diff options
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 35 |
1 files changed, 6 insertions, 29 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index ebd22dbed861..6690e8bae7bb 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h | |||
| @@ -158,7 +158,6 @@ enum rq_flag_bits { | |||
| 158 | struct request { | 158 | struct request { |
| 159 | struct list_head queuelist; | 159 | struct list_head queuelist; |
| 160 | struct call_single_data csd; | 160 | struct call_single_data csd; |
| 161 | int cpu; | ||
| 162 | 161 | ||
| 163 | struct request_queue *q; | 162 | struct request_queue *q; |
| 164 | 163 | ||
| @@ -166,9 +165,11 @@ struct request { | |||
| 166 | enum rq_cmd_type_bits cmd_type; | 165 | enum rq_cmd_type_bits cmd_type; |
| 167 | unsigned long atomic_flags; | 166 | unsigned long atomic_flags; |
| 168 | 167 | ||
| 168 | int cpu; | ||
| 169 | |||
| 169 | /* the following two fields are internal, NEVER access directly */ | 170 | /* the following two fields are internal, NEVER access directly */ |
| 170 | sector_t __sector; /* sector cursor */ | ||
| 171 | unsigned int __data_len; /* total data len */ | 171 | unsigned int __data_len; /* total data len */ |
| 172 | sector_t __sector; /* sector cursor */ | ||
| 172 | 173 | ||
| 173 | struct bio *bio; | 174 | struct bio *bio; |
| 174 | struct bio *biotail; | 175 | struct bio *biotail; |
| @@ -201,20 +202,20 @@ struct request { | |||
| 201 | 202 | ||
| 202 | unsigned short ioprio; | 203 | unsigned short ioprio; |
| 203 | 204 | ||
| 205 | int ref_count; | ||
| 206 | |||
| 204 | void *special; /* opaque pointer available for LLD use */ | 207 | void *special; /* opaque pointer available for LLD use */ |
| 205 | char *buffer; /* kaddr of the current segment if available */ | 208 | char *buffer; /* kaddr of the current segment if available */ |
| 206 | 209 | ||
| 207 | int tag; | 210 | int tag; |
| 208 | int errors; | 211 | int errors; |
| 209 | 212 | ||
| 210 | int ref_count; | ||
| 211 | |||
| 212 | /* | 213 | /* |
| 213 | * when request is used as a packet command carrier | 214 | * when request is used as a packet command carrier |
| 214 | */ | 215 | */ |
| 215 | unsigned short cmd_len; | ||
| 216 | unsigned char __cmd[BLK_MAX_CDB]; | 216 | unsigned char __cmd[BLK_MAX_CDB]; |
| 217 | unsigned char *cmd; | 217 | unsigned char *cmd; |
| 218 | unsigned short cmd_len; | ||
| 218 | 219 | ||
| 219 | unsigned int extra_len; /* length of alignment and padding */ | 220 | unsigned int extra_len; /* length of alignment and padding */ |
| 220 | unsigned int sense_len; | 221 | unsigned int sense_len; |
| @@ -921,26 +922,7 @@ extern void blk_cleanup_queue(struct request_queue *); | |||
| 921 | extern void blk_queue_make_request(struct request_queue *, make_request_fn *); | 922 | extern void blk_queue_make_request(struct request_queue *, make_request_fn *); |
| 922 | extern void blk_queue_bounce_limit(struct request_queue *, u64); | 923 | extern void blk_queue_bounce_limit(struct request_queue *, u64); |
| 923 | extern void blk_queue_max_hw_sectors(struct request_queue *, unsigned int); | 924 | extern void blk_queue_max_hw_sectors(struct request_queue *, unsigned int); |
| 924 | |||
| 925 | /* Temporary compatibility wrapper */ | ||
| 926 | static inline void blk_queue_max_sectors(struct request_queue *q, unsigned int max) | ||
| 927 | { | ||
| 928 | blk_queue_max_hw_sectors(q, max); | ||
| 929 | } | ||
| 930 | |||
| 931 | extern void blk_queue_max_segments(struct request_queue *, unsigned short); | 925 | extern void blk_queue_max_segments(struct request_queue *, unsigned short); |
| 932 | |||
| 933 | static inline void blk_queue_max_phys_segments(struct request_queue *q, unsigned short max) | ||
| 934 | { | ||
| 935 | blk_queue_max_segments(q, max); | ||
| 936 | } | ||
| 937 | |||
| 938 | static inline void blk_queue_max_hw_segments(struct request_queue *q, unsigned short max) | ||
| 939 | { | ||
| 940 | blk_queue_max_segments(q, max); | ||
| 941 | } | ||
| 942 | |||
| 943 | |||
| 944 | extern void blk_queue_max_segment_size(struct request_queue *, unsigned int); | 926 | extern void blk_queue_max_segment_size(struct request_queue *, unsigned int); |
| 945 | extern void blk_queue_max_discard_sectors(struct request_queue *q, | 927 | extern void blk_queue_max_discard_sectors(struct request_queue *q, |
| 946 | unsigned int max_discard_sectors); | 928 | unsigned int max_discard_sectors); |
| @@ -1030,11 +1012,6 @@ static inline int sb_issue_discard(struct super_block *sb, | |||
| 1030 | 1012 | ||
| 1031 | extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm); | 1013 | extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm); |
| 1032 | 1014 | ||
| 1033 | #define MAX_PHYS_SEGMENTS 128 | ||
| 1034 | #define MAX_HW_SEGMENTS 128 | ||
| 1035 | #define SAFE_MAX_SECTORS 255 | ||
| 1036 | #define MAX_SEGMENT_SIZE 65536 | ||
| 1037 | |||
| 1038 | enum blk_default_limits { | 1015 | enum blk_default_limits { |
| 1039 | BLK_MAX_SEGMENTS = 128, | 1016 | BLK_MAX_SEGMENTS = 128, |
| 1040 | BLK_SAFE_MAX_SECTORS = 255, | 1017 | BLK_SAFE_MAX_SECTORS = 255, |
