root/drivers/scsi/scsi.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. end_scsi_request

   1 /*
   2  *      scsi.h Copyright (C) 1992 Drew Eckhardt 
   3  *      generic SCSI package header file by
   4  *              Drew Eckhardt 
   5  *
   6  *      <drew@colorado.edu>
   7  *
   8  *       Modified by Eric Youngdale eric@tantalus.nrl.navy.mil to
   9  *       add scatter-gather, multiple outstanding request, and other
  10  *       enhancements.
  11  */
  12 
  13 #ifndef _SCSI_H
  14 #define _SCSI_H
  15 
  16 /*
  17         $Header: /usr/src/linux/kernel/blk_drv/scsi/RCS/scsi.h,v 1.3 1993/09/24 12:20:33 drew Exp $
  18 
  19         For documentation on the OPCODES, MESSAGES, and SENSE values,
  20         please consult the SCSI standard.
  21 
  22 */
  23 
  24 /*
  25         SCSI opcodes
  26 */
  27 
  28 #define TEST_UNIT_READY         0x00
  29 #define REZERO_UNIT             0x01
  30 #define REQUEST_SENSE           0x03
  31 #define FORMAT_UNIT             0x04
  32 #define READ_BLOCK_LIMITS       0x05
  33 #define REASSIGN_BLOCKS         0x07
  34 #define READ_6                  0x08
  35 #define WRITE_6                 0x0a
  36 #define SEEK_6                  0x0b
  37 #define READ_REVERSE            0x0f
  38 #define WRITE_FILEMARKS         0x10
  39 #define SPACE                   0x11
  40 #define INQUIRY                 0x12
  41 #define RECOVER_BUFFERED_DATA   0x14
  42 #define MODE_SELECT             0x15
  43 #define RESERVE                 0x16
  44 #define RELEASE                 0x17
  45 #define COPY                    0x18
  46 #define ERASE                   0x19
  47 #define MODE_SENSE              0x1a
  48 #define START_STOP              0x1b
  49 #define RECEIVE_DIAGNOSTIC      0x1c
  50 #define SEND_DIAGNOSTIC         0x1d
  51 #define ALLOW_MEDIUM_REMOVAL    0x1e
  52 
  53 #define READ_CAPACITY           0x25
  54 #define READ_10                 0x28
  55 #define WRITE_10                0x2a
  56 #define SEEK_10                 0x2b
  57 #define WRITE_VERIFY            0x2e
  58 #define VERIFY                  0x2f
  59 #define SEARCH_HIGH             0x30
  60 #define SEARCH_EQUAL            0x31
  61 #define SEARCH_LOW              0x32
  62 #define SET_LIMITS              0x33
  63 #define PRE_FETCH               0x34
  64 #define READ_POSITION           0x34
  65 #define SYNCHRONIZE_CACHE       0x35
  66 #define LOCK_UNLOCK_CACHE       0x36
  67 #define READ_DEFECT_DATA        0x37
  68 #define COMPARE                 0x39
  69 #define COPY_VERIFY             0x3a
  70 #define WRITE_BUFFER            0x3b
  71 #define READ_BUFFER             0x3c
  72 #define READ_LONG               0x3e
  73 #define CHANGE_DEFINITION       0x40
  74 #define LOG_SELECT              0x4c
  75 #define LOG_SENSE               0x4d
  76 #define MODE_SELECT_10          0x55
  77 #define MODE_SENSE_10           0x5a
  78 
  79 extern void scsi_make_blocked_list(void);
  80 extern volatile int in_scan_scsis;
  81 extern const unsigned char scsi_command_size[8];
  82 #define COMMAND_SIZE(opcode) scsi_command_size[((opcode) >> 5) & 7]
  83 
  84 /*
  85         MESSAGE CODES
  86 */
  87 
  88 #define COMMAND_COMPLETE        0x00
  89 #define EXTENDED_MESSAGE        0x01
  90 #define         EXTENDED_MODIFY_DATA_POINTER    0x00
  91 #define         EXTENDED_SDTR                   0x01
  92 #define         EXTENDED_EXTENDED_IDENTIFY      0x02    /* SCSI-I only */
  93 #define         EXTENDED_WDTR                   0x03
  94 #define SAVE_POINTERS           0x02
  95 #define RESTORE_POINTERS        0x03
  96 #define DISCONNECT              0x04
  97 #define INITIATOR_ERROR         0x05
  98 #define ABORT                   0x06
  99 #define MESSAGE_REJECT          0x07
 100 #define NOP                     0x08
 101 #define MSG_PARITY_ERROR        0x09
 102 #define LINKED_CMD_COMPLETE     0x0a
 103 #define LINKED_FLG_CMD_COMPLETE 0x0b
 104 #define BUS_DEVICE_RESET        0x0c
 105 
 106 #define INITIATE_RECOVERY       0x0f                    /* SCSI-II only */
 107 #define RELEASE_RECOVERY        0x10                    /* SCSI-II only */
 108 
 109 #define SIMPLE_QUEUE_TAG        0x20
 110 #define HEAD_OF_QUEUE_TAG       0x21
 111 #define ORDERED_QUEUE_TAG       0x22
 112 
 113 #define IDENTIFY_BASE           0x80
 114 #define IDENTIFY(can_disconnect, lun)   (IDENTIFY_BASE |\
 115                                          ((can_disconnect) ?  0x40 : 0) |\
 116                                          ((lun) & 0x07)) 
 117 
 118                                  
 119 /*
 120         Status codes
 121 */
 122 
 123 #define GOOD                    0x00
 124 #define CHECK_CONDITION         0x01
 125 #define CONDITION_GOOD          0x02
 126 #define BUSY                    0x04
 127 #define INTERMEDIATE_GOOD       0x08
 128 #define INTERMEDIATE_C_GOOD     0x0a
 129 #define RESERVATION_CONFLICT    0x0c
 130 #define QUEUE_FULL              0x1a
 131 
 132 #define STATUS_MASK             0x1e
 133         
 134 /*
 135         the return of the status word will be in the following format :
 136         The low byte is the status returned by the SCSI command, 
 137         with vendor specific bits masked.
 138 
 139         The next byte is the message which followed the SCSI status.
 140         This allows a stos to be used, since the Intel is a little
 141         endian machine.
 142 
 143         The final byte is a host return code, which is one of the following.
 144 
 145         IE 
 146         lsb             msb
 147         status  msg     host code       
 148 
 149         Our errors returned by OUR driver, NOT SCSI message.  Or'd with
 150         SCSI message passed back to driver <IF any>.
 151 */
 152 
 153 /*      NO error                                                        */
 154 #define DID_OK                  0x00
 155 /*      Couldn't connect before timeout period                          */
 156 #define DID_NO_CONNECT          0x01
 157 /*      BUS stayed busy through time out period                         */
 158 #define DID_BUS_BUSY            0x02
 159 /*      TIMED OUT for other reason                                      */
 160 #define DID_TIME_OUT            0x03
 161 /*      BAD target.                                                     */
 162 #define DID_BAD_TARGET          0x04
 163 /*      Told to abort for some other reason                             */
 164 #define DID_ABORT               0x05
 165 /*
 166         Parity error
 167 */
 168 #define DID_PARITY              0x06
 169 /*
 170         Internal error
 171 */
 172 #define DID_ERROR               0x07    
 173 /*
 174         Reset by somebody.
 175 */
 176 #define DID_RESET               0x08
 177 /*
 178         Got an interrupt we weren't expecting.
 179 */
 180 #define DID_BAD_INTR            0x09
 181 
 182 /*
 183         Driver status
 184 */ 
 185 #define DRIVER_OK               0x00
 186 
 187 /*
 188         These indicate the error that occurred, and what is available.
 189 */
 190 
 191 #define DRIVER_BUSY             0x01
 192 #define DRIVER_SOFT             0x02
 193 #define DRIVER_MEDIA            0x03
 194 #define DRIVER_ERROR            0x04    
 195 
 196 #define DRIVER_INVALID          0x05
 197 #define DRIVER_TIMEOUT          0x06
 198 #define DRIVER_HARD             0x07
 199 
 200 #define SUGGEST_RETRY           0x10
 201 #define SUGGEST_ABORT           0x20 
 202 #define SUGGEST_REMAP           0x30
 203 #define SUGGEST_DIE             0x40
 204 #define SUGGEST_SENSE           0x80
 205 #define SUGGEST_IS_OK           0xff
 206 
 207 #define DRIVER_SENSE            0x08
 208 
 209 #define DRIVER_MASK 0x0f
 210 #define SUGGEST_MASK 0xf0
 211 
 212 /*
 213 
 214         SENSE KEYS
 215 */
 216 
 217 #define NO_SENSE                0x00
 218 #define RECOVERED_ERROR         0x01
 219 #define NOT_READY               0x02
 220 #define MEDIUM_ERROR            0x03
 221 #define HARDWARE_ERROR          0x04
 222 #define ILLEGAL_REQUEST         0x05
 223 #define UNIT_ATTENTION          0x06
 224 #define DATA_PROTECT            0x07
 225 #define BLANK_CHECK             0x08
 226 #define COPY_ABORTED            0x0a
 227 #define ABORTED_COMMAND         0x0b
 228 #define VOLUME_OVERFLOW         0x0d
 229 #define MISCOMPARE              0x0e
 230 
 231 
 232 /*
 233         DEVICE TYPES
 234 
 235 */
 236 
 237 #define TYPE_DISK       0x00
 238 #define TYPE_TAPE       0x01
 239 #define TYPE_PROCESSOR  0x03    /* HP scanners use this */
 240 #define TYPE_WORM       0x04    /* Treated as ROM by our system */
 241 #define TYPE_ROM        0x05
 242 #define TYPE_SCANNER    0x06
 243 #define TYPE_MOD        0x07  /* Magneto-optical disk - treated as TYPE_DISK */
 244 #define TYPE_NO_LUN     0x7f
 245 
 246 
 247 #define MAX_COMMAND_SIZE 12
 248 /*
 249         SCSI command sets
 250 
 251 */
 252 
 253 #define SCSI_UNKNOWN    0
 254 #define SCSI_1          1
 255 #define SCSI_1_CCS      2
 256 #define SCSI_2          3
 257 
 258 /*
 259         Every SCSI command starts with a one byte OP-code.
 260         The next byte's high three bits are the LUN of the
 261         device.  Any multi-byte quantities are stored high byte
 262         first, and may have a 5 bit MSB in the same byte
 263         as the LUN.
 264 */
 265 
 266 /*
 267         Manufacturers list
 268 */
 269 
 270 #define SCSI_MAN_UNKNOWN     0
 271 #define SCSI_MAN_NEC         1
 272 #define SCSI_MAN_TOSHIBA     2
 273 
 274 /*
 275         The scsi_device struct contains what we know about each given scsi
 276         device.
 277 */
 278 
 279 typedef struct scsi_device {
 280         struct scsi_device * next; /* Used for linked list */
 281         unsigned char id, lun;
 282         unsigned int manufacturer; /* Manufacturer of device, for using vendor-specific cmd's */
 283         int attached;          /* # of high level drivers attached to this */
 284         int access_count;       /* Count of open channels/mounts */
 285         struct wait_queue * device_wait;  /* Used to wait if device is busy */
 286         struct Scsi_Host * host;
 287         void (*scsi_request_fn)(void); /* Used to jumpstart things after an ioctl */
 288         void *hostdata;                   /* available to low-level driver */
 289         char type;
 290         char scsi_level;
 291         unsigned writeable:1;
 292         unsigned removable:1; 
 293         unsigned random:1;
 294         unsigned changed:1;     /* Data invalid due to media change */
 295         unsigned busy:1;        /* Used to prevent races */
 296         unsigned lockable:1;    /* Able to prevent media removal */
 297         unsigned borken:1;      /* Tell the Seagate driver to be 
 298                                    painfully slow on this device */ 
 299         unsigned tagged_supported:1; /* Supports SCSI-II tagged queuing */
 300         unsigned tagged_queue:1;   /*SCSI-II tagged queuing enabled */
 301         unsigned disconnect:1;     /* can disconnect */
 302         unsigned soft_reset:1;          /* Uses soft reset option */
 303         unsigned char current_tag; /* current tag */
 304         unsigned sync:1;        /* Negotiate for sync transfers */
 305         unsigned char sync_min_period;  /* Not less than this period */
 306         unsigned char sync_max_offset;  /* Not greater than this offset */
 307 } Scsi_Device;
 308 /*
 309         Use these to separate status msg and our bytes
 310 */
 311 
 312 #define status_byte(result) (((result) >> 1) & 0xf)
 313 #define msg_byte(result) (((result) >> 8) & 0xff)
 314 #define host_byte(result) (((result) >> 16) & 0xff)
 315 #define driver_byte(result) (((result) >> 24) & 0xff)
 316 #define suggestion(result) (driver_byte(result) & SUGGEST_MASK)
 317 
 318 #define sense_class(sense) (((sense) >> 4) & 0x7)
 319 #define sense_error(sense) ((sense) & 0xf)
 320 #define sense_valid(sense) ((sense) & 0x80);
 321 
 322 /*
 323         These are the SCSI devices available on the system.
 324 */
 325 
 326 extern Scsi_Device * scsi_devices;
 327 /*
 328         Initializes all SCSI devices.  This scans all scsi busses.
 329 */
 330 
 331 extern unsigned long scsi_dev_init (unsigned long, unsigned long);
 332 
 333 struct scatterlist {
 334      char *  address; /* Location data is to be transferred to */
 335      char * alt_address; /* Location of actual if address is a 
 336                             dma indirect buffer.  NULL otherwise */
 337      unsigned int length;
 338      };
 339 
 340 #define ISA_DMA_THRESHOLD (0x00ffffff)
 341 #define CONTIGUOUS_BUFFERS(X,Y) ((X->b_data+X->b_size) == Y->b_data)
 342 
 343 
 344 /*
 345  * These are the return codes for the abort and reset functions.  The mid-level
 346  * code uses these to decide what to do next.  Each of the low level abort
 347  * and reset functions must correctly indicate what it has done.
 348  */
 349 
 350 /* We did not do anything.  Wait
 351    some more for this command to complete, and if this does not work, try
 352    something more serious. */ 
 353 #define SCSI_ABORT_SNOOZE 0
 354 
 355 /* This means that we were able to abort the command.  We have already
 356    called the mid-level done function, and do not expect an interrupt that will
 357    lead to another call to the mid-level done function for this command */
 358 #define SCSI_ABORT_SUCCESS 1
 359 
 360 /* We called for an abort of this command, and we should get an interrupt 
 361    when this succeeds.  Thus we should not restore the timer for this
 362    command in the mid-level abort function. */
 363 #define SCSI_ABORT_PENDING 2
 364 
 365 /* Unable to abort - command is currently on the bus.  Grin and bear it. */
 366 #define SCSI_ABORT_BUSY 3
 367 
 368 /* The command is not active in the low level code. Command probably
 369    finished. */
 370 #define SCSI_ABORT_NOT_RUNNING 4
 371 
 372 /* Something went wrong.  The low level driver will indicate the correct
 373  error condition when it calls scsi_done, so the mid-level abort function
 374  can simply wait until this comes through */
 375 #define SCSI_ABORT_ERROR 5
 376 
 377 /* We do not know how to reset the bus, or we do not want to.  Bummer.
 378    Anyway, just wait a little more for the command in question, and hope that
 379    it eventually finishes.  If it never finishes, the SCSI device could
 380    hang, so use this with caution. */
 381 #define SCSI_RESET_SNOOZE 0
 382 
 383 /* We do not know how to reset the bus, or we do not want to.  Bummer.
 384    We have given up on this ever completing.  The mid-level code will
 385    request sense information to decide how to proceed from here. */
 386 #define SCSI_RESET_PUNT 1
 387 
 388 /* This means that we were able to reset the bus.  We have restarted all of
 389    the commands that should be restarted, and we should be able to continue
 390    on normally from here.  We do not expect any interrupts that will return
 391    DID_RESET to any of the other commands in the host_queue, and the mid-level
 392    code does not need to do anything special to keep the commands alive. */
 393 #define SCSI_RESET_SUCCESS 2
 394 
 395 /* We called for a reset of this bus, and we should get an interrupt 
 396    when this succeeds.  Each command should get its own status
 397    passed up to scsi_done, but this has not happened yet. */
 398 #define SCSI_RESET_PENDING 3
 399 
 400 /* We did a reset, but do not expect an interrupt to signal DID_RESET.
 401    This tells the upper level code to request the sense info, and this
 402    should keep the command alive. */
 403 #define SCSI_RESET_WAKEUP 4
 404 
 405 /* Something went wrong, and we do not know how to fix it. */
 406 #define SCSI_RESET_ERROR 5
 407 
 408 void *   scsi_malloc(unsigned int);
 409 int      scsi_free(void *, unsigned int);
 410 extern unsigned int dma_free_sectors;   /* How much room do we have left */
 411 extern unsigned int need_isa_buffer;   /* True if some devices need indirection
 412                                  buffers */
 413 
 414 /*
 415         The Scsi_Cmnd structure is used by scsi.c internally, and for communication with
 416         low level drivers that support multiple outstanding commands.
 417 */
 418 typedef struct scsi_pointer {
 419   char * ptr;                     /* data pointer */
 420   int this_residual;              /* left in this buffer */
 421   struct scatterlist *buffer;     /* which buffer */
 422   int buffers_residual;           /* how many buffers left */
 423 
 424   volatile int Status;
 425   volatile int Message;
 426   volatile int have_data_in;
 427   volatile int sent_command;
 428   volatile int phase;
 429 } Scsi_Pointer;
 430 
 431 typedef struct scsi_cmnd {
 432         struct Scsi_Host * host;
 433         Scsi_Device * device;
 434         unsigned char target, lun;
 435         unsigned char cmd_len;
 436         unsigned char old_cmd_len;
 437         struct scsi_cmnd *next, *prev;  
 438 
 439 /* These elements define the operation we are about to perform */
 440         unsigned char cmnd[12];
 441         unsigned request_bufflen; /* Actual request size */
 442 
 443         void * request_buffer;  /* Actual requested buffer */
 444 
 445 /* These elements define the operation we ultimately want to perform */
 446         unsigned char data_cmnd[12];
 447         unsigned short old_use_sg;  /* We save  use_sg here when requesting
 448                                        sense info */
 449         unsigned short use_sg;  /* Number of pieces of scatter-gather */
 450         unsigned short sglist_len;  /* size of malloc'd scatter-gather list */
 451         unsigned short abort_reason;  /* If the mid-level code requests an
 452                                          abort, this is the reason. */
 453         unsigned bufflen;     /* Size of data buffer */
 454         void *buffer;   /* Data buffer */
 455 
 456         unsigned underflow;     /* Return error if less than this amount is 
 457                                    transfered */
 458 
 459         unsigned transfersize;  /* How much we are guaranteed to transfer with
 460                                    each SCSI transfer (ie, between disconnect /
 461                                    reconnects.   Probably == sector size */
 462         
 463         
 464         
 465         struct request request;  /* A copy of the command we are working on*/
 466 
 467         unsigned char sense_buffer[16];  /* Sense for this command, if needed*/
 468 
 469 
 470         int retries;
 471         int allowed;
 472         int timeout_per_command, timeout_total, timeout;
 473 /*
 474  *      We handle the timeout differently if it happens when a reset, 
 475  *      abort, etc are in process. 
 476  */
 477 
 478         unsigned volatile char internal_timeout;
 479 
 480         unsigned flags;
 481                 
 482 /* These variables are for the cdrom only.  Once we have variable size buffers
 483    in the buffer cache, they will go away. */
 484         int this_count; 
 485 /* End of special cdrom variables */
 486         
 487         /* Low-level done function - can be used by low-level driver to point
 488          to completion function.  Not used by mid/upper level code. */
 489         void (*scsi_done)(struct scsi_cmnd *);  
 490         void (*done)(struct scsi_cmnd *);  /* Mid-level done function */
 491 
 492 /* The following fields can be written to by the host specific code. 
 493    Everything else should be left alone. */
 494 
 495         Scsi_Pointer SCp;   /* Scratchpad used by some host adapters */
 496 
 497         unsigned char * host_scribble; /* The host adapter is allowed to
 498                                           call scsi_malloc and get some memory
 499                                           and hang it here.  The host adapter
 500                                           is also expected to call scsi_free
 501                                           to release this memory.  (The memory
 502                                           obtained by scsi_malloc is guaranteed
 503                                           to be at an address < 16Mb). */
 504 
 505         int result;                   /* Status code from lower level driver */
 506 
 507         unsigned char tag;              /* SCSI-II queued command tag */
 508         unsigned long pid;              /* Process ID, starts at 0 */
 509         } Scsi_Cmnd;             
 510 
 511 /*
 512         scsi_abort aborts the current command that is executing on host host.
 513         The error code, if non zero is returned in the host byte, otherwise 
 514         DID_ABORT is returned in the hostbyte.
 515 */
 516 
 517 extern int scsi_abort (Scsi_Cmnd *, int code, int pid);
 518 
 519 extern void scsi_do_cmd (Scsi_Cmnd *, const void *cmnd ,
 520                   void *buffer, unsigned bufflen, void (*done)(struct scsi_cmnd *),
 521                   int timeout, int retries);
 522 
 523 
 524 extern Scsi_Cmnd * allocate_device(struct request **, Scsi_Device *, int);
 525 
 526 extern Scsi_Cmnd * request_queueable(struct request *, Scsi_Device *);
 527 extern int scsi_reset (Scsi_Cmnd *);
 528 
 529 extern int max_scsi_hosts;
 530 
 531 #if defined(MAJOR_NR) && (MAJOR_NR != SCSI_TAPE_MAJOR)
 532 #include "hosts.h"
 533 static Scsi_Cmnd * end_scsi_request(Scsi_Cmnd * SCpnt, int uptodate, int sectors)
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 534 {
 535         struct request * req;
 536         struct buffer_head * bh;
 537 
 538         req = &SCpnt->request;
 539         req->errors = 0;
 540         if (!uptodate) {
 541                 printk(DEVICE_NAME " I/O error: dev %04x, sector %lu\n",
 542                        req->dev,req->sector);
 543         }
 544 
 545         do {
 546           if ((bh = req->bh) != NULL) {
 547             req->bh = bh->b_reqnext;
 548             req->nr_sectors -= bh->b_size >> 9;
 549             req->sector += bh->b_size >> 9;
 550             bh->b_reqnext = NULL;
 551             bh->b_uptodate = uptodate;
 552             unlock_buffer(bh);
 553             sectors -= bh->b_size >> 9;
 554             if ((bh = req->bh) != NULL) {
 555               req->current_nr_sectors = bh->b_size >> 9;
 556               if (req->nr_sectors < req->current_nr_sectors) {
 557                 req->nr_sectors = req->current_nr_sectors;
 558                 printk("end_scsi_request: buffer-list destroyed\n");
 559               }
 560             }
 561           }
 562         } while(sectors && bh);
 563         if (req->bh){
 564           req->buffer = bh->b_data;
 565           return SCpnt;
 566         };
 567         DEVICE_OFF(req->dev);
 568         if (req->sem != NULL) {
 569                 up(req->sem);
 570         }
 571 
 572         if (SCpnt->host->block) {
 573            struct Scsi_Host * next;
 574 
 575            for (next = SCpnt->host->block; next != SCpnt->host;
 576                                                    next = next->block)
 577               wake_up(&next->host_wait);
 578            }
 579 
 580         req->dev = -1;
 581         wake_up(&wait_for_request);
 582         wake_up(&SCpnt->device->device_wait);
 583         return NULL;
 584 }
 585 
 586 
 587 /* This is just like INIT_REQUEST, but we need to be aware of the fact
 588    that an interrupt may start another request, so we run this with interrupts
 589    turned off */
 590 
 591 #define INIT_SCSI_REQUEST \
 592         if (!CURRENT) {\
 593                 CLEAR_INTR; \
 594                 restore_flags(flags);   \
 595                 return; \
 596         } \
 597         if (MAJOR(CURRENT->dev) != MAJOR_NR) \
 598                 panic(DEVICE_NAME ": request list destroyed"); \
 599         if (CURRENT->bh) { \
 600                 if (!CURRENT->bh->b_lock) \
 601                         panic(DEVICE_NAME ": block not locked"); \
 602         }
 603 #endif
 604 
 605 #define SCSI_SLEEP(QUEUE, CONDITION) {                          \
 606         if (CONDITION) {                                        \
 607                 struct wait_queue wait = { current, NULL};      \
 608                 add_wait_queue(QUEUE, &wait);                   \
 609         for(;;) {                                               \
 610                 current->state = TASK_UNINTERRUPTIBLE;          \
 611                 if (CONDITION) {                                \
 612                    if (intr_count)                              \
 613                       panic("scsi: trying to call schedule() in interrupt" \
 614                             ", file %s, line %d.\n", __FILE__, __LINE__);  \
 615                    schedule();                                  \
 616                    }                                            \
 617                 else                                            \
 618                    break;                                       \
 619                 }                                               \
 620                 remove_wait_queue(QUEUE, &wait);                \
 621                 current->state = TASK_RUNNING;                  \
 622         }; }
 623 
 624 #endif
 625 
 626 /*
 627  * Overrides for Emacs so that we follow Linus's tabbing style.
 628  * Emacs will notice this stuff at the end of the file and automatically
 629  * adjust the settings for this buffer only.  This must remain at the end
 630  * of the file.
 631  * ---------------------------------------------------------------------------
 632  * Local variables:
 633  * c-indent-level: 8
 634  * c-brace-imaginary-offset: 0
 635  * c-brace-offset: -8
 636  * c-argdecl-indent: 8
 637  * c-label-offset: -8
 638  * c-continued-statement-offset: 8
 639  * c-continued-brace-offset: 0
 640  * End:
 641  */

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