diff options
Diffstat (limited to 'include/sys/vdev_raidz_impl.h')
| -rw-r--r-- | include/sys/vdev_raidz_impl.h | 55 |
1 files changed, 38 insertions, 17 deletions
diff --git a/include/sys/vdev_raidz_impl.h b/include/sys/vdev_raidz_impl.h index 890e725e18d8..45cb5864a22b 100644 --- a/include/sys/vdev_raidz_impl.h +++ b/include/sys/vdev_raidz_impl.h @@ -6,7 +6,7 @@ * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. + * or https://opensource.org/licenses/CDDL-1.0. * See the License for the specific language governing permissions * and limitations under the License. * @@ -30,6 +30,8 @@ #include <sys/kstat.h> #include <sys/abd.h> #include <sys/vdev_impl.h> +#include <sys/abd_impl.h> +#include <sys/zfs_rlock.h> #ifdef __cplusplus extern "C" { @@ -102,35 +104,39 @@ typedef struct raidz_impl_ops { char name[RAIDZ_IMPL_NAME_MAX]; /* Name of the implementation */ } raidz_impl_ops_t; + typedef struct raidz_col { - uint64_t rc_devidx; /* child device index for I/O */ + int rc_devidx; /* child device index for I/O */ + uint32_t rc_size; /* I/O size */ uint64_t rc_offset; /* device offset */ - uint64_t rc_size; /* I/O size */ abd_t rc_abdstruct; /* rc_abd probably points here */ abd_t *rc_abd; /* I/O data */ abd_t *rc_orig_data; /* pre-reconstruction */ int rc_error; /* I/O error for this device */ - uint8_t rc_tried; /* Did we attempt this I/O column? */ - uint8_t rc_skipped; /* Did we skip this I/O column? */ - uint8_t rc_need_orig_restore; /* need to restore from orig_data? */ - uint8_t rc_force_repair; /* Write good data to this column */ - uint8_t rc_allow_repair; /* Allow repair I/O to this column */ + uint8_t rc_tried:1; /* Did we attempt this I/O column? */ + uint8_t rc_skipped:1; /* Did we skip this I/O column? */ + uint8_t rc_need_orig_restore:1; /* need to restore from orig_data? */ + uint8_t rc_force_repair:1; /* Write good data to this column */ + uint8_t rc_allow_repair:1; /* Allow repair I/O to this column */ + int rc_shadow_devidx; /* for double write during expansion */ + int rc_shadow_error; /* for double write during expansion */ + uint64_t rc_shadow_offset; /* for double write during expansion */ } raidz_col_t; typedef struct raidz_row { - uint64_t rr_cols; /* Regular column count */ - uint64_t rr_scols; /* Count including skipped columns */ - uint64_t rr_bigcols; /* Remainder data column count */ - uint64_t rr_missingdata; /* Count of missing data devices */ - uint64_t rr_missingparity; /* Count of missing parity devices */ - uint64_t rr_firstdatacol; /* First data column/parity count */ + int rr_cols; /* Regular column count */ + int rr_scols; /* Count including skipped columns */ + int rr_bigcols; /* Remainder data column count */ + int rr_missingdata; /* Count of missing data devices */ + int rr_missingparity; /* Count of missing parity devices */ + int rr_firstdatacol; /* First data column/parity count */ abd_t *rr_abd_empty; /* dRAID empty sector buffer */ int rr_nempty; /* empty sectors included in parity */ #ifdef ZFS_DEBUG uint64_t rr_offset; /* Logical offset for *_io_verify() */ uint64_t rr_size; /* Physical size for *_io_verify() */ #endif - raidz_col_t rr_col[0]; /* Flexible array of I/O columns */ + raidz_col_t rr_col[]; /* Flexible array of I/O columns */ } raidz_row_t; typedef struct raidz_map { @@ -138,10 +144,25 @@ typedef struct raidz_map { int rm_nrows; /* Regular row count */ int rm_nskip; /* RAIDZ sectors skipped for padding */ int rm_skipstart; /* Column index of padding start */ + int rm_original_width; /* pre-expansion width of raidz vdev */ + int rm_nphys_cols; /* num entries in rm_phys_col[] */ + zfs_locked_range_t *rm_lr; const raidz_impl_ops_t *rm_ops; /* RAIDZ math operations */ - raidz_row_t *rm_row[0]; /* flexible array of rows */ + raidz_col_t *rm_phys_col; /* if non-NULL, read i/o aggregation */ + raidz_row_t *rm_row[]; /* flexible array of rows */ } raidz_map_t; +/* + * Nodes in vdev_raidz_t:vd_expand_txgs. + * Blocks with physical birth time of re_txg or later have the specified + * logical width (until the next node). + */ +typedef struct reflow_node { + uint64_t re_txg; + uint64_t re_logical_width; + avl_node_t re_link; +} reflow_node_t; + #define RAIDZ_ORIGINAL_IMPL (INT_MAX) @@ -321,7 +342,7 @@ vdev_raidz_exp2(const uint8_t a, const unsigned exp) * Galois Field operations. * * gf_exp2 - computes 2 raised to the given power - * gf_exp2 - computes 4 raised to the given power + * gf_exp4 - computes 4 raised to the given power * gf_mul - multiplication * gf_div - division * gf_inv - multiplicative inverse |