diff options
Diffstat (limited to 'usr/src/uts/common/fs/zfs/sys/dmu.h')
| -rw-r--r-- | usr/src/uts/common/fs/zfs/sys/dmu.h | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/usr/src/uts/common/fs/zfs/sys/dmu.h b/usr/src/uts/common/fs/zfs/sys/dmu.h index b45e8822e1..3e3c654448 100644 --- a/usr/src/uts/common/fs/zfs/sys/dmu.h +++ b/usr/src/uts/common/fs/zfs/sys/dmu.h @@ -537,8 +537,14 @@ typedef struct dmu_buf_user { */ taskq_ent_t dbu_tqent; - /* This instance's eviction function pointer. */ - dmu_buf_evict_func_t *dbu_evict_func; + /* + * This instance's eviction function pointers. + * + * dbu_evict_func_sync is called synchronously and then + * dbu_evict_func_async is executed asynchronously on a taskq. + */ + dmu_buf_evict_func_t *dbu_evict_func_sync; + dmu_buf_evict_func_t *dbu_evict_func_async; #ifdef ZFS_DEBUG /* * Pointer to user's dbuf pointer. NULL for clients that do @@ -562,15 +568,19 @@ typedef struct dmu_buf_user { /* Very ugly, but it beats issuing suppression directives in many Makefiles. */ extern void dmu_buf_init_user(dmu_buf_user_t *dbu, dmu_buf_evict_func_t *evict_func, - dmu_buf_t **clear_on_evict_dbufp); + dmu_buf_evict_func_t *evict_func_async, dmu_buf_t **clear_on_evict_dbufp); #else /* __lint */ inline void -dmu_buf_init_user(dmu_buf_user_t *dbu, dmu_buf_evict_func_t *evict_func, - dmu_buf_t **clear_on_evict_dbufp) +dmu_buf_init_user(dmu_buf_user_t *dbu, dmu_buf_evict_func_t *evict_func_sync, + dmu_buf_evict_func_t *evict_func_async, dmu_buf_t **clear_on_evict_dbufp) { - ASSERT(dbu->dbu_evict_func == NULL); - ASSERT(evict_func != NULL); - dbu->dbu_evict_func = evict_func; + ASSERT(dbu->dbu_evict_func_sync == NULL); + ASSERT(dbu->dbu_evict_func_async == NULL); + + /* must have at least one evict func */ + IMPLY(evict_func_sync == NULL, evict_func_async != NULL); + dbu->dbu_evict_func_sync = evict_func_sync; + dbu->dbu_evict_func_async = evict_func_async; #ifdef ZFS_DEBUG dbu->dbu_clear_on_evict_dbufp = clear_on_evict_dbufp; #endif |