /* Root of the block tree */ + AOFF_RBTree_t* root; /* Root of my block tree */ }; #define RBT_NODE_TO_MBC(PTR) ((AOFF_Carrier_t*)((char*)(PTR) - offsetof(AOFF_Carrier_t, rbt_node))) @@ -164,6 +164,7 @@ static ERTS_INLINE void lower_max_size(AOFF_RBTree_t *node, static ERTS_INLINE SWord cmp_blocks(int bestfit, AOFF_RBTree_t* lhs, AOFF_RBTree_t* rhs) { + ASSERT(lhs != rhs); ASSERT(!bestfit || FBLK_TO_MBC(&lhs->hdr) == FBLK_TO_MBC(&rhs->hdr)); if (bestfit) { SWord diff = (SWord)AOFF_BLK_SZ(lhs) - (SWord)AOFF_BLK_SZ(rhs); @@ -190,6 +191,7 @@ static Block_t* aoff_get_free_block(Allctr_t *, Uint, Block_t *, Uint, Uint32 fl static void aoff_link_free_block(Allctr_t *, Block_t*, Uint32 flags); static void aoff_unlink_free_block(Allctr_t *allctr, Block_t *del, Uint32 flags); static void aoff_creating_mbc(Allctr_t*, Carrier_t*, Uint32 flags); +static void aoff_destroying_mbc(Allctr_t*, Carrier_t*, Uint32 flags); static void aoff_add_mbc(Allctr_t*, Carrier_t*, Uint32 flags); static void aoff_remove_mbc(Allctr_t*, Carrier_t*, Uint32 flags); static UWord aoff_largest_fblk_in_mbc(Allctr_t*, Carrier_t*); @@ -206,22 +208,6 @@ static Eterm info_options(Allctr_t *, char *, int *, void *, Uint **, Uint *); static void init_atoms(void); - -#ifdef DEBUG - -/* Destroy all tree fields */ -#define DESTROY_TREE_NODE(N) \ - sys_memset((void *) (((Block_t *) (N)) + 1), \ - 0xff, \ - (sizeof(AOFF_RBTree_t) - sizeof(Block_t))) - -#else - -#define DESTROY_TREE_NODE(N) - -#endif - - static int atoms_initialized = 0; void @@ -267,7 +253,7 @@ erts_aoffalc_start(AOFFAllctr_t *alc, allctr->get_next_mbc_size = NULL; allctr->creating_mbc = aoff_creating_mbc; - allctr->destroying_mbc = aoff_remove_mbc; + allctr->destroying_mbc = aoff_destroying_mbc; allctr->add_mbc = aoff_add_mbc; allctr->remove_mbc = aoff_remove_mbc; allctr->largest_fblk_in_mbc = aoff_largest_fblk_in_mbc; @@ -376,7 +362,6 @@ replace(AOFF_RBTree_t **root, AOFF_RBTree_t *x, AOFF_RBTree_t *y) y->max_sz = x->max_sz; lower_max_size(y, NULL); - DESTROY_TREE_NODE(x); } static void @@ -669,7 +654,6 @@ rbt_delete(AOFF_RBTree_t** root, AOFF_RBTree_t* del) RBT_ASSERT(!null_x.right); } } - DESTROY_TREE_NODE(del); } static void @@ -683,7 +667,6 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags) ASSERT(allctr == blk_crr->crr.allctr); ASSERT(blk_crr->rbt_node.hdr.bhdr == (blk_crr->root ? blk_crr->root->max_sz : 0)); - HARD_CHECK_IS_MEMBER(((flags & ERTS_ALCU_FLG_SBMBC) ? alc->sbmbc_root : alc->mbc_root), &blk_crr->rbt_node); HARD_CHECK_TREE(&blk_crr->crr, alc->bf_within_carrier, blk_crr->root, 0); @@ -842,6 +825,19 @@ static void aoff_creating_mbc(Allctr_t *allctr, Carrier_t *carrier, Uint32 flags HARD_CHECK_TREE(NULL, 0, *root, 0); } +static void aoff_destroying_mbc(Allctr_t *allctr, Carrier_t *carrier, Uint32 flags) +{ + AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; + AOFF_Carrier_t *crr = (AOFF_Carrier_t*) carrier; + AOFF_RBTree_t *root = ((flags & ERTS_ALCU_FLG_SBMBC) + ? alc->sbmbc_root : alc->mbc_root); + + if (crr->rbt_node.parent || &crr->rbt_node == root) { + aoff_remove_mbc(allctr, carrier, flags); + } + /*else already removed */ +} + static void aoff_add_mbc(Allctr_t *allctr, Carrier_t *carrier, Uint32 flags) { AOFFAllctr_t *alc = (AOFFAllctr_t *) allctr; @@ -869,6 +865,10 @@ static void aoff_remove_mbc(Allctr_t *allctr, Carrier_t *carrier, Uint32 flags) HARD_CHECK_TREE(NULL, 0, *root, 0); rbt_delete(root, &crr->rbt_node); + crr->rbt_node.parent = NULL; + crr->rbt_node.left = NULL; + crr->rbt_node.right = NULL; + crr->rbt_node.max_sz = crr->rbt_node.hdr.bhdr; HARD_CHECK_TREE(NULL, 0, *root, 0); } |