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Linux/include/linux/blk_types.h

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Diff markup

Differences between /include/linux/blk_types.h (Version linux-4.5.7) and /include/linux/blk_types.h (Version linux-4.11.12)


  1 /*                                                  1 /*
  2  * Block data types and constants.  Directly i      2  * Block data types and constants.  Directly include this file only to
  3  * break include dependency loop.                   3  * break include dependency loop.
  4  */                                                 4  */
  5 #ifndef __LINUX_BLK_TYPES_H                         5 #ifndef __LINUX_BLK_TYPES_H
  6 #define __LINUX_BLK_TYPES_H                         6 #define __LINUX_BLK_TYPES_H
  7                                                     7 
  8 #include <linux/types.h>                            8 #include <linux/types.h>
                                                   >>   9 #include <linux/bvec.h>
  9                                                    10 
 10 struct bio_set;                                    11 struct bio_set;
 11 struct bio;                                        12 struct bio;
 12 struct bio_integrity_payload;                      13 struct bio_integrity_payload;
 13 struct page;                                       14 struct page;
 14 struct block_device;                               15 struct block_device;
 15 struct io_context;                                 16 struct io_context;
 16 struct cgroup_subsys_state;                        17 struct cgroup_subsys_state;
 17 typedef void (bio_end_io_t) (struct bio *);        18 typedef void (bio_end_io_t) (struct bio *);
 18 typedef void (bio_destructor_t) (struct bio *) << 
 19                                                << 
 20 /*                                             << 
 21  * was unsigned short, but we might as well be << 
 22  */                                            << 
 23 struct bio_vec {                               << 
 24         struct page     *bv_page;              << 
 25         unsigned int    bv_len;                << 
 26         unsigned int    bv_offset;             << 
 27 };                                             << 
 28                                                << 
 29 #ifdef CONFIG_BLOCK                            << 
 30                                                << 
 31 struct bvec_iter {                             << 
 32         sector_t                bi_sector;     << 
 33                                                << 
 34         unsigned int            bi_size;       << 
 35                                                << 
 36         unsigned int            bi_idx;        << 
 37                                                << 
 38         unsigned int            bi_bvec_done;  << 
 39                                                << 
 40 };                                             << 
 41                                                    19 
 42 /*                                                 20 /*
 43  * main unit of I/O for the block layer and lo     21  * main unit of I/O for the block layer and lower layers (ie drivers and
 44  * stacking drivers)                               22  * stacking drivers)
 45  */                                                23  */
 46 struct bio {                                       24 struct bio {
 47         struct bio              *bi_next;          25         struct bio              *bi_next;       /* request queue link */
 48         struct block_device     *bi_bdev;          26         struct block_device     *bi_bdev;
 49         unsigned int            bi_flags;      << 
 50         int                     bi_error;          27         int                     bi_error;
 51         unsigned long           bi_rw;         !!  28         unsigned int            bi_opf;         /* bottom bits req flags,
 52                                                !!  29                                                  * top bits REQ_OP. Use
                                                   >>  30                                                  * accessors.
 53                                                    31                                                  */
                                                   >>  32         unsigned short          bi_flags;       /* status, command, etc */
                                                   >>  33         unsigned short          bi_ioprio;
 54                                                    34 
 55         struct bvec_iter        bi_iter;           35         struct bvec_iter        bi_iter;
 56                                                    36 
 57         /* Number of segments in this BIO afte     37         /* Number of segments in this BIO after
 58          * physical address coalescing is perf     38          * physical address coalescing is performed.
 59          */                                        39          */
 60         unsigned int            bi_phys_segmen     40         unsigned int            bi_phys_segments;
 61                                                    41 
 62         /*                                         42         /*
 63          * To keep track of the max segment si     43          * To keep track of the max segment size, we account for the
 64          * sizes of the first and last mergeab     44          * sizes of the first and last mergeable segments in this bio.
 65          */                                        45          */
 66         unsigned int            bi_seg_front_s     46         unsigned int            bi_seg_front_size;
 67         unsigned int            bi_seg_back_si     47         unsigned int            bi_seg_back_size;
 68                                                    48 
 69         atomic_t                __bi_remaining     49         atomic_t                __bi_remaining;
 70                                                    50 
 71         bio_end_io_t            *bi_end_io;        51         bio_end_io_t            *bi_end_io;
 72                                                    52 
 73         void                    *bi_private;       53         void                    *bi_private;
 74 #ifdef CONFIG_BLK_CGROUP                           54 #ifdef CONFIG_BLK_CGROUP
 75         /*                                         55         /*
 76          * Optional ioc and css associated wit     56          * Optional ioc and css associated with this bio.  Put on bio
 77          * release.  Read comment on top of bi     57          * release.  Read comment on top of bio_associate_current().
 78          */                                        58          */
 79         struct io_context       *bi_ioc;           59         struct io_context       *bi_ioc;
 80         struct cgroup_subsys_state *bi_css;        60         struct cgroup_subsys_state *bi_css;
 81 #endif                                             61 #endif
 82         union {                                    62         union {
 83 #if defined(CONFIG_BLK_DEV_INTEGRITY)              63 #if defined(CONFIG_BLK_DEV_INTEGRITY)
 84                 struct bio_integrity_payload *     64                 struct bio_integrity_payload *bi_integrity; /* data integrity */
 85 #endif                                             65 #endif
 86         };                                         66         };
 87                                                    67 
 88         unsigned short          bi_vcnt;           68         unsigned short          bi_vcnt;        /* how many bio_vec's */
 89                                                    69 
 90         /*                                         70         /*
 91          * Everything starting with bi_max_vec     71          * Everything starting with bi_max_vecs will be preserved by bio_reset()
 92          */                                        72          */
 93                                                    73 
 94         unsigned short          bi_max_vecs;       74         unsigned short          bi_max_vecs;    /* max bvl_vecs we can hold */
 95                                                    75 
 96         atomic_t                __bi_cnt;          76         atomic_t                __bi_cnt;       /* pin count */
 97                                                    77 
 98         struct bio_vec          *bi_io_vec;        78         struct bio_vec          *bi_io_vec;     /* the actual vec list */
 99                                                    79 
100         struct bio_set          *bi_pool;          80         struct bio_set          *bi_pool;
101                                                    81 
102         /*                                         82         /*
103          * We can inline a number of vecs at t     83          * We can inline a number of vecs at the end of the bio, to avoid
104          * double allocations for a small numb     84          * double allocations for a small number of bio_vecs. This member
105          * MUST obviously be kept at the very      85          * MUST obviously be kept at the very end of the bio.
106          */                                        86          */
107         struct bio_vec          bi_inline_vecs     87         struct bio_vec          bi_inline_vecs[0];
108 };                                                 88 };
109                                                    89 
110 #define BIO_RESET_BYTES         offsetof(struc     90 #define BIO_RESET_BYTES         offsetof(struct bio, bi_max_vecs)
111                                                    91 
112 /*                                                 92 /*
113  * bio flags                                       93  * bio flags
114  */                                                94  */
115 #define BIO_SEG_VALID   1       /* bi_phys_seg     95 #define BIO_SEG_VALID   1       /* bi_phys_segments valid */
116 #define BIO_CLONED      2       /* doesn't own     96 #define BIO_CLONED      2       /* doesn't own data */
117 #define BIO_BOUNCED     3       /* bio is a bo     97 #define BIO_BOUNCED     3       /* bio is a bounce bio */
118 #define BIO_USER_MAPPED 4       /* contains us     98 #define BIO_USER_MAPPED 4       /* contains user pages */
119 #define BIO_NULL_MAPPED 5       /* contains in     99 #define BIO_NULL_MAPPED 5       /* contains invalid user pages */
120 #define BIO_QUIET       6       /* Make BIO Qu    100 #define BIO_QUIET       6       /* Make BIO Quiet */
121 #define BIO_CHAIN       7       /* chained bio    101 #define BIO_CHAIN       7       /* chained bio, ->bi_remaining in effect */
122 #define BIO_REFFED      8       /* bio has ele    102 #define BIO_REFFED      8       /* bio has elevated ->bi_cnt */
                                                   >> 103 #define BIO_THROTTLED   9       /* This bio has already been subjected to
                                                   >> 104                                  * throttling rules. Don't do it again. */
123                                                   105 
124 /*                                                106 /*
125  * Flags starting here get preserved by bio_re    107  * Flags starting here get preserved by bio_reset() - this includes
126  * BIO_POOL_IDX()                              !! 108  * BVEC_POOL_IDX()
127  */                                               109  */
128 #define BIO_RESET_BITS  13                     !! 110 #define BIO_RESET_BITS  10
129 #define BIO_OWNS_VEC    13      /* bio_free()  << 
130                                                   111 
131 /*                                                112 /*
132  * top 4 bits of bio flags indicate the pool t !! 113  * We support 6 different bvec pools, the last one is magic in that it
                                                   >> 114  * is backed by a mempool.
133  */                                               115  */
134 #define BIO_POOL_BITS           (4)            !! 116 #define BVEC_POOL_NR            6
135 #define BIO_POOL_NONE           ((1UL << BIO_P !! 117 #define BVEC_POOL_MAX           (BVEC_POOL_NR - 1)
136 #define BIO_POOL_OFFSET         (32 - BIO_POOL << 
137 #define BIO_POOL_MASK           (1UL << BIO_PO << 
138 #define BIO_POOL_IDX(bio)       ((bio)->bi_fla << 
139                                                   118 
140 #endif /* CONFIG_BLOCK */                      !! 119 /*
                                                   >> 120  * Top 4 bits of bio flags indicate the pool the bvecs came from.  We add
                                                   >> 121  * 1 to the actual index so that 0 indicates that there are no bvecs to be
                                                   >> 122  * freed.
                                                   >> 123  */
                                                   >> 124 #define BVEC_POOL_BITS          (4)
                                                   >> 125 #define BVEC_POOL_OFFSET        (16 - BVEC_POOL_BITS)
                                                   >> 126 #define BVEC_POOL_IDX(bio)      ((bio)->bi_flags >> BVEC_POOL_OFFSET)
141                                                   127 
142 /*                                                128 /*
143  * Request flags.  For use in the cmd_flags fi !! 129  * Operations and flags common to the bio and request structures.
144  * bi_rw of struct bio.  Note that some flags  !! 130  * We use 8 bits for encoding the operation, and the remaining 24 for flags.
                                                   >> 131  *
                                                   >> 132  * The least significant bit of the operation number indicates the data
                                                   >> 133  * transfer direction:
                                                   >> 134  *
                                                   >> 135  *   - if the least significant bit is set transfers are TO the device
                                                   >> 136  *   - if the least significant bit is not set transfers are FROM the device
                                                   >> 137  *
                                                   >> 138  * If a operation does not transfer data the least significant bit has no
                                                   >> 139  * meaning.
145  */                                               140  */
146 enum rq_flag_bits {                            !! 141 #define REQ_OP_BITS     8
147         /* common flags */                     !! 142 #define REQ_OP_MASK     ((1 << REQ_OP_BITS) - 1)
148         __REQ_WRITE,            /* not set, re !! 143 #define REQ_FLAG_BITS   24
149         __REQ_FAILFAST_DEV,     /* no driver r !! 144 
                                                   >> 145 enum req_opf {
                                                   >> 146         /* read sectors from the device */
                                                   >> 147         REQ_OP_READ             = 0,
                                                   >> 148         /* write sectors to the device */
                                                   >> 149         REQ_OP_WRITE            = 1,
                                                   >> 150         /* flush the volatile write cache */
                                                   >> 151         REQ_OP_FLUSH            = 2,
                                                   >> 152         /* discard sectors */
                                                   >> 153         REQ_OP_DISCARD          = 3,
                                                   >> 154         /* get zone information */
                                                   >> 155         REQ_OP_ZONE_REPORT      = 4,
                                                   >> 156         /* securely erase sectors */
                                                   >> 157         REQ_OP_SECURE_ERASE     = 5,
                                                   >> 158         /* seset a zone write pointer */
                                                   >> 159         REQ_OP_ZONE_RESET       = 6,
                                                   >> 160         /* write the same sector many times */
                                                   >> 161         REQ_OP_WRITE_SAME       = 7,
                                                   >> 162         /* write the zero filled sector many times */
                                                   >> 163         REQ_OP_WRITE_ZEROES     = 8,
                                                   >> 164 
                                                   >> 165         /* SCSI passthrough using struct scsi_request */
                                                   >> 166         REQ_OP_SCSI_IN          = 32,
                                                   >> 167         REQ_OP_SCSI_OUT         = 33,
                                                   >> 168         /* Driver private requests */
                                                   >> 169         REQ_OP_DRV_IN           = 34,
                                                   >> 170         REQ_OP_DRV_OUT          = 35,
                                                   >> 171 
                                                   >> 172         REQ_OP_LAST,
                                                   >> 173 };
                                                   >> 174 
                                                   >> 175 enum req_flag_bits {
                                                   >> 176         __REQ_FAILFAST_DEV =    /* no driver retries of device errors */
                                                   >> 177                 REQ_OP_BITS,
150         __REQ_FAILFAST_TRANSPORT, /* no driver    178         __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */
151         __REQ_FAILFAST_DRIVER,  /* no driver r    179         __REQ_FAILFAST_DRIVER,  /* no driver retries of driver errors */
152                                                << 
153         __REQ_SYNC,             /* request is     180         __REQ_SYNC,             /* request is sync (sync write or read) */
154         __REQ_META,             /* metadata io    181         __REQ_META,             /* metadata io request */
155         __REQ_PRIO,             /* boost prior    182         __REQ_PRIO,             /* boost priority in cfq */
156         __REQ_DISCARD,          /* request to  !! 183         __REQ_NOMERGE,          /* don't touch this for merging */
157         __REQ_SECURE,           /* secure disc !! 184         __REQ_IDLE,             /* anticipate more IO after this one */
158         __REQ_WRITE_SAME,       /* write same  << 
159                                                << 
160         __REQ_NOIDLE,           /* don't antic << 
161         __REQ_INTEGRITY,        /* I/O include    185         __REQ_INTEGRITY,        /* I/O includes block integrity payload */
162         __REQ_FUA,              /* forced unit    186         __REQ_FUA,              /* forced unit access */
163         __REQ_FLUSH,            /* request for !! 187         __REQ_PREFLUSH,         /* request for cache flush */
164                                                << 
165         /* bio only flags */                   << 
166         __REQ_RAHEAD,           /* read ahead,    188         __REQ_RAHEAD,           /* read ahead, can fail anytime */
167         __REQ_THROTTLED,        /* This bio ha !! 189         __REQ_BACKGROUND,       /* background IO */
168                                  * throttling  << 
169                                                << 
170         /* request only flags */               << 
171         __REQ_SORTED,           /* elevator kn << 
172         __REQ_SOFTBARRIER,      /* may not be  << 
173         __REQ_NOMERGE,          /* don't touch << 
174         __REQ_STARTED,          /* drive alrea << 
175         __REQ_DONTPREP,         /* don't call  << 
176         __REQ_QUEUED,           /* uses queuei << 
177         __REQ_ELVPRIV,          /* elevator pr << 
178         __REQ_FAILED,           /* set if the  << 
179         __REQ_QUIET,            /* don't worry << 
180         __REQ_PREEMPT,          /* set for "id << 
181                                    for request << 
182                                    state must  << 
183         __REQ_ALLOCED,          /* request cam << 
184         __REQ_COPY_USER,        /* contains co << 
185         __REQ_FLUSH_SEQ,        /* request for << 
186         __REQ_IO_STAT,          /* account I/O << 
187         __REQ_MIXED_MERGE,      /* merge of di << 
188         __REQ_PM,               /* runtime pm  << 
189         __REQ_HASHED,           /* on IO sched << 
190         __REQ_MQ_INFLIGHT,      /* track infli << 
191         __REQ_NR_BITS,          /* stops here     190         __REQ_NR_BITS,          /* stops here */
192 };                                                191 };
193                                                   192 
194 #define REQ_WRITE               (1ULL << __REQ << 
195 #define REQ_FAILFAST_DEV        (1ULL << __REQ    193 #define REQ_FAILFAST_DEV        (1ULL << __REQ_FAILFAST_DEV)
196 #define REQ_FAILFAST_TRANSPORT  (1ULL << __REQ    194 #define REQ_FAILFAST_TRANSPORT  (1ULL << __REQ_FAILFAST_TRANSPORT)
197 #define REQ_FAILFAST_DRIVER     (1ULL << __REQ    195 #define REQ_FAILFAST_DRIVER     (1ULL << __REQ_FAILFAST_DRIVER)
198 #define REQ_SYNC                (1ULL << __REQ    196 #define REQ_SYNC                (1ULL << __REQ_SYNC)
199 #define REQ_META                (1ULL << __REQ    197 #define REQ_META                (1ULL << __REQ_META)
200 #define REQ_PRIO                (1ULL << __REQ    198 #define REQ_PRIO                (1ULL << __REQ_PRIO)
201 #define REQ_DISCARD             (1ULL << __REQ !! 199 #define REQ_NOMERGE             (1ULL << __REQ_NOMERGE)
202 #define REQ_WRITE_SAME          (1ULL << __REQ !! 200 #define REQ_IDLE                (1ULL << __REQ_IDLE)
203 #define REQ_NOIDLE              (1ULL << __REQ << 
204 #define REQ_INTEGRITY           (1ULL << __REQ    201 #define REQ_INTEGRITY           (1ULL << __REQ_INTEGRITY)
                                                   >> 202 #define REQ_FUA                 (1ULL << __REQ_FUA)
                                                   >> 203 #define REQ_PREFLUSH            (1ULL << __REQ_PREFLUSH)
                                                   >> 204 #define REQ_RAHEAD              (1ULL << __REQ_RAHEAD)
                                                   >> 205 #define REQ_BACKGROUND          (1ULL << __REQ_BACKGROUND)
205                                                   206 
206 #define REQ_FAILFAST_MASK \                       207 #define REQ_FAILFAST_MASK \
207         (REQ_FAILFAST_DEV | REQ_FAILFAST_TRANS    208         (REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
208 #define REQ_COMMON_MASK \                      << 
209         (REQ_WRITE | REQ_FAILFAST_MASK | REQ_S << 
210          REQ_DISCARD | REQ_WRITE_SAME | REQ_NO << 
211          REQ_SECURE | REQ_INTEGRITY)           << 
212 #define REQ_CLONE_MASK          REQ_COMMON_MAS << 
213                                                << 
214 #define BIO_NO_ADVANCE_ITER_MASK        (REQ_D << 
215                                                   209 
216 /* This mask is used for both bio and request  << 
217 #define REQ_NOMERGE_FLAGS \                       210 #define REQ_NOMERGE_FLAGS \
218         (REQ_NOMERGE | REQ_STARTED | REQ_SOFTB !! 211         (REQ_NOMERGE | REQ_PREFLUSH | REQ_FUA)
219                                                   212 
220 #define REQ_RAHEAD              (1ULL << __REQ !! 213 #define bio_op(bio) \
221 #define REQ_THROTTLED           (1ULL << __REQ !! 214         ((bio)->bi_opf & REQ_OP_MASK)
                                                   >> 215 #define req_op(req) \
                                                   >> 216         ((req)->cmd_flags & REQ_OP_MASK)
                                                   >> 217 
                                                   >> 218 /* obsolete, don't use in new code */
                                                   >> 219 static inline void bio_set_op_attrs(struct bio *bio, unsigned op,
                                                   >> 220                 unsigned op_flags)
                                                   >> 221 {
                                                   >> 222         bio->bi_opf = op | op_flags;
                                                   >> 223 }
222                                                   224 
223 #define REQ_SORTED              (1ULL << __REQ !! 225 static inline bool op_is_write(unsigned int op)
224 #define REQ_SOFTBARRIER         (1ULL << __REQ !! 226 {
225 #define REQ_FUA                 (1ULL << __REQ !! 227         return (op & 1);
226 #define REQ_NOMERGE             (1ULL << __REQ !! 228 }
227 #define REQ_STARTED             (1ULL << __REQ !! 229 
228 #define REQ_DONTPREP            (1ULL << __REQ !! 230 /*
229 #define REQ_QUEUED              (1ULL << __REQ !! 231  * Check if the bio or request is one that needs special treatment in the
230 #define REQ_ELVPRIV             (1ULL << __REQ !! 232  * flush state machine.
231 #define REQ_FAILED              (1ULL << __REQ !! 233  */
232 #define REQ_QUIET               (1ULL << __REQ !! 234 static inline bool op_is_flush(unsigned int op)
233 #define REQ_PREEMPT             (1ULL << __REQ !! 235 {
234 #define REQ_ALLOCED             (1ULL << __REQ !! 236         return op & (REQ_FUA | REQ_PREFLUSH);
235 #define REQ_COPY_USER           (1ULL << __REQ !! 237 }
236 #define REQ_FLUSH               (1ULL << __REQ !! 238 
237 #define REQ_FLUSH_SEQ           (1ULL << __REQ !! 239 /*
238 #define REQ_IO_STAT             (1ULL << __REQ !! 240  * Reads are always treated as synchronous, as are requests with the FUA or
239 #define REQ_MIXED_MERGE         (1ULL << __REQ !! 241  * PREFLUSH flag.  Other operations may be marked as synchronous using the
240 #define REQ_SECURE              (1ULL << __REQ !! 242  * REQ_SYNC flag.
241 #define REQ_PM                  (1ULL << __REQ !! 243  */
242 #define REQ_HASHED              (1ULL << __REQ !! 244 static inline bool op_is_sync(unsigned int op)
243 #define REQ_MQ_INFLIGHT         (1ULL << __REQ !! 245 {
                                                   >> 246         return (op & REQ_OP_MASK) == REQ_OP_READ ||
                                                   >> 247                 (op & (REQ_SYNC | REQ_FUA | REQ_PREFLUSH));
                                                   >> 248 }
244                                                   249 
245 typedef unsigned int blk_qc_t;                    250 typedef unsigned int blk_qc_t;
246 #define BLK_QC_T_NONE   -1U                    !! 251 #define BLK_QC_T_NONE           -1U
247 #define BLK_QC_T_SHIFT  16                     !! 252 #define BLK_QC_T_SHIFT          16
                                                   >> 253 #define BLK_QC_T_INTERNAL       (1U << 31)
248                                                   254 
249 static inline bool blk_qc_t_valid(blk_qc_t coo    255 static inline bool blk_qc_t_valid(blk_qc_t cookie)
250 {                                                 256 {
251         return cookie != BLK_QC_T_NONE;           257         return cookie != BLK_QC_T_NONE;
252 }                                                 258 }
253                                                   259 
254 static inline blk_qc_t blk_tag_to_qc_t(unsigne !! 260 static inline blk_qc_t blk_tag_to_qc_t(unsigned int tag, unsigned int queue_num,
                                                   >> 261                                        bool internal)
255 {                                                 262 {
256         return tag | (queue_num << BLK_QC_T_SH !! 263         blk_qc_t ret = tag | (queue_num << BLK_QC_T_SHIFT);
                                                   >> 264 
                                                   >> 265         if (internal)
                                                   >> 266                 ret |= BLK_QC_T_INTERNAL;
                                                   >> 267 
                                                   >> 268         return ret;
257 }                                                 269 }
258                                                   270 
259 static inline unsigned int blk_qc_t_to_queue_n    271 static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie)
260 {                                                 272 {
261         return cookie >> BLK_QC_T_SHIFT;       !! 273         return (cookie & ~BLK_QC_T_INTERNAL) >> BLK_QC_T_SHIFT;
262 }                                                 274 }
263                                                   275 
264 static inline unsigned int blk_qc_t_to_tag(blk    276 static inline unsigned int blk_qc_t_to_tag(blk_qc_t cookie)
265 {                                                 277 {
266         return cookie & ((1u << BLK_QC_T_SHIFT    278         return cookie & ((1u << BLK_QC_T_SHIFT) - 1);
267 }                                                 279 }
                                                   >> 280 
                                                   >> 281 static inline bool blk_qc_t_is_internal(blk_qc_t cookie)
                                                   >> 282 {
                                                   >> 283         return (cookie & BLK_QC_T_INTERNAL) != 0;
                                                   >> 284 }
                                                   >> 285 
                                                   >> 286 struct blk_issue_stat {
                                                   >> 287         u64 time;
                                                   >> 288 };
                                                   >> 289 
                                                   >> 290 #define BLK_RQ_STAT_BATCH       64
                                                   >> 291 
                                                   >> 292 struct blk_rq_stat {
                                                   >> 293         s64 mean;
                                                   >> 294         u64 min;
                                                   >> 295         u64 max;
                                                   >> 296         s32 nr_samples;
                                                   >> 297         s32 nr_batch;
                                                   >> 298         u64 batch;
                                                   >> 299         s64 time;
                                                   >> 300 };
268                                                   301 
269 #endif /* __LINUX_BLK_TYPES_H */                  302 #endif /* __LINUX_BLK_TYPES_H */
270                                                   303 

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