*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
+ * Copyright (c) 2011, 2018 by Delphix. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+ * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
+ * Copyright 2013 Saso Kiselkov. All rights reserved.
+ * Copyright (c) 2014 Integros [integros.com]
+ * Copyright 2017 Joyent, Inc.
+ * Copyright (c) 2017 Datto Inc.
+ * Copyright (c) 2017, Intel Corporation.
*/
#ifndef _SYS_SPA_H
#include <sys/sysmacros.h>
#include <sys/types.h>
#include <sys/fs/zfs.h>
+#include <sys/spa_checksum.h>
+#include <sys/dmu.h>
#ifdef __cplusplus
extern "C" {
struct dsl_pool;
struct dsl_dataset;
+struct dsl_crypto_params;
/*
* General-purpose 32-bit and 64-bit bitfield encodings.
_NOTE(CONSTCOND) } while (0)
/*
- * We currently support nine block sizes, from 512 bytes to 128K.
- * We could go higher, but the benefits are near-zero and the cost
- * of COWing a giant block to modify one byte would become excessive.
+ * We currently support block sizes from 512 bytes to 16MB.
+ * The benefits of larger blocks, and thus larger IO, need to be weighed
+ * against the cost of COWing a giant block to modify one byte, and the
+ * large latency of reading or writing a large block.
+ *
+ * Note that although blocks up to 16MB are supported, the recordsize
+ * property can not be set larger than zfs_max_recordsize (default 1MB).
+ * See the comment near zfs_max_recordsize in dsl_dataset.c for details.
+ *
+ * Note that although the LSIZE field of the blkptr_t can store sizes up
+ * to 32MB, the dnode's dn_datablkszsec can only store sizes up to
+ * 32MB - 512 bytes. Therefore, we limit SPA_MAXBLOCKSIZE to 16MB.
*/
#define SPA_MINBLOCKSHIFT 9
-#define SPA_MAXBLOCKSHIFT 17
+#define SPA_OLD_MAXBLOCKSHIFT 17
+#define SPA_MAXBLOCKSHIFT 24
#define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
+#define SPA_OLD_MAXBLOCKSIZE (1ULL << SPA_OLD_MAXBLOCKSHIFT)
#define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
-#define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)
+/*
+ * Alignment Shift (ashift) is an immutable, internal top-level vdev property
+ * which can only be set at vdev creation time. Physical writes are always done
+ * according to it, which makes 2^ashift the smallest possible IO on a vdev.
+ *
+ * We currently allow values ranging from 512 bytes (2^9 = 512) to 64 KiB
+ * (2^16 = 65,536).
+ */
+#define ASHIFT_MIN 9
+#define ASHIFT_MAX 16
/*
* Size of block to hold the configuration data (a packed nvlist)
#define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */
#define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */
+#define SPA_COMPRESSBITS 7
+#define SPA_VDEVBITS 24
+
/*
* All SPA data is represented by 128-bit data virtual addresses (DVAs).
* The members of the dva_t should be considered opaque outside the SPA.
uint64_t dva_word[2];
} dva_t;
+
/*
- * Each block has a 256-bit checksum -- strong enough for cryptographic hashes.
+ * Some checksums/hashes need a 256-bit initialization salt. This salt is kept
+ * secret and is suitable for use in MAC algorithms as the key.
*/
-typedef struct zio_cksum {
- uint64_t zc_word[4];
-} zio_cksum_t;
+typedef struct zio_cksum_salt {
+ uint8_t zcs_bytes[32];
+} zio_cksum_salt_t;
/*
* Each block is described by its DVAs, time of birth, checksum, etc.
*
* 64 56 48 40 32 24 16 8 0
* +-------+-------+-------+-------+-------+-------+-------+-------+
- * 0 | vdev1 | GRID | ASIZE |
+ * 0 | pad | vdev1 | GRID | ASIZE |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 1 |G| offset1 |
* +-------+-------+-------+-------+-------+-------+-------+-------+
- * 2 | vdev2 | GRID | ASIZE |
+ * 2 | pad | vdev2 | GRID | ASIZE |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 3 |G| offset2 |
* +-------+-------+-------+-------+-------+-------+-------+-------+
- * 4 | vdev3 | GRID | ASIZE |
+ * 4 | pad | vdev3 | GRID | ASIZE |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* 5 |G| offset3 |
* +-------+-------+-------+-------+-------+-------+-------+-------+
* G gang block indicator
* B byteorder (endianness)
* D dedup
- * X encryption (on version 30, which is not supported)
+ * X encryption
* E blkptr_t contains embedded data (see below)
* lvl level of indirection
* type DMU object type
- * phys birth txg of block allocation; zero if same as logical birth txg
+ * phys birth txg when dva[0] was written; zero if same as logical birth txg
+ * note that typically all the dva's would be written in this
+ * txg, but they could be different if they were moved by
+ * device removal.
* log. birth transaction group in which the block was logically born
* fill count number of non-zero blocks under this bp
* checksum[4] 256-bit checksum of the data this bp describes
*/
+/*
+ * The blkptr_t's of encrypted blocks also need to store the encryption
+ * parameters so that the block can be decrypted. This layout is as follows:
+ *
+ * 64 56 48 40 32 24 16 8 0
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 0 | vdev1 | GRID | ASIZE |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 1 |G| offset1 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 2 | vdev2 | GRID | ASIZE |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 3 |G| offset2 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 4 | salt |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 5 | IV1 |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 6 |BDX|lvl| type | cksum |E| comp| PSIZE | LSIZE |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 7 | padding |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 8 | padding |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * 9 | physical birth txg |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * a | logical birth txg |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * b | IV2 | fill count |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * c | checksum[0] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * d | checksum[1] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * e | MAC[0] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ * f | MAC[1] |
+ * +-------+-------+-------+-------+-------+-------+-------+-------+
+ *
+ * Legend:
+ *
+ * salt Salt for generating encryption keys
+ * IV1 First 64 bits of encryption IV
+ * X Block requires encryption handling (set to 1)
+ * E blkptr_t contains embedded data (set to 0, see below)
+ * fill count number of non-zero blocks under this bp (truncated to 32 bits)
+ * IV2 Last 32 bits of encryption IV
+ * checksum[2] 128-bit checksum of the data this bp describes
+ * MAC[2] 128-bit message authentication code for this data
+ *
+ * The X bit being set indicates that this block is one of 3 types. If this is
+ * a level 0 block with an encrypted object type, the block is encrypted
+ * (see BP_IS_ENCRYPTED()). If this is a level 0 block with an unencrypted
+ * object type, this block is authenticated with an HMAC (see
+ * BP_IS_AUTHENTICATED()). Otherwise (if level > 0), this bp will use the MAC
+ * words to store a checksum-of-MACs from the level below (see
+ * BP_HAS_INDIRECT_MAC_CKSUM()). For convenience in the code, BP_IS_PROTECTED()
+ * refers to both encrypted and authenticated blocks and BP_USES_CRYPT()
+ * refers to any of these 3 kinds of blocks.
+ *
+ * The additional encryption parameters are the salt, IV, and MAC which are
+ * explained in greater detail in the block comment at the top of zio_crypt.c.
+ * The MAC occupies half of the checksum space since it serves a very similar
+ * purpose: to prevent data corruption on disk. The only functional difference
+ * is that the checksum is used to detect on-disk corruption whether or not the
+ * encryption key is loaded and the MAC provides additional protection against
+ * malicious disk tampering. We use the 3rd DVA to store the salt and first
+ * 64 bits of the IV. As a result encrypted blocks can only have 2 copies
+ * maximum instead of the normal 3. The last 32 bits of the IV are stored in
+ * the upper bits of what is usually the fill count. Note that only blocks at
+ * level 0 or -2 are ever encrypted, which allows us to guarantee that these
+ * 32 bits are not trampled over by other code (see zio_crypt.c for details).
+ * The salt and IV are not used for authenticated bps or bps with an indirect
+ * MAC checksum, so these blocks can utilize all 3 DVAs and the full 64 bits
+ * for the fill count.
+ */
+
/*
* "Embedded" blkptr_t's don't actually point to a block, instead they
* have a data payload embedded in the blkptr_t itself. See the comment
* payload contains the embedded data
* B (byteorder) byteorder (endianness)
* D (dedup) padding (set to zero)
- * X encryption (set to zero; see above)
+ * X encryption (set to zero)
* E (embedded) set to one
* lvl indirection level
* type DMU object type
* BP's so the BP_SET_* macros can be used with them. etype, PSIZE, LSIZE must
* be set with the BPE_SET_* macros. BP_SET_EMBEDDED() should be called before
* other macros, as they assert that they are only used on BP's of the correct
- * "embedded-ness".
+ * "embedded-ness". Encrypted blkptr_t's cannot be embedded because they use
+ * the payload space for encryption parameters (see the comment above on
+ * how encryption parameters are stored).
*/
#define BPE_GET_ETYPE(bp) \
#define SPA_BLKPTRSHIFT 7 /* blkptr_t is 128 bytes */
#define SPA_DVAS_PER_BP 3 /* Number of DVAs in a bp */
+#define SPA_SYNC_MIN_VDEVS 3 /* min vdevs to update during sync */
/*
* A block is a hole when it has either 1) never been written to, or
#define DVA_GET_GRID(dva) BF64_GET((dva)->dva_word[0], 24, 8)
#define DVA_SET_GRID(dva, x) BF64_SET((dva)->dva_word[0], 24, 8, x)
-#define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, 32)
-#define DVA_SET_VDEV(dva, x) BF64_SET((dva)->dva_word[0], 32, 32, x)
+#define DVA_GET_VDEV(dva) BF64_GET((dva)->dva_word[0], 32, SPA_VDEVBITS)
+#define DVA_SET_VDEV(dva, x) \
+ BF64_SET((dva)->dva_word[0], 32, SPA_VDEVBITS, x)
#define DVA_GET_OFFSET(dva) \
BF64_GET_SB((dva)->dva_word[1], 0, 63, SPA_MINBLOCKSHIFT, 0)
16, SPA_PSIZEBITS, SPA_MINBLOCKSHIFT, 1, x); \
_NOTE(CONSTCOND) } while (0)
-#define BP_GET_COMPRESS(bp) BF64_GET((bp)->blk_prop, 32, 7)
-#define BP_SET_COMPRESS(bp, x) BF64_SET((bp)->blk_prop, 32, 7, x)
+#define BP_GET_COMPRESS(bp) \
+ BF64_GET((bp)->blk_prop, 32, SPA_COMPRESSBITS)
+#define BP_SET_COMPRESS(bp, x) \
+ BF64_SET((bp)->blk_prop, 32, SPA_COMPRESSBITS, x)
#define BP_IS_EMBEDDED(bp) BF64_GET((bp)->blk_prop, 39, 1)
#define BP_SET_EMBEDDED(bp, x) BF64_SET((bp)->blk_prop, 39, 1, x)
#define BP_GET_LEVEL(bp) BF64_GET((bp)->blk_prop, 56, 5)
#define BP_SET_LEVEL(bp, x) BF64_SET((bp)->blk_prop, 56, 5, x)
+/* encrypted, authenticated, and MAC cksum bps use the same bit */
+#define BP_USES_CRYPT(bp) BF64_GET((bp)->blk_prop, 61, 1)
+#define BP_SET_CRYPT(bp, x) BF64_SET((bp)->blk_prop, 61, 1, x)
+
+#define BP_IS_ENCRYPTED(bp) \
+ (BP_USES_CRYPT(bp) && \
+ BP_GET_LEVEL(bp) <= 0 && \
+ DMU_OT_IS_ENCRYPTED(BP_GET_TYPE(bp)))
+
+#define BP_IS_AUTHENTICATED(bp) \
+ (BP_USES_CRYPT(bp) && \
+ BP_GET_LEVEL(bp) <= 0 && \
+ !DMU_OT_IS_ENCRYPTED(BP_GET_TYPE(bp)))
+
+#define BP_HAS_INDIRECT_MAC_CKSUM(bp) \
+ (BP_USES_CRYPT(bp) && BP_GET_LEVEL(bp) > 0)
+
+#define BP_IS_PROTECTED(bp) \
+ (BP_IS_ENCRYPTED(bp) || BP_IS_AUTHENTICATED(bp))
+
#define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1)
#define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x)
(bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \
}
-#define BP_GET_FILL(bp) (BP_IS_EMBEDDED(bp) ? 1 : (bp)->blk_fill)
+#define BP_GET_FILL(bp) \
+ ((BP_IS_ENCRYPTED(bp)) ? BF64_GET((bp)->blk_fill, 0, 32) : \
+ ((BP_IS_EMBEDDED(bp)) ? 1 : (bp)->blk_fill))
+
+#define BP_SET_FILL(bp, fill) \
+{ \
+ if (BP_IS_ENCRYPTED(bp)) \
+ BF64_SET((bp)->blk_fill, 0, 32, fill); \
+ else \
+ (bp)->blk_fill = fill; \
+}
+
+#define BP_GET_IV2(bp) \
+ (ASSERT(BP_IS_ENCRYPTED(bp)), \
+ BF64_GET((bp)->blk_fill, 32, 32))
+#define BP_SET_IV2(bp, iv2) \
+{ \
+ ASSERT(BP_IS_ENCRYPTED(bp)); \
+ BF64_SET((bp)->blk_fill, 32, 32, iv2); \
+}
+
+#define BP_IS_METADATA(bp) \
+ (BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
#define BP_GET_ASIZE(bp) \
(BP_IS_EMBEDDED(bp) ? 0 : \
DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
- DVA_GET_ASIZE(&(bp)->blk_dva[2]))
+ (DVA_GET_ASIZE(&(bp)->blk_dva[2]) * !BP_IS_ENCRYPTED(bp)))
-#define BP_GET_UCSIZE(bp) \
- ((BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) ? \
- BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp))
+#define BP_GET_UCSIZE(bp) \
+ (BP_IS_METADATA(bp) ? BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp))
#define BP_GET_NDVAS(bp) \
(BP_IS_EMBEDDED(bp) ? 0 : \
!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
!!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
- !!DVA_GET_ASIZE(&(bp)->blk_dva[2]))
+ (!!DVA_GET_ASIZE(&(bp)->blk_dva[2]) * !BP_IS_ENCRYPTED(bp)))
#define BP_COUNT_GANG(bp) \
(BP_IS_EMBEDDED(bp) ? 0 : \
(DVA_GET_GANG(&(bp)->blk_dva[0]) + \
DVA_GET_GANG(&(bp)->blk_dva[1]) + \
- DVA_GET_GANG(&(bp)->blk_dva[2])))
+ (DVA_GET_GANG(&(bp)->blk_dva[2]) * !BP_IS_ENCRYPTED(bp))))
#define DVA_EQUAL(dva1, dva2) \
((dva1)->dva_word[1] == (dva2)->dva_word[1] && \
DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \
DVA_EQUAL(&(bp1)->blk_dva[2], &(bp2)->blk_dva[2]))
-#define ZIO_CHECKSUM_EQUAL(zc1, zc2) \
- (0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \
- ((zc1).zc_word[1] - (zc2).zc_word[1]) | \
- ((zc1).zc_word[2] - (zc2).zc_word[2]) | \
- ((zc1).zc_word[3] - (zc2).zc_word[3])))
#define DVA_IS_VALID(dva) (DVA_GET_ASIZE(dva) != 0)
-#define ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3) \
-{ \
- (zcp)->zc_word[0] = w0; \
- (zcp)->zc_word[1] = w1; \
- (zcp)->zc_word[2] = w2; \
- (zcp)->zc_word[3] = w3; \
-}
-
#define BP_IDENTITY(bp) (ASSERT(!BP_IS_EMBEDDED(bp)), &(bp)->blk_dva[0])
#define BP_IS_GANG(bp) \
(BP_IS_EMBEDDED(bp) ? B_FALSE : DVA_GET_GANG(BP_IDENTITY(bp)))
#define BP_SHOULD_BYTESWAP(bp) (BP_GET_BYTEORDER(bp) != ZFS_HOST_BYTEORDER)
-#define BP_SPRINTF_LEN 320
+#define BP_SPRINTF_LEN 400
/*
* This macro allows code sharing between zfs, libzpool, and mdb.
{ "zero", "single", "double", "triple" }; \
int len = 0; \
int copies = 0; \
- int d; \
- \
+ const char *crypt_type; \
+ if (bp != NULL) { \
+ if (BP_IS_ENCRYPTED(bp)) { \
+ crypt_type = "encrypted"; \
+ /* LINTED E_SUSPICIOUS_COMPARISON */ \
+ } else if (BP_IS_AUTHENTICATED(bp)) { \
+ crypt_type = "authenticated"; \
+ } else if (BP_HAS_INDIRECT_MAC_CKSUM(bp)) { \
+ crypt_type = "indirect-MAC"; \
+ } else { \
+ crypt_type = "unencrypted"; \
+ } \
+ } \
if (bp == NULL) { \
len += func(buf + len, size - len, "<NULL>"); \
} else if (BP_IS_HOLE(bp)) { \
(u_longlong_t)BPE_GET_PSIZE(bp), \
(u_longlong_t)bp->blk_birth); \
} else { \
- for (d = 0; d < BP_GET_NDVAS(bp); d++) { \
+ for (int d = 0; d < BP_GET_NDVAS(bp); d++) { \
const dva_t *dva = &bp->blk_dva[d]; \
if (DVA_IS_VALID(dva)) \
copies++; \
(u_longlong_t)DVA_GET_ASIZE(dva), \
ws); \
} \
+ if (BP_IS_ENCRYPTED(bp)) { \
+ len += func(buf + len, size - len, \
+ "salt=%llx iv=%llx:%llx%c", \
+ (u_longlong_t)bp->blk_dva[2].dva_word[0], \
+ (u_longlong_t)bp->blk_dva[2].dva_word[1], \
+ (u_longlong_t)BP_GET_IV2(bp), \
+ ws); \
+ } \
if (BP_IS_GANG(bp) && \
DVA_GET_ASIZE(&bp->blk_dva[2]) <= \
DVA_GET_ASIZE(&bp->blk_dva[1]) / 2) \
copies--; \
len += func(buf + len, size - len, \
- "[L%llu %s] %s %s %s %s %s %s%c" \
+ "[L%llu %s] %s %s %s %s %s %s %s%c" \
"size=%llxL/%llxP birth=%lluL/%lluP fill=%llu%c" \
"cksum=%llx:%llx:%llx:%llx", \
(u_longlong_t)BP_GET_LEVEL(bp), \
type, \
checksum, \
compress, \
+ crypt_type, \
BP_GET_BYTEORDER(bp) == 0 ? "BE" : "LE", \
BP_IS_GANG(bp) ? "gang" : "contiguous", \
BP_GET_DEDUP(bp) ? "dedup" : "unique", \
ASSERT(len < size); \
}
-#include <sys/dmu.h>
-
#define BP_GET_BUFC_TYPE(bp) \
- (((BP_GET_LEVEL(bp) > 0) || (DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))) ? \
- ARC_BUFC_METADATA : ARC_BUFC_DATA)
+ (BP_IS_METADATA(bp) ? ARC_BUFC_METADATA : ARC_BUFC_DATA)
typedef enum spa_import_type {
SPA_IMPORT_EXISTING,
nvlist_t *policy, nvlist_t **config);
extern int spa_get_stats(const char *pool, nvlist_t **config, char *altroot,
size_t buflen);
-extern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props,
- nvlist_t *zplprops);
-extern int spa_import_rootpool(char *devpath, char *devid);
+extern int spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props,
+ nvlist_t *zplprops, struct dsl_crypto_params *dcp);
extern int spa_import(char *pool, nvlist_t *config, nvlist_t *props,
uint64_t flags);
extern nvlist_t *spa_tryimport(nvlist_t *tryconfig);
extern int spa_destroy(char *pool);
+extern int spa_checkpoint(const char *pool);
+extern int spa_checkpoint_discard(const char *pool);
extern int spa_export(char *pool, nvlist_t **oldconfig, boolean_t force,
boolean_t hardforce);
extern int spa_reset(char *pool);
#define SPA_ASYNC_AUTOEXPAND 0x20
#define SPA_ASYNC_REMOVE_DONE 0x40
#define SPA_ASYNC_REMOVE_STOP 0x80
+#define SPA_ASYNC_INITIALIZE_RESTART 0x100
/*
* Controls the behavior of spa_vdev_remove().
int replace_done);
extern int spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare);
extern boolean_t spa_vdev_remove_active(spa_t *spa);
+extern int spa_vdev_initialize(spa_t *spa, nvlist_t *nv, uint64_t cmd_type,
+ nvlist_t *vdev_errlist);
extern int spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath);
extern int spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru);
extern int spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config,
/* scanning */
extern int spa_scan(spa_t *spa, pool_scan_func_t func);
extern int spa_scan_stop(spa_t *spa);
+extern int spa_scrub_pause_resume(spa_t *spa, pool_scrub_cmd_t flag);
/* spa syncing */
extern void spa_sync(spa_t *spa, uint64_t txg); /* only for DMU use */
#define SPA_CONFIG_UPDATE_POOL 0
#define SPA_CONFIG_UPDATE_VDEVS 1
-extern void spa_config_sync(spa_t *, boolean_t, boolean_t);
+extern void spa_write_cachefile(spa_t *, boolean_t, boolean_t);
extern void spa_config_load(void);
extern nvlist_t *spa_all_configs(uint64_t *);
extern void spa_config_set(spa_t *spa, nvlist_t *config);
/* Refcount functions */
extern void spa_open_ref(spa_t *spa, void *tag);
extern void spa_close(spa_t *spa, void *tag);
+extern void spa_async_close(spa_t *spa, void *tag);
extern boolean_t spa_refcount_zero(spa_t *spa);
#define SCL_NONE 0x00
#define SCL_STATE_ALL (SCL_STATE | SCL_L2ARC | SCL_ZIO)
/* Historical pool statistics */
-typedef struct spa_stats_history {
+typedef struct spa_history_kstat {
kmutex_t lock;
uint64_t count;
uint64_t size;
kstat_t *kstat;
void *private;
list_t list;
-} spa_stats_history_t;
+} spa_history_kstat_t;
+
+typedef struct spa_history_list {
+ uint64_t size;
+ procfs_list_t procfs_list;
+} spa_history_list_t;
typedef struct spa_stats {
- spa_stats_history_t read_history;
- spa_stats_history_t txg_history;
- spa_stats_history_t tx_assign_histogram;
- spa_stats_history_t io_history;
+ spa_history_list_t read_history;
+ spa_history_list_t txg_history;
+ spa_history_kstat_t tx_assign_histogram;
+ spa_history_kstat_t io_history;
+ spa_history_list_t mmp_history;
+ spa_history_kstat_t state; /* pool state */
} spa_stats_t;
typedef enum txg_state {
TXG_STATE_COMMITTED = 5,
} txg_state_t;
+typedef struct txg_stat {
+ vdev_stat_t vs1;
+ vdev_stat_t vs2;
+ uint64_t txg;
+ uint64_t ndirty;
+} txg_stat_t;
+
extern void spa_stats_init(spa_t *spa);
extern void spa_stats_destroy(spa_t *spa);
extern void spa_read_history_add(spa_t *spa, const zbookmark_phys_t *zb,
extern void spa_txg_history_add(spa_t *spa, uint64_t txg, hrtime_t birth_time);
extern int spa_txg_history_set(spa_t *spa, uint64_t txg,
txg_state_t completed_state, hrtime_t completed_time);
-extern int spa_txg_history_set_io(spa_t *spa, uint64_t txg, uint64_t nread,
- uint64_t nwritten, uint64_t reads, uint64_t writes, uint64_t ndirty);
+extern txg_stat_t *spa_txg_history_init_io(spa_t *, uint64_t,
+ struct dsl_pool *);
+extern void spa_txg_history_fini_io(spa_t *, txg_stat_t *);
extern void spa_tx_assign_add_nsecs(spa_t *spa, uint64_t nsecs);
+extern int spa_mmp_history_set_skip(spa_t *spa, uint64_t mmp_kstat_id);
+extern int spa_mmp_history_set(spa_t *spa, uint64_t mmp_kstat_id, int io_error,
+ hrtime_t duration);
+extern void spa_mmp_history_add(spa_t *spa, uint64_t txg, uint64_t timestamp,
+ uint64_t mmp_delay, vdev_t *vd, int label, uint64_t mmp_kstat_id,
+ int error);
/* Pool configuration locks */
extern int spa_config_tryenter(spa_t *spa, int locks, void *tag, krw_t rw);
extern spa_log_state_t spa_get_log_state(spa_t *spa);
extern void spa_set_log_state(spa_t *spa, spa_log_state_t state);
-extern int spa_offline_log(spa_t *spa);
+extern int spa_reset_logs(spa_t *spa);
/* Log claim callback */
extern void spa_claim_notify(zio_t *zio);
extern boolean_t spa_shutting_down(spa_t *spa);
extern struct dsl_pool *spa_get_dsl(spa_t *spa);
extern boolean_t spa_is_initializing(spa_t *spa);
+extern boolean_t spa_indirect_vdevs_loaded(spa_t *spa);
extern blkptr_t *spa_get_rootblkptr(spa_t *spa);
extern void spa_set_rootblkptr(spa_t *spa, const blkptr_t *bp);
extern void spa_altroot(spa_t *, char *, size_t);
extern uint64_t spa_last_synced_txg(spa_t *spa);
extern uint64_t spa_first_txg(spa_t *spa);
extern uint64_t spa_syncing_txg(spa_t *spa);
+extern uint64_t spa_final_dirty_txg(spa_t *spa);
extern uint64_t spa_version(spa_t *spa);
extern pool_state_t spa_state(spa_t *spa);
extern spa_load_state_t spa_load_state(spa_t *spa);
extern uint64_t spa_freeze_txg(spa_t *spa);
-extern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize);
+extern uint64_t spa_get_worst_case_asize(spa_t *spa, uint64_t lsize);
extern uint64_t spa_get_dspace(spa_t *spa);
+extern uint64_t spa_get_checkpoint_space(spa_t *spa);
+extern uint64_t spa_get_slop_space(spa_t *spa);
extern void spa_update_dspace(spa_t *spa);
extern uint64_t spa_version(spa_t *spa);
extern boolean_t spa_deflate(spa_t *spa);
extern metaslab_class_t *spa_normal_class(spa_t *spa);
extern metaslab_class_t *spa_log_class(spa_t *spa);
+extern metaslab_class_t *spa_special_class(spa_t *spa);
+extern metaslab_class_t *spa_dedup_class(spa_t *spa);
+extern metaslab_class_t *spa_preferred_class(spa_t *spa, uint64_t size,
+ dmu_object_type_t objtype, uint_t level, uint_t special_smallblk);
+
+extern void spa_evicting_os_register(spa_t *, objset_t *os);
+extern void spa_evicting_os_deregister(spa_t *, objset_t *os);
+extern void spa_evicting_os_wait(spa_t *spa);
extern int spa_max_replication(spa_t *spa);
extern int spa_prev_software_version(spa_t *spa);
-extern int spa_busy(void);
-extern uint8_t spa_get_failmode(spa_t *spa);
+extern uint64_t spa_get_failmode(spa_t *spa);
+extern uint64_t spa_get_deadman_failmode(spa_t *spa);
+extern void spa_set_deadman_failmode(spa_t *spa, const char *failmode);
extern boolean_t spa_suspended(spa_t *spa);
extern uint64_t spa_bootfs(spa_t *spa);
extern uint64_t spa_delegation(spa_t *spa);
extern objset_t *spa_meta_objset(spa_t *spa);
extern uint64_t spa_deadman_synctime(spa_t *spa);
+extern uint64_t spa_deadman_ziotime(spa_t *spa);
+extern uint64_t spa_dirty_data(spa_t *spa);
/* Miscellaneous support routines */
+extern void spa_load_failed(spa_t *spa, const char *fmt, ...);
+extern void spa_load_note(spa_t *spa, const char *fmt, ...);
extern void spa_activate_mos_feature(spa_t *spa, const char *feature,
dmu_tx_t *tx);
extern void spa_deactivate_mos_feature(spa_t *spa, const char *feature);
-extern int spa_rename(const char *oldname, const char *newname);
extern spa_t *spa_by_guid(uint64_t pool_guid, uint64_t device_guid);
extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid);
extern char *spa_strdup(const char *);
extern boolean_t spa_is_root(spa_t *spa);
extern boolean_t spa_writeable(spa_t *spa);
extern boolean_t spa_has_pending_synctask(spa_t *spa);
+extern int spa_maxblocksize(spa_t *spa);
+extern int spa_maxdnodesize(spa_t *spa);
+extern boolean_t spa_has_checkpoint(spa_t *spa);
+extern boolean_t spa_importing_readonly_checkpoint(spa_t *spa);
+extern boolean_t spa_suspend_async_destroy(spa_t *spa);
+extern uint64_t spa_min_claim_txg(spa_t *spa);
+extern void zfs_blkptr_verify(spa_t *spa, const blkptr_t *bp);
+extern boolean_t zfs_dva_valid(spa_t *spa, const dva_t *dva,
+ const blkptr_t *bp);
+typedef void (*spa_remap_cb_t)(uint64_t vdev, uint64_t offset, uint64_t size,
+ void *arg);
+extern boolean_t spa_remap_blkptr(spa_t *spa, blkptr_t *bp,
+ spa_remap_cb_t callback, void *arg);
+extern uint64_t spa_get_last_removal_txg(spa_t *spa);
+extern boolean_t spa_trust_config(spa_t *spa);
+extern uint64_t spa_missing_tvds_allowed(spa_t *spa);
+extern void spa_set_missing_tvds(spa_t *spa, uint64_t missing);
+extern boolean_t spa_top_vdevs_spacemap_addressable(spa_t *spa);
+extern boolean_t spa_multihost(spa_t *spa);
+extern unsigned long spa_get_hostid(void);
+extern void spa_activate_allocation_classes(spa_t *, dmu_tx_t *);
extern int spa_mode(spa_t *spa);
-extern uint64_t strtonum(const char *str, char **nptr);
+extern uint64_t zfs_strtonum(const char *str, char **nptr);
extern char *spa_his_ievent_table[];
char *his_buf);
extern int spa_history_log(spa_t *spa, const char *his_buf);
extern int spa_history_log_nvl(spa_t *spa, nvlist_t *nvl);
-extern void spa_history_log_version(spa_t *spa, const char *operation);
+extern void spa_history_log_version(spa_t *spa, const char *operation,
+ dmu_tx_t *tx);
extern void spa_history_log_internal(spa_t *spa, const char *operation,
dmu_tx_t *tx, const char *fmt, ...);
extern void spa_history_log_internal_ds(struct dsl_dataset *ds, const char *op,
extern void spa_history_log_internal_dd(dsl_dir_t *dd, const char *operation,
dmu_tx_t *tx, const char *fmt, ...);
+extern const char *spa_state_to_name(spa_t *spa);
+
/* error handling */
struct zbookmark_phys;
-extern void spa_log_error(spa_t *spa, zio_t *zio);
-extern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd,
- zio_t *zio, uint64_t stateoroffset, uint64_t length);
+extern void spa_log_error(spa_t *spa, const zbookmark_phys_t *zb);
+extern int zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd,
+ const zbookmark_phys_t *zb, zio_t *zio, uint64_t stateoroffset,
+ uint64_t length);
+extern boolean_t zfs_ereport_is_valid(const char *class, spa_t *spa, vdev_t *vd,
+ zio_t *zio);
+extern nvlist_t *zfs_event_create(spa_t *spa, vdev_t *vd, const char *type,
+ const char *name, nvlist_t *aux);
extern void zfs_post_remove(spa_t *spa, vdev_t *vd);
-extern void zfs_post_state_change(spa_t *spa, vdev_t *vd);
+extern void zfs_post_state_change(spa_t *spa, vdev_t *vd, uint64_t laststate);
extern void zfs_post_autoreplace(spa_t *spa, vdev_t *vd);
extern uint64_t spa_get_errlog_size(spa_t *spa);
extern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count);
extern void vdev_cache_stat_init(void);
extern void vdev_cache_stat_fini(void);
+/* vdev mirror */
+extern void vdev_mirror_stat_init(void);
+extern void vdev_mirror_stat_fini(void);
+
/* Initialization and termination */
extern void spa_init(int flags);
extern void spa_fini(void);
extern void spa_configfile_set(spa_t *, nvlist_t *, boolean_t);
/* asynchronous event notification */
-extern void spa_event_notify(spa_t *spa, vdev_t *vdev, const char *name);
+extern void spa_event_notify(spa_t *spa, vdev_t *vdev, nvlist_t *hist_nvl,
+ const char *name);
#ifdef ZFS_DEBUG
#define dprintf_bp(bp, fmt, ...) do { \
#define dprintf_bp(bp, fmt, ...)
#endif
-extern boolean_t spa_debug_enabled(spa_t *spa);
-#define spa_dbgmsg(spa, ...) \
-{ \
- if (spa_debug_enabled(spa)) \
- zfs_dbgmsg(__VA_ARGS__); \
-}
-
extern int spa_mode_global; /* mode, e.g. FREAD | FWRITE */
+extern int zfs_deadman_enabled;
+extern unsigned long zfs_deadman_synctime_ms;
+extern unsigned long zfs_deadman_ziotime_ms;
+extern unsigned long zfs_deadman_checktime_ms;
#ifdef __cplusplus
}
projects / mirror_zfs.git / blobdiff