diff options
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/ddt.h | 15 | ||||
| -rw-r--r-- | include/sys/dnode.h | 5 | ||||
| -rw-r--r-- | include/sys/dsl_pool.h | 1 | ||||
| -rw-r--r-- | include/sys/sa_impl.h | 37 | ||||
| -rw-r--r-- | include/sys/spa_impl.h | 2 | ||||
| -rw-r--r-- | include/sys/space_map.h | 1 | ||||
| -rw-r--r-- | include/sys/unique.h | 4 | ||||
| -rw-r--r-- | include/sys/vdev_impl.h | 10 | ||||
| -rw-r--r-- | include/sys/zap.h | 33 | ||||
| -rw-r--r-- | include/sys/zap_leaf.h | 15 | ||||
| -rw-r--r-- | include/sys/zfs_acl.h | 5 | ||||
| -rw-r--r-- | include/sys/zfs_rlock.h | 17 | ||||
| -rw-r--r-- | include/sys/zfs_znode.h | 16 | ||||
| -rw-r--r-- | include/sys/zil.h | 13 | ||||
| -rw-r--r-- | include/sys/zio_compress.h | 5 |
15 files changed, 87 insertions, 92 deletions
diff --git a/include/sys/ddt.h b/include/sys/ddt.h index 69432598b..ed41315cb 100644 --- a/include/sys/ddt.h +++ b/include/sys/ddt.h @@ -63,16 +63,15 @@ enum ddt_class { */ typedef struct ddt_key { zio_cksum_t ddk_cksum; /* 256-bit block checksum */ - uint64_t ddk_prop; /* LSIZE, PSIZE, compression */ + /* + * Encoded with logical & physical size, and compression, as follows: + * +-------+-------+-------+-------+-------+-------+-------+-------+ + * | 0 | 0 | 0 | comp | PSIZE | LSIZE | + * +-------+-------+-------+-------+-------+-------+-------+-------+ + */ + uint64_t ddk_prop; } ddt_key_t; -/* - * ddk_prop layout: - * - * +-------+-------+-------+-------+-------+-------+-------+-------+ - * | 0 | 0 | 0 | comp | PSIZE | LSIZE | - * +-------+-------+-------+-------+-------+-------+-------+-------+ - */ #define DDK_GET_LSIZE(ddk) \ BF64_GET_SB((ddk)->ddk_prop, 0, 16, SPA_MINBLOCKSHIFT, 1) #define DDK_SET_LSIZE(ddk, x) \ diff --git a/include/sys/dnode.h b/include/sys/dnode.h index 9f9134d8c..c3de03d36 100644 --- a/include/sys/dnode.h +++ b/include/sys/dnode.h @@ -145,9 +145,8 @@ typedef struct dnode_phys { typedef struct dnode { /* - * dn_struct_rwlock protects the structure of the dnode, - * including the number of levels of indirection (dn_nlevels), - * dn_maxblkid, and dn_next_* + * Protects the structure of the dnode, including the number of levels + * of indirection (dn_nlevels), dn_maxblkid, and dn_next_* */ krwlock_t dn_struct_rwlock; diff --git a/include/sys/dsl_pool.h b/include/sys/dsl_pool.h index 25abd9c03..0f9471486 100644 --- a/include/sys/dsl_pool.h +++ b/include/sys/dsl_pool.h @@ -112,6 +112,7 @@ typedef struct dsl_pool { /* * Protects administrative changes (properties, namespace) + * * It is only held for write in syncing context. Therefore * syncing context does not need to ever have it for read, since * nobody else could possibly have it for write. diff --git a/include/sys/sa_impl.h b/include/sys/sa_impl.h index 8ae05ce36..582bd76f0 100644 --- a/include/sys/sa_impl.h +++ b/include/sys/sa_impl.h @@ -150,6 +150,7 @@ struct sa_os { /* * header for all bonus and spill buffers. + * * The header has a fixed portion with a variable number * of "lengths" depending on the number of variable sized * attribues which are determined by the "layout number" @@ -158,29 +159,27 @@ struct sa_os { #define SA_MAGIC 0x2F505A /* ZFS SA */ typedef struct sa_hdr_phys { uint32_t sa_magic; - uint16_t sa_layout_info; /* Encoded with hdrsize and layout number */ + /* + * Encoded with hdrsize and layout number as follows: + * 16 10 0 + * +--------+-------+ + * | hdrsz |layout | + * +--------+-------+ + * + * Bits 0-10 are the layout number + * Bits 11-16 are the size of the header. + * The hdrsize is the number * 8 + * + * For example. + * hdrsz of 1 ==> 8 byte header + * 2 ==> 16 byte header + * + */ + uint16_t sa_layout_info; uint16_t sa_lengths[1]; /* optional sizes for variable length attrs */ /* ... Data follows the lengths. */ } sa_hdr_phys_t; -/* - * sa_hdr_phys -> sa_layout_info - * - * 16 10 0 - * +--------+-------+ - * | hdrsz |layout | - * +--------+-------+ - * - * Bits 0-10 are the layout number - * Bits 11-16 are the size of the header. - * The hdrsize is the number * 8 - * - * For example. - * hdrsz of 1 ==> 8 byte header - * 2 ==> 16 byte header - * - */ - #define SA_HDR_LAYOUT_NUM(hdr) BF32_GET(hdr->sa_layout_info, 0, 10) #define SA_HDR_SIZE(hdr) BF32_GET_SB(hdr->sa_layout_info, 10, 6, 3, 0) #define SA_HDR_LAYOUT_INFO_ENCODE(x, num, size) \ diff --git a/include/sys/spa_impl.h b/include/sys/spa_impl.h index 107d14a76..2e65ce845 100644 --- a/include/sys/spa_impl.h +++ b/include/sys/spa_impl.h @@ -239,7 +239,7 @@ struct spa { spa_stats_t spa_stats; /* assorted spa statistics */ /* - * spa_refcnt & spa_config_lock must be the last elements + * spa_refcount & spa_config_lock must be the last elements * because refcount_t changes size based on compilation options. * In order for the MDB module to function correctly, the other * fields must remain in the same location. diff --git a/include/sys/space_map.h b/include/sys/space_map.h index c53074a00..588feb8e8 100644 --- a/include/sys/space_map.h +++ b/include/sys/space_map.h @@ -94,7 +94,6 @@ struct space_map_ops { * 63 62 60 59 50 49 0 * * - * * non-debug entry * * 1 47 1 15 diff --git a/include/sys/unique.h b/include/sys/unique.h index d97175286..d4ba32e5c 100644 --- a/include/sys/unique.h +++ b/include/sys/unique.h @@ -26,8 +26,6 @@ #ifndef _SYS_UNIQUE_H #define _SYS_UNIQUE_H - - #include <sys/zfs_context.h> #ifdef __cplusplus @@ -42,7 +40,7 @@ void unique_fini(void); /* * Return a new unique value (which will not be uniquified against until - * it is unique_insert()-ed. + * it is unique_insert()-ed). */ uint64_t unique_create(void); diff --git a/include/sys/vdev_impl.h b/include/sys/vdev_impl.h index e0669cc0b..af6602083 100644 --- a/include/sys/vdev_impl.h +++ b/include/sys/vdev_impl.h @@ -254,12 +254,13 @@ typedef struct vdev_label { #define VDD_METASLAB 0x01 #define VDD_DTL 0x02 +/* Offset of embedded boot loader region on each label */ +#define VDEV_BOOT_OFFSET (2 * sizeof (vdev_label_t)) /* - * Size and offset of embedded boot loader region on each label. + * Size of embedded boot loader region on each label. * The total size of the first two labels plus the boot area is 4MB. */ -#define VDEV_BOOT_OFFSET (2 * sizeof (vdev_label_t)) -#define VDEV_BOOT_SIZE (7ULL << 19) /* 3.5M */ +#define VDEV_BOOT_SIZE (7ULL << 19) /* 3.5M */ /* * Size of label regions at the start and end of each leaf device. @@ -326,8 +327,9 @@ extern uint64_t vdev_get_min_asize(vdev_t *vd); extern void vdev_set_min_asize(vdev_t *vd); /* - * zdb uses this tunable, so it must be declared here to make lint happy. + * Global variables */ +/* zdb uses this tunable, so it must be declared here to make lint happy. */ extern int zfs_vdev_cache_size; #ifdef __cplusplus diff --git a/include/sys/zap.h b/include/sys/zap.h index 092669c8b..aabfca7ba 100644 --- a/include/sys/zap.h +++ b/include/sys/zap.h @@ -86,18 +86,22 @@ extern "C" { #endif /* - * The matchtype specifies which entry will be accessed. - * MT_EXACT: only find an exact match (non-normalized) - * MT_FIRST: find the "first" normalized (case and Unicode - * form) match; the designated "first" match will not change as long - * as the set of entries with this normalization doesn't change - * MT_BEST: if there is an exact match, find that, otherwise find the - * first normalized match + * Specifies matching criteria for ZAP lookups. */ typedef enum matchtype { + /* Only find an exact match (non-normalized) */ MT_EXACT, + /* + * If there is an exact match, find that, otherwise find the + * first normalized match. + */ MT_BEST, + /* + * Find the "first" normalized (case and Unicode form) match; + * the designated "first" match will not change as long as the + * set of entries with this normalization doesn't change. + */ MT_FIRST } matchtype_t; @@ -174,16 +178,21 @@ int zap_destroy(objset_t *ds, uint64_t zapobj, dmu_tx_t *tx); * call will fail and return EINVAL. * * If 'integer_size' is equal to or larger than the attribute's integer - * size, the call will succeed and return 0. * When converting to a - * larger integer size, the integers will be treated as unsigned (ie. no - * sign-extension will be performed). + * size, the call will succeed and return 0. + * + * When converting to a larger integer size, the integers will be treated as + * unsigned (ie. no sign-extension will be performed). * * 'num_integers' is the length (in integers) of 'buf'. * * If the attribute is longer than the buffer, as many integers as will * fit will be transferred to 'buf'. If the entire attribute was not * transferred, the call will return EOVERFLOW. - * + */ +int zap_lookup(objset_t *ds, uint64_t zapobj, const char *name, + uint64_t integer_size, uint64_t num_integers, void *buf); + +/* * If rn_len is nonzero, realname will be set to the name of the found * entry (which may be different from the requested name if matchtype is * not MT_EXACT). @@ -191,8 +200,6 @@ int zap_destroy(objset_t *ds, uint64_t zapobj, dmu_tx_t *tx); * If normalization_conflictp is not NULL, it will be set if there is * another name with the same case/unicode normalized form. */ -int zap_lookup(objset_t *ds, uint64_t zapobj, const char *name, - uint64_t integer_size, uint64_t num_integers, void *buf); int zap_lookup_norm(objset_t *ds, uint64_t zapobj, const char *name, uint64_t integer_size, uint64_t num_integers, void *buf, matchtype_t mt, char *realname, int rn_len, diff --git a/include/sys/zap_leaf.h b/include/sys/zap_leaf.h index 3a3363674..f6947a72d 100644 --- a/include/sys/zap_leaf.h +++ b/include/sys/zap_leaf.h @@ -101,6 +101,7 @@ typedef enum zap_chunk_type { */ typedef struct zap_leaf_phys { struct zap_leaf_header { + /* Public to ZAP */ uint64_t lh_block_type; /* ZBT_LEAF */ uint64_t lh_pad1; uint64_t lh_prefix; /* hash prefix of this leaf */ @@ -109,8 +110,7 @@ typedef struct zap_leaf_phys { uint16_t lh_nentries; /* number of entries */ uint16_t lh_prefix_len; /* num bits used to id this */ -/* above is accessable to zap, below is zap_leaf private */ - + /* Private to zap_leaf */ uint16_t lh_freelist; /* chunk head of free list */ uint8_t lh_flags; /* ZLF_* flags */ uint8_t lh_pad2[11]; @@ -161,13 +161,13 @@ typedef struct zap_leaf { typedef struct zap_entry_handle { - /* below is set by zap_leaf.c and is public to zap.c */ + /* Set by zap_leaf and public to ZAP */ uint64_t zeh_num_integers; uint64_t zeh_hash; uint32_t zeh_cd; uint8_t zeh_integer_size; - /* below is private to zap_leaf.c */ + /* Private to zap_leaf */ uint16_t zeh_fakechunk; uint16_t *zeh_chunkp; zap_leaf_t *zeh_leaf; @@ -202,7 +202,7 @@ extern int zap_entry_read_name(struct zap *zap, const zap_entry_handle_t *zeh, /* * Replace the value of an existing entry. * - * zap_entry_update may fail if it runs out of space (ENOSPC). + * May fail if it runs out of space (ENOSPC). */ extern int zap_entry_update(zap_entry_handle_t *zeh, uint8_t integer_size, uint64_t num_integers, const void *buf); @@ -221,10 +221,7 @@ extern int zap_entry_create(zap_leaf_t *l, struct zap_name *zn, uint32_t cd, uint8_t integer_size, uint64_t num_integers, const void *buf, zap_entry_handle_t *zeh); -/* - * Return true if there are additional entries with the same normalized - * form. - */ +/* Determine whether there is another entry with the same normalized form. */ extern boolean_t zap_entry_normalization_conflict(zap_entry_handle_t *zeh, struct zap_name *zn, const char *name, struct zap *zap); diff --git a/include/sys/zfs_acl.h b/include/sys/zfs_acl.h index 11fc3351e..2c51f096e 100644 --- a/include/sys/zfs_acl.h +++ b/include/sys/zfs_acl.h @@ -47,7 +47,8 @@ struct znode_phys; #define ZFS_ACL_VERSION ZFS_ACL_VERSION_FUID /* - * ZFS ACLs are store in various forms. + * ZFS ACLs (Access Control Lists) are stored in various forms. + * * Files created with ACL version ZFS_ACL_VERSION_INITIAL * will all be created with fixed length ACEs of type * zfs_oldace_t. @@ -137,8 +138,8 @@ typedef struct acl_ops { size_t (*ace_size)(void *acep); /* how big is this ace */ size_t (*ace_abstract_size)(void); /* sizeof abstract entry */ int (*ace_mask_off)(void); /* off of access mask in ace */ + /* ptr to data if any */ int (*ace_data)(void *acep, void **datap); - /* ptr to data if any */ } acl_ops_t; /* diff --git a/include/sys/zfs_rlock.h b/include/sys/zfs_rlock.h index da18b1f18..ea5e40369 100644 --- a/include/sys/zfs_rlock.h +++ b/include/sys/zfs_rlock.h @@ -26,8 +26,6 @@ #ifndef _SYS_FS_ZFS_RLOCK_H #define _SYS_FS_ZFS_RLOCK_H - - #ifdef __cplusplus extern "C" { #endif @@ -58,16 +56,14 @@ typedef struct rl { } rl_t; /* - * Lock a range (offset, length) as either shared (READER) - * or exclusive (WRITER or APPEND). APPEND is a special type that - * is converted to WRITER that specified to lock from the start of the - * end of file. zfs_range_lock() returns the range lock structure. + * Lock a range (offset, length) as either shared (RL_READER) + * or exclusive (RL_WRITER or RL_APPEND). RL_APPEND is a special type that + * is converted to RL_WRITER that specified to lock from the start of the + * end of file. Returns the range lock structure. */ rl_t *zfs_range_lock(znode_t *zp, uint64_t off, uint64_t len, rl_type_t type); -/* - * Unlock range and destroy range lock structure. - */ +/* Unlock range and destroy range lock structure. */ void zfs_range_unlock(rl_t *rl); /* @@ -77,7 +73,8 @@ void zfs_range_unlock(rl_t *rl); void zfs_range_reduce(rl_t *rl, uint64_t off, uint64_t len); /* - * AVL comparison function used to compare range locks + * AVL comparison function used to order range locks + * Locks are ordered on the start offset of the range. */ int zfs_range_compare(const void *arg1, const void *arg2); diff --git a/include/sys/zfs_znode.h b/include/sys/zfs_znode.h index aa9d9d288..b5ab7dbae 100644 --- a/include/sys/zfs_znode.h +++ b/include/sys/zfs_znode.h @@ -139,8 +139,9 @@ extern "C" { #define ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE) -/* Path component length */ /* + * Path component length + * * The generic fs code uses MAXNAMELEN to represent * what the largest component length is. Unfortunately, * this length includes the terminating NULL. ZFS needs @@ -248,11 +249,7 @@ typedef struct znode { #define S_ISDEV(mode) (S_ISCHR(mode) || S_ISBLK(mode) || S_ISFIFO(mode)) -/* - * ZFS_ENTER() is called on entry to each ZFS inode and vfs operation. - * ZFS_EXIT() must be called before exitting the vop. - * ZFS_VERIFY_ZP() verifies the znode is valid. - */ +/* Called on entry to each ZFS vnode and vfs operation */ #define ZFS_ENTER(zsb) \ { \ rrw_enter_read(&(zsb)->z_teardown_lock, FTAG); \ @@ -262,12 +259,14 @@ typedef struct znode { } \ } +/* Must be called before exiting the vop */ #define ZFS_EXIT(zsb) \ { \ rrw_exit(&(zsb)->z_teardown_lock, FTAG); \ tsd_exit(); \ } +/* Verifies the znode is valid */ #define ZFS_VERIFY_ZP(zp) \ if ((zp)->z_sa_hdl == NULL) { \ ZFS_EXIT(ZTOZSB(zp)); \ @@ -289,15 +288,14 @@ typedef struct znode { #define ZFS_OBJ_HOLD_OWNED(zsb, obj_num) \ mutex_owned(ZFS_OBJ_MUTEX((zsb), (obj_num))) -/* - * Macros to encode/decode ZFS stored time values from/to struct timespec - */ +/* Encode ZFS stored time values from a struct timespec */ #define ZFS_TIME_ENCODE(tp, stmp) \ { \ (stmp)[0] = (uint64_t)(tp)->tv_sec; \ (stmp)[1] = (uint64_t)(tp)->tv_nsec; \ } +/* Decode ZFS stored time values to a struct timespec */ #define ZFS_TIME_DECODE(tp, stmp) \ { \ (tp)->tv_sec = (time_t)(stmp)[0]; \ diff --git a/include/sys/zil.h b/include/sys/zil.h index f3e00101b..d3e4b8ec6 100644 --- a/include/sys/zil.h +++ b/include/sys/zil.h @@ -242,6 +242,12 @@ typedef struct { * information needed for replaying the create. If the * file doesn't have any actual ACEs then the lr_aclcnt * would be zero. + * + * After lr_acl_flags, there are a lr_acl_bytes number of variable sized ace's. + * If create is also setting xvattr's, then acl data follows xvattr. + * If ACE FUIDs are needed then they will follow the xvattr_t. Following + * the FUIDs will be the domain table information. The FUIDs for the owner + * and group will be in lr_create. Name follows ACL data. */ typedef struct { lr_create_t lr_create; /* common create portion */ @@ -250,13 +256,6 @@ typedef struct { uint64_t lr_fuidcnt; /* number of real fuids */ uint64_t lr_acl_bytes; /* number of bytes in ACL */ uint64_t lr_acl_flags; /* ACL flags */ - /* lr_acl_bytes number of variable sized ace's follows */ - /* if create is also setting xvattr's, then acl data follows xvattr */ - /* if ACE FUIDs are needed then they will follow the xvattr_t */ - /* Following the FUIDs will be the domain table information. */ - /* The FUIDs for the owner and group will be in the lr_create */ - /* portion of the record. */ - /* name follows ACL data */ } lr_acl_create_t; typedef struct { diff --git a/include/sys/zio_compress.h b/include/sys/zio_compress.h index e4b565d5e..63863c713 100644 --- a/include/sys/zio_compress.h +++ b/include/sys/zio_compress.h @@ -33,11 +33,10 @@ extern "C" { #endif -/* - * Common signature for all zio compress/decompress functions. - */ +/* Common signature for all zio compress functions. */ typedef size_t zio_compress_func_t(void *src, void *dst, size_t s_len, size_t d_len, int); +/* Common signature for all zio decompress functions. */ typedef int zio_decompress_func_t(void *src, void *dst, size_t s_len, size_t d_len, int); |