diff options
11 files changed, 395 insertions, 389 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.c b/cddl/contrib/opensolaris/cmd/zdb/zdb.c index 83098e8..34912cd 100644 --- a/cddl/contrib/opensolaris/cmd/zdb/zdb.c +++ b/cddl/contrib/opensolaris/cmd/zdb/zdb.c @@ -1184,7 +1184,7 @@ visit_indirect(spa_t *spa, const dnode_phys_t *dnp, print_indirect(bp, zb, dnp); if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; int i; blkptr_t *cbp; int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c index 55cfa7c..975ab7a 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c @@ -618,7 +618,7 @@ struct arc_buf_hdr { arc_buf_hdr_t *b_hash_next; arc_buf_t *b_buf; - uint32_t b_flags; + arc_flags_t b_flags; uint32_t b_datacnt; arc_callback_t *b_acb; @@ -666,52 +666,26 @@ sysctl_vfs_zfs_arc_meta_limit(SYSCTL_HANDLER_ARGS) static arc_buf_t *arc_eviction_list; static kmutex_t arc_eviction_mtx; static arc_buf_hdr_t arc_eviction_hdr; -static void arc_get_data_buf(arc_buf_t *buf); -static void arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock); -static int arc_evict_needed(arc_buf_contents_t type); -static void arc_evict_ghost(arc_state_t *state, uint64_t spa, int64_t bytes); -#ifdef illumos -static void arc_buf_watch(arc_buf_t *buf); -#endif /* illumos */ - -static boolean_t l2arc_write_eligible(uint64_t spa_guid, arc_buf_hdr_t *ab); #define GHOST_STATE(state) \ ((state) == arc_mru_ghost || (state) == arc_mfu_ghost || \ (state) == arc_l2c_only) -/* - * Private ARC flags. These flags are private ARC only flags that will show up - * in b_flags in the arc_hdr_buf_t. Some flags are publicly declared, and can - * be passed in as arc_flags in things like arc_read. However, these flags - * should never be passed and should only be set by ARC code. When adding new - * public flags, make sure not to smash the private ones. - */ - -#define ARC_IN_HASH_TABLE (1 << 9) /* this buffer is hashed */ -#define ARC_IO_IN_PROGRESS (1 << 10) /* I/O in progress for buf */ -#define ARC_IO_ERROR (1 << 11) /* I/O failed for buf */ -#define ARC_FREED_IN_READ (1 << 12) /* buf freed while in read */ -#define ARC_BUF_AVAILABLE (1 << 13) /* block not in active use */ -#define ARC_INDIRECT (1 << 14) /* this is an indirect block */ -#define ARC_FREE_IN_PROGRESS (1 << 15) /* hdr about to be freed */ -#define ARC_L2_WRITING (1 << 16) /* L2ARC write in progress */ -#define ARC_L2_EVICTED (1 << 17) /* evicted during I/O */ -#define ARC_L2_WRITE_HEAD (1 << 18) /* head of write list */ - -#define HDR_IN_HASH_TABLE(hdr) ((hdr)->b_flags & ARC_IN_HASH_TABLE) -#define HDR_IO_IN_PROGRESS(hdr) ((hdr)->b_flags & ARC_IO_IN_PROGRESS) -#define HDR_IO_ERROR(hdr) ((hdr)->b_flags & ARC_IO_ERROR) -#define HDR_PREFETCH(hdr) ((hdr)->b_flags & ARC_PREFETCH) -#define HDR_FREED_IN_READ(hdr) ((hdr)->b_flags & ARC_FREED_IN_READ) -#define HDR_BUF_AVAILABLE(hdr) ((hdr)->b_flags & ARC_BUF_AVAILABLE) -#define HDR_FREE_IN_PROGRESS(hdr) ((hdr)->b_flags & ARC_FREE_IN_PROGRESS) -#define HDR_L2CACHE(hdr) ((hdr)->b_flags & ARC_L2CACHE) -#define HDR_L2_READING(hdr) ((hdr)->b_flags & ARC_IO_IN_PROGRESS && \ - (hdr)->b_l2hdr != NULL) -#define HDR_L2_WRITING(hdr) ((hdr)->b_flags & ARC_L2_WRITING) -#define HDR_L2_EVICTED(hdr) ((hdr)->b_flags & ARC_L2_EVICTED) -#define HDR_L2_WRITE_HEAD(hdr) ((hdr)->b_flags & ARC_L2_WRITE_HEAD) +#define HDR_IN_HASH_TABLE(hdr) ((hdr)->b_flags & ARC_FLAG_IN_HASH_TABLE) +#define HDR_IO_IN_PROGRESS(hdr) ((hdr)->b_flags & ARC_FLAG_IO_IN_PROGRESS) +#define HDR_IO_ERROR(hdr) ((hdr)->b_flags & ARC_FLAG_IO_ERROR) +#define HDR_PREFETCH(hdr) ((hdr)->b_flags & ARC_FLAG_PREFETCH) +#define HDR_FREED_IN_READ(hdr) ((hdr)->b_flags & ARC_FLAG_FREED_IN_READ) +#define HDR_BUF_AVAILABLE(hdr) ((hdr)->b_flags & ARC_FLAG_BUF_AVAILABLE) +#define HDR_FREE_IN_PROGRESS(hdr) \ + ((hdr)->b_flags & ARC_FLAG_FREE_IN_PROGRESS) +#define HDR_L2CACHE(hdr) ((hdr)->b_flags & ARC_FLAG_L2CACHE) +#define HDR_L2_READING(hdr) \ + ((hdr)->b_flags & ARC_FLAG_IO_IN_PROGRESS && \ + (hdr)->b_l2hdr != NULL) +#define HDR_L2_WRITING(hdr) ((hdr)->b_flags & ARC_FLAG_L2_WRITING) +#define HDR_L2_EVICTED(hdr) ((hdr)->b_flags & ARC_FLAG_L2_EVICTED) +#define HDR_L2_WRITE_HEAD(hdr) ((hdr)->b_flags & ARC_FLAG_L2_WRITE_HEAD) /* * Other sizes @@ -903,14 +877,20 @@ static kmutex_t l2arc_feed_thr_lock; static kcondvar_t l2arc_feed_thr_cv; static uint8_t l2arc_thread_exit; -static void l2arc_read_done(zio_t *zio); +static void arc_get_data_buf(arc_buf_t *); +static void arc_access(arc_buf_hdr_t *, kmutex_t *); +static int arc_evict_needed(arc_buf_contents_t); +static void arc_evict_ghost(arc_state_t *, uint64_t, int64_t); +static void arc_buf_watch(arc_buf_t *); + +static boolean_t l2arc_write_eligible(uint64_t, arc_buf_hdr_t *); +static void l2arc_read_done(zio_t *); static void l2arc_hdr_stat_add(void); static void l2arc_hdr_stat_remove(void); -static boolean_t l2arc_compress_buf(l2arc_buf_hdr_t *l2hdr); -static void l2arc_decompress_zio(zio_t *zio, arc_buf_hdr_t *hdr, - enum zio_compress c); -static void l2arc_release_cdata_buf(arc_buf_hdr_t *ab); +static boolean_t l2arc_compress_buf(l2arc_buf_hdr_t *); +static void l2arc_decompress_zio(zio_t *, arc_buf_hdr_t *, enum zio_compress); +static void l2arc_release_cdata_buf(arc_buf_hdr_t *); static uint64_t buf_hash(uint64_t spa, const dva_t *dva, uint64_t birth) @@ -955,14 +935,14 @@ buf_hash_find(uint64_t spa, const blkptr_t *bp, kmutex_t **lockp) uint64_t birth = BP_PHYSICAL_BIRTH(bp); uint64_t idx = BUF_HASH_INDEX(spa, dva, birth); kmutex_t *hash_lock = BUF_HASH_LOCK(idx); - arc_buf_hdr_t *buf; + arc_buf_hdr_t *hdr; mutex_enter(hash_lock); - for (buf = buf_hash_table.ht_table[idx]; buf != NULL; - buf = buf->b_hash_next) { - if (BUF_EQUAL(spa, dva, birth, buf)) { + for (hdr = buf_hash_table.ht_table[idx]; hdr != NULL; + hdr = hdr->b_hash_next) { + if (BUF_EQUAL(spa, dva, birth, hdr)) { *lockp = hash_lock; - return (buf); + return (hdr); } } mutex_exit(hash_lock); @@ -977,27 +957,27 @@ buf_hash_find(uint64_t spa, const blkptr_t *bp, kmutex_t **lockp) * Otherwise returns NULL. */ static arc_buf_hdr_t * -buf_hash_insert(arc_buf_hdr_t *buf, kmutex_t **lockp) +buf_hash_insert(arc_buf_hdr_t *hdr, kmutex_t **lockp) { - uint64_t idx = BUF_HASH_INDEX(buf->b_spa, &buf->b_dva, buf->b_birth); + uint64_t idx = BUF_HASH_INDEX(hdr->b_spa, &hdr->b_dva, hdr->b_birth); kmutex_t *hash_lock = BUF_HASH_LOCK(idx); - arc_buf_hdr_t *fbuf; + arc_buf_hdr_t *fhdr; uint32_t i; - ASSERT(!DVA_IS_EMPTY(&buf->b_dva)); - ASSERT(buf->b_birth != 0); - ASSERT(!HDR_IN_HASH_TABLE(buf)); + ASSERT(!DVA_IS_EMPTY(&hdr->b_dva)); + ASSERT(hdr->b_birth != 0); + ASSERT(!HDR_IN_HASH_TABLE(hdr)); *lockp = hash_lock; mutex_enter(hash_lock); - for (fbuf = buf_hash_table.ht_table[idx], i = 0; fbuf != NULL; - fbuf = fbuf->b_hash_next, i++) { - if (BUF_EQUAL(buf->b_spa, &buf->b_dva, buf->b_birth, fbuf)) - return (fbuf); + for (fhdr = buf_hash_table.ht_table[idx], i = 0; fhdr != NULL; + fhdr = fhdr->b_hash_next, i++) { + if (BUF_EQUAL(hdr->b_spa, &hdr->b_dva, hdr->b_birth, fhdr)) + return (fhdr); } - buf->b_hash_next = buf_hash_table.ht_table[idx]; - buf_hash_table.ht_table[idx] = buf; - buf->b_flags |= ARC_IN_HASH_TABLE; + hdr->b_hash_next = buf_hash_table.ht_table[idx]; + buf_hash_table.ht_table[idx] = hdr; + hdr->b_flags |= ARC_FLAG_IN_HASH_TABLE; /* collect some hash table performance data */ if (i > 0) { @@ -1015,22 +995,22 @@ buf_hash_insert(arc_buf_hdr_t *buf, kmutex_t **lockp) } static void -buf_hash_remove(arc_buf_hdr_t *buf) +buf_hash_remove(arc_buf_hdr_t *hdr) { - arc_buf_hdr_t *fbuf, **bufp; - uint64_t idx = BUF_HASH_INDEX(buf->b_spa, &buf->b_dva, buf->b_birth); + arc_buf_hdr_t *fhdr, **hdrp; + uint64_t idx = BUF_HASH_INDEX(hdr->b_spa, &hdr->b_dva, hdr->b_birth); ASSERT(MUTEX_HELD(BUF_HASH_LOCK(idx))); - ASSERT(HDR_IN_HASH_TABLE(buf)); + ASSERT(HDR_IN_HASH_TABLE(hdr)); - bufp = &buf_hash_table.ht_table[idx]; - while ((fbuf = *bufp) != buf) { - ASSERT(fbuf != NULL); - bufp = &fbuf->b_hash_next; + hdrp = &buf_hash_table.ht_table[idx]; + while ((fhdr = *hdrp) != hdr) { + ASSERT(fhdr != NULL); + hdrp = &fhdr->b_hash_next; } - *bufp = buf->b_hash_next; - buf->b_hash_next = NULL; - buf->b_flags &= ~ARC_IN_HASH_TABLE; + *hdrp = hdr->b_hash_next; + hdr->b_hash_next = NULL; + hdr->b_flags &= ~ARC_FLAG_IN_HASH_TABLE; /* collect some hash table performance data */ ARCSTAT_BUMPDOWN(arcstat_hash_elements); @@ -1067,12 +1047,12 @@ buf_fini(void) static int hdr_cons(void *vbuf, void *unused, int kmflag) { - arc_buf_hdr_t *buf = vbuf; + arc_buf_hdr_t *hdr = vbuf; - bzero(buf, sizeof (arc_buf_hdr_t)); - refcount_create(&buf->b_refcnt); - cv_init(&buf->b_cv, NULL, CV_DEFAULT, NULL); - mutex_init(&buf->b_freeze_lock, NULL, MUTEX_DEFAULT, NULL); + bzero(hdr, sizeof (arc_buf_hdr_t)); + refcount_create(&hdr->b_refcnt); + cv_init(&hdr->b_cv, NULL, CV_DEFAULT, NULL); + mutex_init(&hdr->b_freeze_lock, NULL, MUTEX_DEFAULT, NULL); arc_space_consume(sizeof (arc_buf_hdr_t), ARC_SPACE_HDRS); return (0); @@ -1099,12 +1079,12 @@ buf_cons(void *vbuf, void *unused, int kmflag) static void hdr_dest(void *vbuf, void *unused) { - arc_buf_hdr_t *buf = vbuf; + arc_buf_hdr_t *hdr = vbuf; - ASSERT(BUF_EMPTY(buf)); - refcount_destroy(&buf->b_refcnt); - cv_destroy(&buf->b_cv); - mutex_destroy(&buf->b_freeze_lock); + ASSERT(BUF_EMPTY(hdr)); + refcount_destroy(&hdr->b_refcnt); + cv_destroy(&hdr->b_cv); + mutex_destroy(&hdr->b_freeze_lock); arc_space_return(sizeof (arc_buf_hdr_t), ARC_SPACE_HDRS); } @@ -1186,7 +1166,7 @@ arc_cksum_verify(arc_buf_t *buf) mutex_enter(&buf->b_hdr->b_freeze_lock); if (buf->b_hdr->b_freeze_cksum == NULL || - (buf->b_hdr->b_flags & ARC_IO_ERROR)) { + (buf->b_hdr->b_flags & ARC_FLAG_IO_ERROR)) { mutex_exit(&buf->b_hdr->b_freeze_lock); return; } @@ -1281,7 +1261,7 @@ arc_buf_thaw(arc_buf_t *buf) if (zfs_flags & ZFS_DEBUG_MODIFY) { if (buf->b_hdr->b_state != arc_anon) panic("modifying non-anon buffer!"); - if (buf->b_hdr->b_flags & ARC_IO_IN_PROGRESS) + if (buf->b_hdr->b_flags & ARC_FLAG_IO_IN_PROGRESS) panic("modifying buffer while i/o in progress!"); arc_cksum_verify(buf); } @@ -1324,11 +1304,11 @@ arc_buf_freeze(arc_buf_t *buf) } static void -get_buf_info(arc_buf_hdr_t *ab, arc_state_t *state, list_t **list, kmutex_t **lock) +get_buf_info(arc_buf_hdr_t *hdr, arc_state_t *state, list_t **list, kmutex_t **lock) { - uint64_t buf_hashid = buf_hash(ab->b_spa, &ab->b_dva, ab->b_birth); + uint64_t buf_hashid = buf_hash(hdr->b_spa, &hdr->b_dva, hdr->b_birth); - if (ab->b_type == ARC_BUFC_METADATA) + if (hdr->b_type == ARC_BUFC_METADATA) buf_hashid &= (ARC_BUFC_NUMMETADATALISTS - 1); else { buf_hashid &= (ARC_BUFC_NUMDATALISTS - 1); @@ -1341,59 +1321,59 @@ get_buf_info(arc_buf_hdr_t *ab, arc_state_t *state, list_t **list, kmutex_t **lo static void -add_reference(arc_buf_hdr_t *ab, kmutex_t *hash_lock, void *tag) +add_reference(arc_buf_hdr_t *hdr, kmutex_t *hash_lock, void *tag) { ASSERT(MUTEX_HELD(hash_lock)); - if ((refcount_add(&ab->b_refcnt, tag) == 1) && - (ab->b_state != arc_anon)) { - uint64_t delta = ab->b_size * ab->b_datacnt; - uint64_t *size = &ab->b_state->arcs_lsize[ab->b_type]; + if ((refcount_add(&hdr->b_refcnt, tag) == 1) && + (hdr->b_state != arc_anon)) { + uint64_t delta = hdr->b_size * hdr->b_datacnt; + uint64_t *size = &hdr->b_state->arcs_lsize[hdr->b_type]; list_t *list; kmutex_t *lock; - get_buf_info(ab, ab->b_state, &list, &lock); + get_buf_info(hdr, hdr->b_state, &list, &lock); ASSERT(!MUTEX_HELD(lock)); mutex_enter(lock); - ASSERT(list_link_active(&ab->b_arc_node)); - list_remove(list, ab); - if (GHOST_STATE(ab->b_state)) { - ASSERT0(ab->b_datacnt); - ASSERT3P(ab->b_buf, ==, NULL); - delta = ab->b_size; + ASSERT(list_link_active(&hdr->b_arc_node)); + list_remove(list, hdr); + if (GHOST_STATE(hdr->b_state)) { + ASSERT0(hdr->b_datacnt); + ASSERT3P(hdr->b_buf, ==, NULL); + delta = hdr->b_size; } ASSERT(delta > 0); ASSERT3U(*size, >=, delta); atomic_add_64(size, -delta); mutex_exit(lock); /* remove the prefetch flag if we get a reference */ - if (ab->b_flags & ARC_PREFETCH) - ab->b_flags &= ~ARC_PREFETCH; + if (hdr->b_flags & ARC_FLAG_PREFETCH) + hdr->b_flags &= ~ARC_FLAG_PREFETCH; } } static int -remove_reference(arc_buf_hdr_t *ab, kmutex_t *hash_lock, void *tag) +remove_reference(arc_buf_hdr_t *hdr, kmutex_t *hash_lock, void *tag) { int cnt; - arc_state_t *state = ab->b_state; + arc_state_t *state = hdr->b_state; ASSERT(state == arc_anon || MUTEX_HELD(hash_lock)); ASSERT(!GHOST_STATE(state)); - if (((cnt = refcount_remove(&ab->b_refcnt, tag)) == 0) && + if (((cnt = refcount_remove(&hdr->b_refcnt, tag)) == 0) && (state != arc_anon)) { - uint64_t *size = &state->arcs_lsize[ab->b_type]; + uint64_t *size = &state->arcs_lsize[hdr->b_type]; list_t *list; kmutex_t *lock; - get_buf_info(ab, state, &list, &lock); + get_buf_info(hdr, state, &list, &lock); ASSERT(!MUTEX_HELD(lock)); mutex_enter(lock); - ASSERT(!list_link_active(&ab->b_arc_node)); - list_insert_head(list, ab); - ASSERT(ab->b_datacnt > 0); - atomic_add_64(size, ab->b_size * ab->b_datacnt); + ASSERT(!list_link_active(&hdr->b_arc_node)); + list_insert_head(list, hdr); + ASSERT(hdr->b_datacnt > 0); + atomic_add_64(size, hdr->b_size * hdr->b_datacnt); mutex_exit(lock); } return (cnt); @@ -1404,21 +1384,22 @@ remove_reference(arc_buf_hdr_t *ab, kmutex_t *hash_lock, void *tag) * for the buffer must be held by the caller. */ static void -arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) +arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *hdr, + kmutex_t *hash_lock) { - arc_state_t *old_state = ab->b_state; - int64_t refcnt = refcount_count(&ab->b_refcnt); + arc_state_t *old_state = hdr->b_state; + int64_t refcnt = refcount_count(&hdr->b_refcnt); uint64_t from_delta, to_delta; list_t *list; kmutex_t *lock; ASSERT(MUTEX_HELD(hash_lock)); ASSERT3P(new_state, !=, old_state); - ASSERT(refcnt == 0 || ab->b_datacnt > 0); - ASSERT(ab->b_datacnt == 0 || !GHOST_STATE(new_state)); - ASSERT(ab->b_datacnt <= 1 || old_state != arc_anon); + ASSERT(refcnt == 0 || hdr->b_datacnt > 0); + ASSERT(hdr->b_datacnt == 0 || !GHOST_STATE(new_state)); + ASSERT(hdr->b_datacnt <= 1 || old_state != arc_anon); - from_delta = to_delta = ab->b_datacnt * ab->b_size; + from_delta = to_delta = hdr->b_datacnt * hdr->b_size; /* * If this buffer is evictable, transfer it from the @@ -1427,24 +1408,24 @@ arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) if (refcnt == 0) { if (old_state != arc_anon) { int use_mutex; - uint64_t *size = &old_state->arcs_lsize[ab->b_type]; + uint64_t *size = &old_state->arcs_lsize[hdr->b_type]; - get_buf_info(ab, old_state, &list, &lock); + get_buf_info(hdr, old_state, &list, &lock); use_mutex = !MUTEX_HELD(lock); if (use_mutex) mutex_enter(lock); - ASSERT(list_link_active(&ab->b_arc_node)); - list_remove(list, ab); + ASSERT(list_link_active(&hdr->b_arc_node)); + list_remove(list, hdr); /* * If prefetching out of the ghost cache, * we will have a non-zero datacnt. */ - if (GHOST_STATE(old_state) && ab->b_datacnt == 0) { + if (GHOST_STATE(old_state) && hdr->b_datacnt == 0) { /* ghost elements have a ghost size */ - ASSERT(ab->b_buf == NULL); - from_delta = ab->b_size; + ASSERT(hdr->b_buf == NULL); + from_delta = hdr->b_size; } ASSERT3U(*size, >=, from_delta); atomic_add_64(size, -from_delta); @@ -1454,20 +1435,20 @@ arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) } if (new_state != arc_anon) { int use_mutex; - uint64_t *size = &new_state->arcs_lsize[ab->b_type]; + uint64_t *size = &new_state->arcs_lsize[hdr->b_type]; - get_buf_info(ab, new_state, &list, &lock); + get_buf_info(hdr, new_state, &list, &lock); use_mutex = !MUTEX_HELD(lock); if (use_mutex) mutex_enter(lock); - list_insert_head(list, ab); + list_insert_head(list, hdr); /* ghost elements have a ghost size */ if (GHOST_STATE(new_state)) { - ASSERT(ab->b_datacnt == 0); - ASSERT(ab->b_buf == NULL); - to_delta = ab->b_size; + ASSERT(hdr->b_datacnt == 0); + ASSERT(hdr->b_buf == NULL); + to_delta = hdr->b_size; } atomic_add_64(size, to_delta); @@ -1476,9 +1457,9 @@ arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) } } - ASSERT(!BUF_EMPTY(ab)); - if (new_state == arc_anon && HDR_IN_HASH_TABLE(ab)) - buf_hash_remove(ab); + ASSERT(!BUF_EMPTY(hdr)); + if (new_state == arc_anon && HDR_IN_HASH_TABLE(hdr)) + buf_hash_remove(hdr); /* adjust state sizes */ if (to_delta) @@ -1487,7 +1468,7 @@ arc_change_state(arc_state_t *new_state, arc_buf_hdr_t *ab, kmutex_t *hash_lock) ASSERT3U(old_state->arcs_size, >=, from_delta); atomic_add_64(&old_state->arcs_size, -from_delta); } - ab->b_state = new_state; + hdr->b_state = new_state; /* adjust l2arc hdr stats */ if (new_state == arc_l2c_only) @@ -1689,7 +1670,7 @@ arc_buf_add_ref(arc_buf_t *buf, void* tag) arc_access(hdr, hash_lock); mutex_exit(hash_lock); ARCSTAT_BUMP(arcstat_hits); - ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_PREFETCH), + ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_FLAG_PREFETCH), demand, prefetch, hdr->b_type != ARC_BUFC_METADATA, data, metadata, hits); } @@ -1920,7 +1901,7 @@ arc_buf_free(arc_buf_t *buf, void *tag) } else { ASSERT(buf == hdr->b_buf); ASSERT(buf->b_efunc == NULL); - hdr->b_flags |= ARC_BUF_AVAILABLE; + hdr->b_flags |= ARC_FLAG_BUF_AVAILABLE; } mutex_exit(hash_lock); } else if (HDR_IO_IN_PROGRESS(hdr)) { @@ -1971,7 +1952,7 @@ arc_buf_remove_ref(arc_buf_t *buf, void* tag) } else if (no_callback) { ASSERT(hdr->b_buf == buf && buf->b_next == NULL); ASSERT(buf->b_efunc == NULL); - hdr->b_flags |= ARC_BUF_AVAILABLE; + hdr->b_flags |= ARC_FLAG_BUF_AVAILABLE; } ASSERT(no_callback || hdr->b_datacnt > 1 || refcount_is_zero(&hdr->b_refcnt)); @@ -2047,7 +2028,7 @@ arc_evict(arc_state_t *state, uint64_t spa, int64_t bytes, boolean_t recycle, arc_state_t *evicted_state; uint64_t bytes_evicted = 0, skipped = 0, missed = 0; int64_t bytes_remaining; - arc_buf_hdr_t *ab, *ab_prev = NULL; + arc_buf_hdr_t *hdr, *hdr_prev = NULL; list_t *evicted_list, *list, *evicted_list_start, *list_start; kmutex_t *lock, *evicted_lock; kmutex_t *hash_lock; @@ -2130,25 +2111,25 @@ evict_start: mutex_enter(lock); mutex_enter(evicted_lock); - for (ab = list_tail(list); ab; ab = ab_prev) { - ab_prev = list_prev(list, ab); - bytes_remaining -= (ab->b_size * ab->b_datacnt); + for (hdr = list_tail(list); hdr; hdr = hdr_prev) { + hdr_prev = list_prev(list, hdr); + bytes_remaining -= (hdr->b_size * hdr->b_datacnt); /* prefetch buffers have a minimum lifespan */ - if (HDR_IO_IN_PROGRESS(ab) || - (spa && ab->b_spa != spa) || - (ab->b_flags & (ARC_PREFETCH|ARC_INDIRECT) && - ddi_get_lbolt() - ab->b_arc_access < + if (HDR_IO_IN_PROGRESS(hdr) || + (spa && hdr->b_spa != spa) || + (hdr->b_flags & (ARC_FLAG_PREFETCH | ARC_FLAG_INDIRECT) && + ddi_get_lbolt() - hdr->b_arc_access < arc_min_prefetch_lifespan)) { skipped++; continue; } /* "lookahead" for better eviction candidate */ - if (recycle && ab->b_size != bytes && - ab_prev && ab_prev->b_size == bytes) + if (recycle && hdr->b_size != bytes && + hdr_prev && hdr_prev->b_size == bytes) continue; /* ignore markers */ - if (ab->b_spa == 0) + if (hdr->b_spa == 0) continue; /* @@ -2161,34 +2142,34 @@ evict_start: * the hot code path, so don't sleep. */ if (!recycle && count++ > arc_evict_iterations) { - list_insert_after(list, ab, &marker); + list_insert_after(list, hdr, &marker); mutex_exit(evicted_lock); mutex_exit(lock); kpreempt(KPREEMPT_SYNC); mutex_enter(lock); mutex_enter(evicted_lock); - ab_prev = list_prev(list, &marker); + hdr_prev = list_prev(list, &marker); list_remove(list, &marker); count = 0; continue; } - hash_lock = HDR_LOCK(ab); + hash_lock = HDR_LOCK(hdr); have_lock = MUTEX_HELD(hash_lock); if (have_lock || mutex_tryenter(hash_lock)) { - ASSERT0(refcount_count(&ab->b_refcnt)); - ASSERT(ab->b_datacnt > 0); - while (ab->b_buf) { - arc_buf_t *buf = ab->b_buf; + ASSERT0(refcount_count(&hdr->b_refcnt)); + ASSERT(hdr->b_datacnt > 0); + while (hdr->b_buf) { + arc_buf_t *buf = hdr->b_buf; if (!mutex_tryenter(&buf->b_evict_lock)) { missed += 1; break; } if (buf->b_data) { - bytes_evicted += ab->b_size; - if (recycle && ab->b_type == type && - ab->b_size == bytes && - !HDR_L2_WRITING(ab)) { + bytes_evicted += hdr->b_size; + if (recycle && hdr->b_type == type && + hdr->b_size == bytes && + !HDR_L2_WRITING(hdr)) { stolen = buf->b_data; recycle = FALSE; } @@ -2197,7 +2178,7 @@ evict_start: mutex_enter(&arc_eviction_mtx); arc_buf_destroy(buf, buf->b_data == stolen, FALSE); - ab->b_buf = buf->b_next; + hdr->b_buf = buf->b_next; buf->b_hdr = &arc_eviction_hdr; buf->b_next = arc_eviction_list; arc_eviction_list = buf; @@ -2210,26 +2191,26 @@ evict_start: } } - if (ab->b_l2hdr) { + if (hdr->b_l2hdr) { ARCSTAT_INCR(arcstat_evict_l2_cached, - ab->b_size); + hdr->b_size); } else { - if (l2arc_write_eligible(ab->b_spa, ab)) { + if (l2arc_write_eligible(hdr->b_spa, hdr)) { ARCSTAT_INCR(arcstat_evict_l2_eligible, - ab->b_size); + hdr->b_size); } else { ARCSTAT_INCR( arcstat_evict_l2_ineligible, - ab->b_size); + hdr->b_size); } } - if (ab->b_datacnt == 0) { - arc_change_state(evicted_state, ab, hash_lock); - ASSERT(HDR_IN_HASH_TABLE(ab)); - ab->b_flags |= ARC_IN_HASH_TABLE; - ab->b_flags &= ~ARC_BUF_AVAILABLE; - DTRACE_PROBE1(arc__evict, arc_buf_hdr_t *, ab); + if (hdr->b_datacnt == 0) { + arc_change_state(evicted_state, hdr, hash_lock); + ASSERT(HDR_IN_HASH_TABLE(hdr)); + hdr->b_flags |= ARC_FLAG_IN_HASH_TABLE; + hdr->b_flags &= ~ARC_FLAG_BUF_AVAILABLE; + DTRACE_PROBE1(arc__evict, arc_buf_hdr_t *, hdr); } if (!have_lock) mutex_exit(hash_lock); @@ -2290,7 +2271,7 @@ evict_start: static void arc_evict_ghost(arc_state_t *state, uint64_t spa, int64_t bytes) { - arc_buf_hdr_t *ab, *ab_prev; + arc_buf_hdr_t *hdr, *hdr_prev; arc_buf_hdr_t marker = { 0 }; list_t *list, *list_start; kmutex_t *hash_lock, *lock; @@ -2315,18 +2296,18 @@ evict_start: lock = ARCS_LOCK(state, idx + offset); mutex_enter(lock); - for (ab = list_tail(list); ab; ab = ab_prev) { - ab_prev = list_prev(list, ab); - if (ab->b_type > ARC_BUFC_NUMTYPES) - panic("invalid ab=%p", (void *)ab); - if (spa && ab->b_spa != spa) + for (hdr = list_tail(list); hdr; hdr = hdr_prev) { + hdr_prev = list_prev(list, hdr); + if (hdr->b_type > ARC_BUFC_NUMTYPES) + panic("invalid hdr=%p", (void *)hdr); + if (spa && hdr->b_spa != spa) continue; /* ignore markers */ - if (ab->b_spa == 0) + if (hdr->b_spa == 0) continue; - hash_lock = HDR_LOCK(ab); + hash_lock = HDR_LOCK(hdr); /* caller may be trying to modify this buffer, skip it */ if (MUTEX_HELD(hash_lock)) continue; @@ -2338,35 +2319,35 @@ evict_start: * before reacquiring the lock. */ if (count++ > arc_evict_iterations) { - list_insert_after(list, ab, &marker); + list_insert_after(list, hdr, &marker); mutex_exit(lock); kpreempt(KPREEMPT_SYNC); mutex_enter(lock); - ab_prev = list_prev(list, &marker); + hdr_prev = list_prev(list, &marker); list_remove(list, &marker); count = 0; continue; } if (mutex_tryenter(hash_lock)) { - ASSERT(!HDR_IO_IN_PROGRESS(ab)); - ASSERT(ab->b_buf == NULL); + ASSERT(!HDR_IO_IN_PROGRESS(hdr)); + ASSERT(hdr->b_buf == NULL); ARCSTAT_BUMP(arcstat_deleted); - bytes_deleted += ab->b_size; + bytes_deleted += hdr->b_size; - if (ab->b_l2hdr != NULL) { + if (hdr->b_l2hdr != NULL) { /* * This buffer is cached on the 2nd Level ARC; * don't destroy the header. */ - arc_change_state(arc_l2c_only, ab, hash_lock); + arc_change_state(arc_l2c_only, hdr, hash_lock); mutex_exit(hash_lock); } else { - arc_change_state(arc_anon, ab, hash_lock); + arc_change_state(arc_anon, hdr, hash_lock); mutex_exit(hash_lock); - arc_hdr_destroy(ab); + arc_hdr_destroy(hdr); } - DTRACE_PROBE1(arc__delete, arc_buf_hdr_t *, ab); + DTRACE_PROBE1(arc__delete, arc_buf_hdr_t *, hdr); if (bytes >= 0 && bytes_deleted >= bytes) break; } else if (bytes < 0) { @@ -2375,12 +2356,12 @@ evict_start: * hash lock to become available. Once its * available, restart from where we left off. */ - list_insert_after(list, ab, &marker); + list_insert_after(list, hdr, &marker); mutex_exit(lock); mutex_enter(hash_lock); mutex_exit(hash_lock); mutex_enter(lock); - ab_prev = list_prev(list, &marker); + hdr_prev = list_prev(list, &marker); list_remove(list, &marker); } else { bufs_skipped += 1; @@ -2965,7 +2946,8 @@ arc_get_data_buf(arc_buf_t *buf) * will end up on the mru list; so steal space from there. */ if (state == arc_mfu_ghost) - state = buf->b_hdr->b_flags & ARC_PREFETCH ? arc_mru : arc_mfu; + state = buf->b_hdr->b_flags & ARC_FLAG_PREFETCH ? + arc_mru : arc_mfu; else if (state == arc_mru_ghost) state = arc_mru; @@ -3021,25 +3003,25 @@ out: * NOTE: the hash lock is dropped in this function. */ static void -arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) +arc_access(arc_buf_hdr_t *hdr, kmutex_t *hash_lock) { clock_t now; ASSERT(MUTEX_HELD(hash_lock)); - if (buf->b_state == arc_anon) { + if (hdr->b_state == arc_anon) { /* * This buffer is not in the cache, and does not * appear in our "ghost" list. Add the new buffer * to the MRU state. */ - ASSERT(buf->b_arc_access == 0); - buf->b_arc_access = ddi_get_lbolt(); - DTRACE_PROBE1(new_state__mru, arc_buf_hdr_t *, buf); - arc_change_state(arc_mru, buf, hash_lock); + ASSERT(hdr->b_arc_access == 0); + hdr->b_arc_access = ddi_get_lbolt(); + DTRACE_PROBE1(new_state__mru, arc_buf_hdr_t *, hdr); + arc_change_state(arc_mru, hdr, hash_lock); - } else if (buf->b_state == arc_mru) { + } else if (hdr->b_state == arc_mru) { now = ddi_get_lbolt(); /* @@ -3050,14 +3032,14 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) * - move the buffer to the head of the list if this is * another prefetch (to make it less likely to be evicted). */ - if ((buf->b_flags & ARC_PREFETCH) != 0) { - if (refcount_count(&buf->b_refcnt) == 0) { - ASSERT(list_link_active(&buf->b_arc_node)); + if ((hdr->b_flags & ARC_FLAG_PREFETCH) != 0) { + if (refcount_count(&hdr->b_refcnt) == 0) { + ASSERT(list_link_active(&hdr->b_arc_node)); } else { - buf->b_flags &= ~ARC_PREFETCH; + hdr->b_flags &= ~ARC_FLAG_PREFETCH; ARCSTAT_BUMP(arcstat_mru_hits); } - buf->b_arc_access = now; + hdr->b_arc_access = now; return; } @@ -3066,18 +3048,18 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) * but it is still in the cache. Move it to the MFU * state. */ - if (now > buf->b_arc_access + ARC_MINTIME) { + if (now > hdr->b_arc_access + ARC_MINTIME) { /* * More than 125ms have passed since we * instantiated this buffer. Move it to the * most frequently used state. */ - buf->b_arc_access = now; - DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); - arc_change_state(arc_mfu, buf, hash_lock); + hdr->b_arc_access = now; + DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr); + arc_change_state(arc_mfu, hdr, hash_lock); } ARCSTAT_BUMP(arcstat_mru_hits); - } else if (buf->b_state == arc_mru_ghost) { + } else if (hdr->b_state == arc_mru_ghost) { arc_state_t *new_state; /* * This buffer has been "accessed" recently, but @@ -3085,21 +3067,21 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) * MFU state. */ - if (buf->b_flags & ARC_PREFETCH) { + if (hdr->b_flags & ARC_FLAG_PREFETCH) { new_state = arc_mru; - if (refcount_count(&buf->b_refcnt) > 0) - buf->b_flags &= ~ARC_PREFETCH; - DTRACE_PROBE1(new_state__mru, arc_buf_hdr_t *, buf); + if (refcount_count(&hdr->b_refcnt) > 0) + hdr->b_flags &= ~ARC_FLAG_PREFETCH; + DTRACE_PROBE1(new_state__mru, arc_buf_hdr_t *, hdr); } else { new_state = arc_mfu; - DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); + DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr); } - buf->b_arc_access = ddi_get_lbolt(); - arc_change_state(new_state, buf, hash_lock); + hdr->b_arc_access = ddi_get_lbolt(); + arc_change_state(new_state, hdr, hash_lock); ARCSTAT_BUMP(arcstat_mru_ghost_hits); - } else if (buf->b_state == arc_mfu) { + } else if (hdr->b_state == arc_mfu) { /* * This buffer has been accessed more than once and is * still in the cache. Keep it in the MFU state. @@ -3109,13 +3091,13 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) * If it was a prefetch, we will explicitly move it to * the head of the list now. */ - if ((buf->b_flags & ARC_PREFETCH) != 0) { - ASSERT(refcount_count(&buf->b_refcnt) == 0); - ASSERT(list_link_active(&buf->b_arc_node)); + if ((hdr->b_flags & ARC_FLAG_PREFETCH) != 0) { + ASSERT(refcount_count(&hdr->b_refcnt) == 0); + ASSERT(list_link_active(&hdr->b_arc_node)); } ARCSTAT_BUMP(arcstat_mfu_hits); - buf->b_arc_access = ddi_get_lbolt(); - } else if (buf->b_state == arc_mfu_ghost) { + hdr->b_arc_access = ddi_get_lbolt(); + } else if (hdr->b_state == arc_mfu_ghost) { arc_state_t *new_state = arc_mfu; /* * This buffer has been accessed more than once but has @@ -3123,28 +3105,28 @@ arc_access(arc_buf_hdr_t *buf, kmutex_t *hash_lock) * MFU state. */ - if (buf->b_flags & ARC_PREFETCH) { + if (hdr->b_flags & ARC_FLAG_PREFETCH) { /* * This is a prefetch access... * move this block back to the MRU state. */ - ASSERT0(refcount_count(&buf->b_refcnt)); + ASSERT0(refcount_count(&hdr->b_refcnt)); new_state = arc_mru; } - buf->b_arc_access = ddi_get_lbolt(); - DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); - arc_change_state(new_state, buf, hash_lock); + hdr->b_arc_access = ddi_get_lbolt(); + DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr); + arc_change_state(new_state, hdr, hash_lock); ARCSTAT_BUMP(arcstat_mfu_ghost_hits); - } else if (buf->b_state == arc_l2c_only) { + } else if (hdr->b_state == arc_l2c_only) { /* * This buffer is on the 2nd Level ARC. */ - buf->b_arc_access = ddi_get_lbolt(); - DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, buf); - arc_change_state(arc_mfu, buf, hash_lock); + hdr->b_arc_access = ddi_get_lbolt(); + DTRACE_PROBE1(new_state__mfu, arc_buf_hdr_t *, hdr); + arc_change_state(arc_mfu, hdr, hash_lock); } else { ASSERT(!"invalid arc state"); } @@ -3212,9 +3194,9 @@ arc_read_done(zio_t *zio) (found == hdr && HDR_L2_READING(hdr))); } - hdr->b_flags &= ~ARC_L2_EVICTED; - if (l2arc_noprefetch && (hdr->b_flags & ARC_PREFETCH)) - hdr->b_flags &= ~ARC_L2CACHE; + hdr->b_flags &= ~ARC_FLAG_L2_EVICTED; + if (l2arc_noprefetch && (hdr->b_flags & ARC_FLAG_PREFETCH)) + hdr->b_flags &= ~ARC_FLAG_L2CACHE; /* byteswap if necessary */ callback_list = hdr->b_acb; @@ -3256,18 +3238,18 @@ arc_read_done(zio_t *zio) } } hdr->b_acb = NULL; - hdr->b_flags &= ~ARC_IO_IN_PROGRESS; + hdr->b_flags &= ~ARC_FLAG_IO_IN_PROGRESS; ASSERT(!HDR_BUF_AVAILABLE(hdr)); if (abuf == buf) { ASSERT(buf->b_efunc == NULL); ASSERT(hdr->b_datacnt == 1); - hdr->b_flags |= ARC_BUF_AVAILABLE; + hdr->b_flags |= ARC_FLAG_BUF_AVAILABLE; } ASSERT(refcount_is_zero(&hdr->b_refcnt) || callback_list != NULL); if (zio->io_error != 0) { - hdr->b_flags |= ARC_IO_ERROR; + hdr->b_flags |= ARC_FLAG_IO_ERROR; if (hdr->b_state != arc_anon) arc_change_state(arc_anon, hdr, hash_lock); if (HDR_IN_HASH_TABLE(hdr)) @@ -3333,8 +3315,8 @@ arc_read_done(zio_t *zio) */ int arc_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, arc_done_func_t *done, - void *private, zio_priority_t priority, int zio_flags, uint32_t *arc_flags, - const zbookmark_phys_t *zb) + void *private, zio_priority_t priority, int zio_flags, + arc_flags_t *arc_flags, const zbookmark_phys_t *zb) { arc_buf_hdr_t *hdr = NULL; arc_buf_t *buf = NULL; @@ -3356,16 +3338,16 @@ top: if (hdr != NULL && hdr->b_datacnt > 0) { - *arc_flags |= ARC_CACHED; + *arc_flags |= ARC_FLAG_CACHED; if (HDR_IO_IN_PROGRESS(hdr)) { - if (*arc_flags & ARC_WAIT) { + if (*arc_flags & ARC_FLAG_WAIT) { cv_wait(&hdr->b_cv, hash_lock); mutex_exit(hash_lock); goto top; } - ASSERT(*arc_flags & ARC_NOWAIT); + ASSERT(*arc_flags & ARC_FLAG_NOWAIT); if (done) { arc_callback_t *acb = NULL; @@ -3403,24 +3385,24 @@ top: ASSERT(buf->b_data); if (HDR_BUF_AVAILABLE(hdr)) { ASSERT(buf->b_efunc == NULL); - hdr->b_flags &= ~ARC_BUF_AVAILABLE; + hdr->b_flags &= ~ARC_FLAG_BUF_AVAILABLE; } else { buf = arc_buf_clone(buf); } - } else if (*arc_flags & ARC_PREFETCH && + } else if (*arc_flags & ARC_FLAG_PREFETCH && refcount_count(&hdr->b_refcnt) == 0) { - hdr->b_flags |= ARC_PREFETCH; + hdr->b_flags |= ARC_FLAG_PREFETCH; } DTRACE_PROBE1(arc__hit, arc_buf_hdr_t *, hdr); arc_access(hdr, hash_lock); - if (*arc_flags & ARC_L2CACHE) - hdr->b_flags |= ARC_L2CACHE; - if (*arc_flags & ARC_L2COMPRESS) - hdr->b_flags |= ARC_L2COMPRESS; + if (*arc_flags & ARC_FLAG_L2CACHE) + hdr->b_flags |= ARC_FLAG_L2CACHE; + if (*arc_flags & ARC_FLAG_L2COMPRESS) + hdr->b_flags |= ARC_FLAG_L2COMPRESS; mutex_exit(hash_lock); ARCSTAT_BUMP(arcstat_hits); - ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_PREFETCH), + ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_FLAG_PREFETCH), demand, prefetch, hdr->b_type != ARC_BUFC_METADATA, data, metadata, hits); @@ -3454,18 +3436,19 @@ top: (void) arc_buf_remove_ref(buf, private); goto top; /* restart the IO request */ } + /* if this is a prefetch, we don't have a reference */ - if (*arc_flags & ARC_PREFETCH) { + if (*arc_flags & ARC_FLAG_PREFETCH) { (void) remove_reference(hdr, hash_lock, private); - hdr->b_flags |= ARC_PREFETCH; + hdr->b_flags |= ARC_FLAG_PREFETCH; } - if (*arc_flags & ARC_L2CACHE) - hdr->b_flags |= ARC_L2CACHE; - if (*arc_flags & ARC_L2COMPRESS) - hdr->b_flags |= ARC_L2COMPRESS; + if (*arc_flags & ARC_FLAG_L2CACHE) + hdr->b_flags |= ARC_FLAG_L2CACHE; + if (*arc_flags & ARC_FLAG_L2COMPRESS) + hdr->b_flags |= ARC_FLAG_L2COMPRESS; if (BP_GET_LEVEL(bp) > 0) - hdr->b_flags |= ARC_INDIRECT; + hdr->b_flags |= ARC_FLAG_INDIRECT; } else { /* this block is in the ghost cache */ ASSERT(GHOST_STATE(hdr->b_state)); @@ -3474,14 +3457,14 @@ top: ASSERT(hdr->b_buf == NULL); /* if this is a prefetch, we don't have a reference */ - if (*arc_flags & ARC_PREFETCH) - hdr->b_flags |= ARC_PREFETCH; + if (*arc_flags & ARC_FLAG_PREFETCH) + hdr->b_flags |= ARC_FLAG_PREFETCH; else add_reference(hdr, hash_lock, private); - if (*arc_flags & ARC_L2CACHE) - hdr->b_flags |= ARC_L2CACHE; - if (*arc_flags & ARC_L2COMPRESS) - hdr->b_flags |= ARC_L2COMPRESS; + if (*arc_flags & ARC_FLAG_L2CACHE) + hdr->b_flags |= ARC_FLAG_L2CACHE; + if (*arc_flags & ARC_FLAG_L2COMPRESS) + hdr->b_flags |= ARC_FLAG_L2COMPRESS; buf = kmem_cache_alloc(buf_cache, KM_PUSHPAGE); buf->b_hdr = hdr; buf->b_data = NULL; @@ -3503,7 +3486,7 @@ top: ASSERT(hdr->b_acb == NULL); hdr->b_acb = acb; - hdr->b_flags |= ARC_IO_IN_PROGRESS; + hdr->b_flags |= ARC_FLAG_IO_IN_PROGRESS; if (hdr->b_l2hdr != NULL && (vd = hdr->b_l2hdr->b_dev->l2ad_vdev) != NULL) { @@ -3530,7 +3513,7 @@ top: DTRACE_PROBE4(arc__miss, arc_buf_hdr_t *, hdr, blkptr_t *, bp, uint64_t, size, zbookmark_phys_t *, zb); ARCSTAT_BUMP(arcstat_misses); - ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_PREFETCH), + ARCSTAT_CONDSTAT(!(hdr->b_flags & ARC_FLAG_PREFETCH), demand, prefetch, hdr->b_type != ARC_BUFC_METADATA, data, metadata, misses); #ifdef _KERNEL @@ -3595,12 +3578,12 @@ top: zio_t *, rzio); ARCSTAT_INCR(arcstat_l2_read_bytes, b_asize); - if (*arc_flags & ARC_NOWAIT) { + if (*arc_flags & ARC_FLAG_NOWAIT) { zio_nowait(rzio); return (0); } - ASSERT(*arc_flags & ARC_WAIT); + ASSERT(*arc_flags & ARC_FLAG_WAIT); if (zio_wait(rzio) == 0) return (0); @@ -3626,10 +3609,10 @@ top: rzio = zio_read(pio, spa, bp, buf->b_data, size, arc_read_done, buf, priority, zio_flags, zb); - if (*arc_flags & ARC_WAIT) + if (*arc_flags & ARC_FLAG_WAIT) return (zio_wait(rzio)); - ASSERT(*arc_flags & ARC_NOWAIT); + ASSERT(*arc_flags & ARC_FLAG_NOWAIT); zio_nowait(rzio); } return (0); @@ -3666,7 +3649,7 @@ arc_freed(spa_t *spa, const blkptr_t *bp) if (HDR_BUF_AVAILABLE(hdr)) { arc_buf_t *buf = hdr->b_buf; add_reference(hdr, hash_lock, FTAG); - hdr->b_flags &= ~ARC_BUF_AVAILABLE; + hdr->b_flags &= ~ARC_FLAG_BUF_AVAILABLE; mutex_exit(hash_lock); arc_release(buf, FTAG); @@ -3735,7 +3718,7 @@ arc_clear_callback(arc_buf_t *buf) arc_buf_destroy(buf, FALSE, TRUE); } else { ASSERT(buf == hdr->b_buf); - hdr->b_flags |= ARC_BUF_AVAILABLE; + hdr->b_flags |= ARC_FLAG_BUF_AVAILABLE; mutex_exit(&buf->b_evict_lock); } @@ -3844,7 +3827,7 @@ arc_release(arc_buf_t *buf, void *tag) nhdr->b_buf = buf; nhdr->b_state = arc_anon; nhdr->b_arc_access = 0; - nhdr->b_flags = flags & ARC_L2_WRITING; + nhdr->b_flags = flags & ARC_FLAG_L2_WRITING; nhdr->b_l2hdr = NULL; nhdr->b_datacnt = 1; nhdr->b_freeze_cksum = NULL; @@ -3930,7 +3913,7 @@ arc_write_ready(zio_t *zio) mutex_exit(&hdr->b_freeze_lock); } arc_cksum_compute(buf, B_FALSE); - hdr->b_flags |= ARC_IO_IN_PROGRESS; + hdr->b_flags |= ARC_FLAG_IO_IN_PROGRESS; } /* @@ -4011,13 +3994,13 @@ arc_write_done(zio_t *zio) ASSERT(BP_GET_LEVEL(zio->io_bp) == 0); } } - hdr->b_flags &= ~ARC_IO_IN_PROGRESS; + hdr->b_flags &= ~ARC_FLAG_IO_IN_PROGRESS; /* if it's not anon, we are doing a scrub */ if (!exists && hdr->b_state == arc_anon) arc_access(hdr, hash_lock); mutex_exit(hash_lock); } else { - hdr->b_flags &= ~ARC_IO_IN_PROGRESS; + hdr->b_flags &= ~ARC_FLAG_IO_IN_PROGRESS; } ASSERT(!refcount_is_zero(&hdr->b_refcnt)); @@ -4040,12 +4023,12 @@ arc_write(zio_t *pio, spa_t *spa, uint64_t txg, ASSERT(ready != NULL); ASSERT(done != NULL); ASSERT(!HDR_IO_ERROR(hdr)); - ASSERT((hdr->b_flags & ARC_IO_IN_PROGRESS) == 0); + ASSERT((hdr->b_flags & ARC_FLAG_IO_IN_PROGRESS) == 0); ASSERT(hdr->b_acb == NULL); if (l2arc) - hdr->b_flags |= ARC_L2CACHE; + hdr->b_flags |= ARC_FLAG_L2CACHE; if (l2arc_compress) - hdr->b_flags |= ARC_L2COMPRESS; + hdr->b_flags |= ARC_FLAG_L2COMPRESS; callback = kmem_zalloc(sizeof (arc_write_callback_t), KM_SLEEP); callback->awcb_ready = ready; callback->awcb_physdone = physdone; @@ -4581,7 +4564,7 @@ arc_fini(void) */ static boolean_t -l2arc_write_eligible(uint64_t spa_guid, arc_buf_hdr_t *ab) +l2arc_write_eligible(uint64_t spa_guid, arc_buf_hdr_t *hdr) { /* * A buffer is *not* eligible for the L2ARC if it: @@ -4590,19 +4573,19 @@ l2arc_write_eligible(uint64_t spa_guid, arc_buf_hdr_t *ab) * 3. has an I/O in progress (it may be an incomplete read). * 4. is flagged not eligible (zfs property). */ - if (ab->b_spa != spa_guid) { + if (hdr->b_spa != spa_guid) { ARCSTAT_BUMP(arcstat_l2_write_spa_mismatch); return (B_FALSE); } - if (ab->b_l2hdr != NULL) { + if (hdr->b_l2hdr != NULL) { ARCSTAT_BUMP(arcstat_l2_write_in_l2); return (B_FALSE); } - if (HDR_IO_IN_PROGRESS(ab)) { + if (HDR_IO_IN_PROGRESS(hdr)) { ARCSTAT_BUMP(arcstat_l2_write_hdr_io_in_progress); return (B_FALSE); } - if (!HDR_L2CACHE(ab)) { + if (!HDR_L2CACHE(hdr)) { ARCSTAT_BUMP(arcstat_l2_write_not_cacheable); return (B_FALSE); } @@ -4765,7 +4748,7 @@ l2arc_write_done(zio_t *zio) l2arc_write_callback_t *cb; l2arc_dev_t *dev; list_t *buflist; - arc_buf_hdr_t *head, *ab, *ab_prev; + arc_buf_hdr_t *head, *hdr, *hdr_prev; l2arc_buf_hdr_t *abl2; kmutex_t *hash_lock; int64_t bytes_dropped = 0; @@ -4789,17 +4772,17 @@ l2arc_write_done(zio_t *zio) /* * All writes completed, or an error was hit. */ - for (ab = list_prev(buflist, head); ab; ab = ab_prev) { - ab_prev = list_prev(buflist, ab); - abl2 = ab->b_l2hdr; + for (hdr = list_prev(buflist, head); hdr; hdr = hdr_prev) { + hdr_prev = list_prev(buflist, hdr); + abl2 = hdr->b_l2hdr; /* * Release the temporary compressed buffer as soon as possible. */ if (abl2->b_compress != ZIO_COMPRESS_OFF) - l2arc_release_cdata_buf(ab); + l2arc_release_cdata_buf(hdr); - hash_lock = HDR_LOCK(ab); + hash_lock = HDR_LOCK(hdr); if (!mutex_tryenter(hash_lock)) { /* * This buffer misses out. It may be in a stage @@ -4814,20 +4797,20 @@ l2arc_write_done(zio_t *zio) /* * Error - drop L2ARC entry. */ - list_remove(buflist, ab); + list_remove(buflist, hdr); ARCSTAT_INCR(arcstat_l2_asize, -abl2->b_asize); bytes_dropped += abl2->b_asize; - ab->b_l2hdr = NULL; + hdr->b_l2hdr = NULL; trim_map_free(abl2->b_dev->l2ad_vdev, abl2->b_daddr, - ab->b_size, 0); + hdr->b_size, 0); kmem_free(abl2, sizeof (l2arc_buf_hdr_t)); - ARCSTAT_INCR(arcstat_l2_size, -ab->b_size); + ARCSTAT_INCR(arcstat_l2_size, -hdr->b_size); } /* * Allow ARC to begin reads to this L2ARC entry. */ - ab->b_flags &= ~ARC_L2_WRITING; + hdr->b_flags &= ~ARC_FLAG_L2_WRITING; mutex_exit(hash_lock); } @@ -4975,7 +4958,7 @@ l2arc_evict(l2arc_dev_t *dev, uint64_t distance, boolean_t all) { list_t *buflist; l2arc_buf_hdr_t *abl2; - arc_buf_hdr_t *ab, *ab_prev; + arc_buf_hdr_t *hdr, *hdr_prev; kmutex_t *hash_lock; uint64_t taddr; int64_t bytes_evicted = 0; @@ -5007,10 +4990,10 @@ l2arc_evict(l2arc_dev_t *dev, uint64_t distance, boolean_t all) top: mutex_enter(&l2arc_buflist_mtx); - for (ab = list_tail(buflist); ab; ab = ab_prev) { - ab_prev = list_prev(buflist, ab); + for (hdr = list_tail(buflist); hdr; hdr = hdr_prev) { + hdr_prev = list_prev(buflist, hdr); - hash_lock = HDR_LOCK(ab); + hash_lock = HDR_LOCK(hdr); if (!mutex_tryenter(hash_lock)) { /* * Missed the hash lock. Retry. @@ -5022,19 +5005,19 @@ top: goto top; } - if (HDR_L2_WRITE_HEAD(ab)) { + if (HDR_L2_WRITE_HEAD(hdr)) { /* * We hit a write head node. Leave it for * l2arc_write_done(). */ - list_remove(buflist, ab); + list_remove(buflist, hdr); mutex_exit(hash_lock); continue; } - if (!all && ab->b_l2hdr != NULL && - (ab->b_l2hdr->b_daddr > taddr || - ab->b_l2hdr->b_daddr < dev->l2ad_hand)) { + if (!all && hdr->b_l2hdr != NULL && + (hdr->b_l2hdr->b_daddr > taddr || + hdr->b_l2hdr->b_daddr < dev->l2ad_hand)) { /* * We've evicted to the target address, * or the end of the device. @@ -5043,7 +5026,7 @@ top: break; } - if (HDR_FREE_IN_PROGRESS(ab)) { + if (HDR_FREE_IN_PROGRESS(hdr)) { /* * Already on the path to destruction. */ @@ -5051,49 +5034,49 @@ top: continue; } - if (ab->b_state == arc_l2c_only) { - ASSERT(!HDR_L2_READING(ab)); + if (hdr->b_state == arc_l2c_only) { + ASSERT(!HDR_L2_READING(hdr)); /* * This doesn't exist in the ARC. Destroy. * arc_hdr_destroy() will call list_remove() * and decrement arcstat_l2_size. */ - arc_change_state(arc_anon, ab, hash_lock); - arc_hdr_destroy(ab); + arc_change_state(arc_anon, hdr, hash_lock); + arc_hdr_destroy(hdr); } else { /* * Invalidate issued or about to be issued * reads, since we may be about to write * over this location. */ - if (HDR_L2_READING(ab)) { + if (HDR_L2_READING(hdr)) { ARCSTAT_BUMP(arcstat_l2_evict_reading); - ab->b_flags |= ARC_L2_EVICTED; + hdr->b_flags |= ARC_FLAG_L2_EVICTED; } /* * Tell ARC this no longer exists in L2ARC. */ - if (ab->b_l2hdr != NULL) { - abl2 = ab->b_l2hdr; + if (hdr->b_l2hdr != NULL) { + abl2 = hdr->b_l2hdr; ARCSTAT_INCR(arcstat_l2_asize, -abl2->b_asize); bytes_evicted += abl2->b_asize; - ab->b_l2hdr = NULL; + hdr->b_l2hdr = NULL; /* * We are destroying l2hdr, so ensure that * its compressed buffer, if any, is not leaked. */ ASSERT(abl2->b_tmp_cdata == NULL); kmem_free(abl2, sizeof (l2arc_buf_hdr_t)); - ARCSTAT_INCR(arcstat_l2_size, -ab->b_size); + ARCSTAT_INCR(arcstat_l2_size, -hdr->b_size); } - list_remove(buflist, ab); + list_remove(buflist, hdr); /* * This may have been leftover after a * failed write. */ - ab->b_flags &= ~ARC_L2_WRITING; + hdr->b_flags &= ~ARC_FLAG_L2_WRITING; } mutex_exit(hash_lock); } @@ -5106,7 +5089,7 @@ top: /* * Find and write ARC buffers to the L2ARC device. * - * An ARC_L2_WRITING flag is set so that the L2ARC buffers are not valid + * An ARC_FLAG_L2_WRITING flag is set so that the L2ARC buffers are not valid * for reading until they have completed writing. * The headroom_boost is an in-out parameter used to maintain headroom boost * state between calls to this function. @@ -5118,7 +5101,7 @@ static uint64_t l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz, boolean_t *headroom_boost) { - arc_buf_hdr_t *ab, *ab_prev, *head; + arc_buf_hdr_t *hdr, *hdr_prev, *head; list_t *list; uint64_t write_asize, write_psize, write_sz, headroom, buf_compress_minsz; @@ -5140,7 +5123,7 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz, write_sz = write_asize = write_psize = 0; full = B_FALSE; head = kmem_cache_alloc(hdr_cache, KM_PUSHPAGE); - head->b_flags |= ARC_L2_WRITE_HEAD; + head->b_flags |= ARC_FLAG_L2_WRITE_HEAD; ARCSTAT_BUMP(arcstat_l2_write_buffer_iter); /* @@ -5166,28 +5149,28 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz, * head of the ARC lists rather than the tail. */ if (arc_warm == B_FALSE) - ab = list_head(list); + hdr = list_head(list); else - ab = list_tail(list); - if (ab == NULL) + hdr = list_tail(list); + if (hdr == NULL) ARCSTAT_BUMP(arcstat_l2_write_buffer_list_null_iter); headroom = target_sz * l2arc_headroom * 2 / ARC_BUFC_NUMLISTS; if (do_headroom_boost) headroom = (headroom * l2arc_headroom_boost) / 100; - for (; ab; ab = ab_prev) { + for (; hdr; hdr = hdr_prev) { l2arc_buf_hdr_t *l2hdr; kmutex_t *hash_lock; uint64_t buf_sz; if (arc_warm == B_FALSE) - ab_prev = list_next(list, ab); + hdr_prev = list_next(list, hdr); else - ab_prev = list_prev(list, ab); - ARCSTAT_INCR(arcstat_l2_write_buffer_bytes_scanned, ab->b_size); + hdr_prev = list_prev(list, hdr); + ARCSTAT_INCR(arcstat_l2_write_buffer_bytes_scanned, hdr->b_size); - hash_lock = HDR_LOCK(ab); + hash_lock = HDR_LOCK(hdr); if (!mutex_tryenter(hash_lock)) { ARCSTAT_BUMP(arcstat_l2_write_trylock_fail); /* @@ -5196,7 +5179,7 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz, continue; } - passed_sz += ab->b_size; + passed_sz += hdr->b_size; if (passed_sz > headroom) { /* * Searched too far. @@ -5206,12 +5189,12 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz, break; } - if (!l2arc_write_eligible(guid, ab)) { + if (!l2arc_write_eligible(guid, hdr)) { mutex_exit(hash_lock); continue; } - if ((write_sz + ab->b_size) > target_sz) { + if ((write_sz + hdr->b_size) > target_sz) { full = B_TRUE; mutex_exit(hash_lock); ARCSTAT_BUMP(arcstat_l2_write_full); @@ -5240,31 +5223,31 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz, */ l2hdr = kmem_zalloc(sizeof (l2arc_buf_hdr_t), KM_SLEEP); l2hdr->b_dev = dev; - ab->b_flags |= ARC_L2_WRITING; + hdr->b_flags |= ARC_FLAG_L2_WRITING; /* * Temporarily stash the data buffer in b_tmp_cdata. * The subsequent write step will pick it up from - * there. This is because can't access ab->b_buf + * there. This is because can't access hdr->b_buf * without holding the hash_lock, which we in turn * can't access without holding the ARC list locks * (which we want to avoid during compression/writing). */ l2hdr->b_compress = ZIO_COMPRESS_OFF; - l2hdr->b_asize = ab->b_size; - l2hdr->b_tmp_cdata = ab->b_buf->b_data; + l2hdr->b_asize = hdr->b_size; + l2hdr->b_tmp_cdata = hdr->b_buf->b_data; - buf_sz = ab->b_size; - ab->b_l2hdr = l2hdr; + buf_sz = hdr->b_size; + hdr->b_l2hdr = l2hdr; - list_insert_head(dev->l2ad_buflist, ab); + list_insert_head(dev->l2ad_buflist, hdr); /* * Compute and store the buffer cksum before * writing. On debug the cksum is verified first. */ - arc_cksum_verify(ab->b_buf); - arc_cksum_compute(ab->b_buf, B_TRUE); + arc_cksum_verify(hdr->b_buf); + arc_cksum_compute(hdr->b_buf, B_TRUE); mutex_exit(hash_lock); @@ -5290,21 +5273,22 @@ l2arc_write_buffers(spa_t *spa, l2arc_dev_t *dev, uint64_t target_sz, * and work backwards, retracing the course of the buffer selector * loop above. */ - for (ab = list_prev(dev->l2ad_buflist, head); ab; - ab = list_prev(dev->l2ad_buflist, ab)) { + for (hdr = list_prev(dev->l2ad_buflist, head); hdr; + hdr = list_prev(dev->l2ad_buflist, hdr)) { l2arc_buf_hdr_t *l2hdr; uint64_t buf_sz; /* * We shouldn't need to lock the buffer here, since we flagged - * it as ARC_L2_WRITING in the previous step, but we must take - * care to only access its L2 cache parameters. In particular, - * ab->b_buf may be invalid by now due to ARC eviction. + * it as ARC_FLAG_L2_WRITING in the previous step, but we must + * take care to only access its L2 cache parameters. In + * particular, hdr->b_buf may be invalid by now due to + * ARC eviction. */ - l2hdr = ab->b_l2hdr; + l2hdr = hdr->b_l2hdr; l2hdr->b_daddr = dev->l2ad_hand; - if ((ab->b_flags & ARC_L2COMPRESS) && + if ((hdr->b_flags & ARC_FLAG_L2COMPRESS) && l2hdr->b_asize >= buf_compress_minsz) { if (l2arc_compress_buf(l2hdr)) { /* @@ -5518,9 +5502,9 @@ l2arc_decompress_zio(zio_t *zio, arc_buf_hdr_t *hdr, enum zio_compress c) * done, we can dispose of it. */ static void -l2arc_release_cdata_buf(arc_buf_hdr_t *ab) +l2arc_release_cdata_buf(arc_buf_hdr_t *hdr) { - l2arc_buf_hdr_t *l2hdr = ab->b_l2hdr; + l2arc_buf_hdr_t *l2hdr = hdr->b_l2hdr; ASSERT(L2ARC_IS_VALID_COMPRESS(l2hdr->b_compress)); if (l2hdr->b_compress != ZIO_COMPRESS_EMPTY) { @@ -5529,7 +5513,7 @@ l2arc_release_cdata_buf(arc_buf_hdr_t *ab) * temporary buffer for it, so now we need to release it. */ ASSERT(l2hdr->b_tmp_cdata != NULL); - zio_data_buf_free(l2hdr->b_tmp_cdata, ab->b_size); + zio_data_buf_free(l2hdr->b_tmp_cdata, hdr->b_size); l2hdr->b_tmp_cdata = NULL; } else { ASSERT(l2hdr->b_tmp_cdata == NULL); diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c index 2cdc3d4..ea3c688 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c @@ -507,7 +507,7 @@ dbuf_read_impl(dmu_buf_impl_t *db, zio_t *zio, uint32_t *flags) { dnode_t *dn; zbookmark_phys_t zb; - uint32_t aflags = ARC_NOWAIT; + arc_flags_t aflags = ARC_FLAG_NOWAIT; DB_DNODE_ENTER(db); dn = DB_DNODE(db); @@ -560,9 +560,9 @@ dbuf_read_impl(dmu_buf_impl_t *db, zio_t *zio, uint32_t *flags) mutex_exit(&db->db_mtx); if (DBUF_IS_L2CACHEABLE(db)) - aflags |= ARC_L2CACHE; + aflags |= ARC_FLAG_L2CACHE; if (DBUF_IS_L2COMPRESSIBLE(db)) - aflags |= ARC_L2COMPRESS; + aflags |= ARC_FLAG_L2COMPRESS; SET_BOOKMARK(&zb, db->db_objset->os_dsl_dataset ? db->db_objset->os_dsl_dataset->ds_object : DMU_META_OBJSET, @@ -574,7 +574,7 @@ dbuf_read_impl(dmu_buf_impl_t *db, zio_t *zio, uint32_t *flags) dbuf_read_done, db, ZIO_PRIORITY_SYNC_READ, (*flags & DB_RF_CANFAIL) ? ZIO_FLAG_CANFAIL : ZIO_FLAG_MUSTSUCCEED, &aflags, &zb); - if (aflags & ARC_CACHED) + if (aflags & ARC_FLAG_CACHED) *flags |= DB_RF_CACHED; } @@ -1863,7 +1863,8 @@ dbuf_prefetch(dnode_t *dn, uint64_t blkid, zio_priority_t prio) if (dbuf_findbp(dn, 0, blkid, TRUE, &db, &bp) == 0) { if (bp && !BP_IS_HOLE(bp) && !BP_IS_EMBEDDED(bp)) { dsl_dataset_t *ds = dn->dn_objset->os_dsl_dataset; - uint32_t aflags = ARC_NOWAIT | ARC_PREFETCH; + arc_flags_t aflags = + ARC_FLAG_NOWAIT | ARC_FLAG_PREFETCH; zbookmark_phys_t zb; SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET, diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_diff.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_diff.c index cc81dc6..bd9e894 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_diff.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_diff.c @@ -152,7 +152,7 @@ diff_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, } else if (zb->zb_level == 0) { dnode_phys_t *blk; arc_buf_t *abuf; - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; int blksz = BP_GET_LSIZE(bp); int i; diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c index e39264c..36ac27a 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c @@ -293,15 +293,15 @@ dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, os->os_spa = spa; os->os_rootbp = bp; if (!BP_IS_HOLE(os->os_rootbp)) { - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; zbookmark_phys_t zb; SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET, ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); if (DMU_OS_IS_L2CACHEABLE(os)) - aflags |= ARC_L2CACHE; + aflags |= ARC_FLAG_L2CACHE; if (DMU_OS_IS_L2COMPRESSIBLE(os)) - aflags |= ARC_L2COMPRESS; + aflags |= ARC_FLAG_L2COMPRESS; dprintf_bp(os->os_rootbp, "reading %s", ""); err = arc_read(NULL, spa, os->os_rootbp, diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c index 86aee07..d74c2cf 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c @@ -479,7 +479,7 @@ backup_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, dnode_phys_t *blk; int i; int blksz = BP_GET_LSIZE(bp); - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; arc_buf_t *abuf; if (arc_read(NULL, spa, bp, arc_getbuf_func, &abuf, @@ -497,7 +497,7 @@ backup_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, } (void) arc_buf_remove_ref(abuf, &abuf); } else if (type == DMU_OT_SA) { - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; arc_buf_t *abuf; int blksz = BP_GET_LSIZE(bp); @@ -514,7 +514,7 @@ backup_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, err = dump_write_embedded(dsp, zb->zb_object, zb->zb_blkid * blksz, blksz, bp); } else { /* it's a level-0 block of a regular object */ - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; arc_buf_t *abuf; int blksz = BP_GET_LSIZE(bp); uint64_t offset; diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c index bffdff6..7b1d6be 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c @@ -178,7 +178,7 @@ static void traverse_prefetch_metadata(traverse_data_t *td, const blkptr_t *bp, const zbookmark_phys_t *zb) { - uint32_t flags = ARC_NOWAIT | ARC_PREFETCH; + arc_flags_t flags = ARC_FLAG_NOWAIT | ARC_FLAG_PREFETCH; if (!(td->td_flags & TRAVERSE_PREFETCH_METADATA)) return; @@ -275,7 +275,7 @@ traverse_visitbp(traverse_data_t *td, const dnode_phys_t *dnp, } if (BP_GET_LEVEL(bp) > 0) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; int i; blkptr_t *cbp; int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; @@ -303,7 +303,7 @@ traverse_visitbp(traverse_data_t *td, const dnode_phys_t *dnp, break; } } else if (BP_GET_TYPE(bp) == DMU_OT_DNODE) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; int i; int epb = BP_GET_LSIZE(bp) >> DNODE_SHIFT; @@ -326,7 +326,7 @@ traverse_visitbp(traverse_data_t *td, const dnode_phys_t *dnp, break; } } else if (BP_GET_TYPE(bp) == DMU_OT_OBJSET) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; objset_phys_t *osp; dnode_phys_t *dnp; @@ -442,7 +442,7 @@ traverse_prefetcher(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) { prefetch_data_t *pfd = arg; - uint32_t aflags = ARC_NOWAIT | ARC_PREFETCH; + arc_flags_t aflags = ARC_FLAG_NOWAIT | ARC_FLAG_PREFETCH; ASSERT(pfd->pd_blks_fetched >= 0); if (pfd->pd_cancel) @@ -533,7 +533,7 @@ traverse_impl(spa_t *spa, dsl_dataset_t *ds, uint64_t objset, blkptr_t *rootbp, /* See comment on ZIL traversal in dsl_scan_visitds. */ if (ds != NULL && !dsl_dataset_is_snapshot(ds) && !BP_IS_HOLE(rootbp)) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; objset_phys_t *osp; arc_buf_t *buf; diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c index 135397d..3b1d732 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c @@ -571,7 +571,7 @@ dsl_scan_prefetch(dsl_scan_t *scn, arc_buf_t *buf, blkptr_t *bp, uint64_t objset, uint64_t object, uint64_t blkid) { zbookmark_phys_t czb; - uint32_t flags = ARC_NOWAIT | ARC_PREFETCH; + arc_flags_t flags = ARC_FLAG_NOWAIT | ARC_FLAG_PREFETCH; if (zfs_no_scrub_prefetch) return; @@ -636,7 +636,7 @@ dsl_scan_recurse(dsl_scan_t *scn, dsl_dataset_t *ds, dmu_objset_type_t ostype, int err; if (BP_GET_LEVEL(bp) > 0) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; int i; blkptr_t *cbp; int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; @@ -663,7 +663,7 @@ dsl_scan_recurse(dsl_scan_t *scn, dsl_dataset_t *ds, dmu_objset_type_t ostype, } (void) arc_buf_remove_ref(buf, &buf); } else if (BP_GET_TYPE(bp) == DMU_OT_DNODE) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; dnode_phys_t *cdnp; int i, j; int epb = BP_GET_LSIZE(bp) >> DNODE_SHIFT; @@ -689,7 +689,7 @@ dsl_scan_recurse(dsl_scan_t *scn, dsl_dataset_t *ds, dmu_objset_type_t ostype, (void) arc_buf_remove_ref(buf, &buf); } else if (BP_GET_TYPE(bp) == DMU_OT_OBJSET) { - uint32_t flags = ARC_WAIT; + arc_flags_t flags = ARC_FLAG_WAIT; objset_phys_t *osp; arc_buf_t *buf; diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/arc.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/arc.h index 9065a22..eb21867 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/arc.h +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/arc.h @@ -46,6 +46,36 @@ typedef int arc_evict_func_t(void *priv); arc_done_func_t arc_bcopy_func; arc_done_func_t arc_getbuf_func; +typedef enum arc_flags +{ + /* + * Public flags that can be passed into the ARC by external consumers. + */ + ARC_FLAG_NONE = 1 << 0, /* No flags set */ + ARC_FLAG_WAIT = 1 << 1, /* perform sync I/O */ + ARC_FLAG_NOWAIT = 1 << 2, /* perform async I/O */ + ARC_FLAG_PREFETCH = 1 << 3, /* I/O is a prefetch */ + ARC_FLAG_CACHED = 1 << 4, /* I/O was in cache */ + ARC_FLAG_L2CACHE = 1 << 5, /* cache in L2ARC */ + ARC_FLAG_L2COMPRESS = 1 << 6, /* compress in L2ARC */ + + /* + * Private ARC flags. These flags are private ARC only flags that + * will show up in b_flags in the arc_hdr_buf_t. These flags should + * only be set by ARC code. + */ + ARC_FLAG_IN_HASH_TABLE = 1 << 7, /* buffer is hashed */ + ARC_FLAG_IO_IN_PROGRESS = 1 << 8, /* I/O in progress */ + ARC_FLAG_IO_ERROR = 1 << 9, /* I/O failed for buf */ + ARC_FLAG_FREED_IN_READ = 1 << 10, /* freed during read */ + ARC_FLAG_BUF_AVAILABLE = 1 << 11, /* block not in use */ + ARC_FLAG_INDIRECT = 1 << 12, /* indirect block */ + ARC_FLAG_FREE_IN_PROGRESS = 1 << 13, /* about to be freed */ + ARC_FLAG_L2_WRITING = 1 << 14, /* write in progress */ + ARC_FLAG_L2_EVICTED = 1 << 15, /* evicted during I/O */ + ARC_FLAG_L2_WRITE_HEAD = 1 << 16, /* head of write list */ +} arc_flags_t; + struct arc_buf { arc_buf_hdr_t *b_hdr; arc_buf_t *b_next; @@ -60,15 +90,6 @@ typedef enum arc_buf_contents { ARC_BUFC_METADATA, /* buffer contains metadata */ ARC_BUFC_NUMTYPES } arc_buf_contents_t; -/* - * These are the flags we pass into calls to the arc - */ -#define ARC_WAIT (1 << 1) /* perform I/O synchronously */ -#define ARC_NOWAIT (1 << 2) /* perform I/O asynchronously */ -#define ARC_PREFETCH (1 << 3) /* I/O is a prefetch */ -#define ARC_CACHED (1 << 4) /* I/O was already in cache */ -#define ARC_L2CACHE (1 << 5) /* cache in L2ARC */ -#define ARC_L2COMPRESS (1 << 6) /* compress in L2ARC */ /* * The following breakdows of arc_size exist for kstat only. @@ -102,7 +123,7 @@ int arc_referenced(arc_buf_t *buf); int arc_read(zio_t *pio, spa_t *spa, const blkptr_t *bp, arc_done_func_t *done, void *priv, zio_priority_t priority, int flags, - uint32_t *arc_flags, const zbookmark_phys_t *zb); + arc_flags_t *arc_flags, const zbookmark_phys_t *zb); zio_t *arc_write(zio_t *pio, spa_t *spa, uint64_t txg, blkptr_t *bp, arc_buf_t *buf, boolean_t l2arc, boolean_t l2arc_compress, const zio_prop_t *zp, arc_done_func_t *ready, arc_done_func_t *physdone, diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c index 2084d88..2dcfe06 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c @@ -190,7 +190,7 @@ zil_read_log_block(zilog_t *zilog, const blkptr_t *bp, blkptr_t *nbp, void *dst, char **end) { enum zio_flag zio_flags = ZIO_FLAG_CANFAIL; - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; arc_buf_t *abuf = NULL; zbookmark_phys_t zb; int error; @@ -266,7 +266,7 @@ zil_read_log_data(zilog_t *zilog, const lr_write_t *lr, void *wbuf) { enum zio_flag zio_flags = ZIO_FLAG_CANFAIL; const blkptr_t *bp = &lr->lr_blkptr; - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; arc_buf_t *abuf = NULL; zbookmark_phys_t zb; int error; diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c index 8408afb..3925e90 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c @@ -2250,7 +2250,7 @@ zio_ddt_collision(zio_t *zio, ddt_t *ddt, ddt_entry_t *dde) if (ddp->ddp_phys_birth != 0) { arc_buf_t *abuf = NULL; - uint32_t aflags = ARC_WAIT; + arc_flags_t aflags = ARC_FLAG_WAIT; blkptr_t blk = *zio->io_bp; int error; |
