diff options
Diffstat (limited to 'btt/devs.c')
| -rw-r--r-- | btt/devs.c | 46 |
1 files changed, 45 insertions, 1 deletions
@@ -25,6 +25,33 @@ #define DEV_HASH(dev) ((MAJOR(dev) ^ MINOR(dev)) & (N_DEV_HASH - 1)) struct list_head dev_heads[N_DEV_HASH]; +static inline void *dip_rb_mkhds(void) +{ + size_t len = N_IOP_TYPES * sizeof(struct rb_root); + return memset(malloc(len), 0, len); +} + +static void __destroy(struct rb_node *n) +{ + if (n) { + struct io *iop = rb_entry(n, struct io, rb_node); + + __destroy(n->rb_left); + __destroy(n->rb_right); + io_release(iop); + } +} + +static void __destroy_heads(struct rb_root *roots) +{ + int i; + + for (i = 0; i < N_IOP_TYPES; i++) + __destroy(roots[i].rb_node); + + free(roots); +} + #if defined(DEBUG) void __dump_rb_node(struct rb_node *n) { @@ -95,6 +122,22 @@ struct d_info *__dip_find(__u32 device) return NULL; } +void dip_exit(void) +{ + struct d_info *dip; + struct list_head *p, *q; + + list_for_each_safe(p, q, &all_devs) { + dip = list_entry(p, struct d_info, all_head); + + __destroy_heads(dip->heads); + region_exit(&dip->regions); + seeki_exit(dip->seek_handle); + bno_dump_exit(dip->bno_dump_handle); + free(dip); + } +} + struct d_info *dip_add(__u32 device, struct io *iop) { struct d_info *dip = __dip_find(device); @@ -103,11 +146,12 @@ struct d_info *dip_add(__u32 device, struct io *iop) dip = malloc(sizeof(struct d_info)); memset(dip, 0, sizeof(*dip)); dip->heads = dip_rb_mkhds(); - init_region(&dip->regions); + region_init(&dip->regions); dip->device = device; dip->last_q = (__u64)-1; dip->map = dev_map_find(device); dip->seek_handle = seeki_init(device); + dip->bno_dump_handle = bno_dump_init(device); latency_init(dip); list_add_tail(&dip->hash_head, &dev_heads[DEV_HASH(device)]); list_add_tail(&dip->all_head, &all_devs); |