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author | David S. Miller <davem@davemloft.net> | 2009-06-15 12:02:23 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2009-06-15 12:02:23 +0200 |
commit | 9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch) | |
tree | 8d104ec2a459346b99413b0b77421ca7b9936c1a /drivers/block/ataflop.c | |
parent | pkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US (diff) | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kb... (diff) | |
download | linux-9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb.tar.xz linux-9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb.zip |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/scsi/fcoe/fcoe.c
net/core/drop_monitor.c
net/core/net-traces.c
Diffstat (limited to 'drivers/block/ataflop.c')
-rw-r--r-- | drivers/block/ataflop.c | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index 4234c11c1e4c..f5e7180d7f47 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -79,9 +79,7 @@ #undef DEBUG static struct request_queue *floppy_queue; - -#define QUEUE (floppy_queue) -#define CURRENT elv_next_request(floppy_queue) +static struct request *fd_request; /* Disk types: DD, HD, ED */ static struct atari_disk_type { @@ -376,6 +374,12 @@ static DEFINE_TIMER(readtrack_timer, fd_readtrack_check, 0, 0); static DEFINE_TIMER(timeout_timer, fd_times_out, 0, 0); static DEFINE_TIMER(fd_timer, check_change, 0, 0); +static void fd_end_request_cur(int err) +{ + if (!__blk_end_request_cur(fd_request, err)) + fd_request = NULL; +} + static inline void start_motor_off_timer(void) { mod_timer(&motor_off_timer, jiffies + FD_MOTOR_OFF_DELAY); @@ -606,15 +610,15 @@ static void fd_error( void ) return; } - if (!CURRENT) + if (!fd_request) return; - CURRENT->errors++; - if (CURRENT->errors >= MAX_ERRORS) { + fd_request->errors++; + if (fd_request->errors >= MAX_ERRORS) { printk(KERN_ERR "fd%d: too many errors.\n", SelectedDrive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); } - else if (CURRENT->errors == RECALIBRATE_ERRORS) { + else if (fd_request->errors == RECALIBRATE_ERRORS) { printk(KERN_WARNING "fd%d: recalibrating\n", SelectedDrive ); if (SelectedDrive != -1) SUD.track = -1; @@ -725,16 +729,14 @@ static void do_fd_action( int drive ) if (IS_BUFFERED( drive, ReqSide, ReqTrack )) { if (ReqCmd == READ) { copy_buffer( SECTOR_BUFFER(ReqSector), ReqData ); - if (++ReqCnt < CURRENT->current_nr_sectors) { + if (++ReqCnt < blk_rq_cur_sectors(fd_request)) { /* read next sector */ setup_req_params( drive ); goto repeat; } else { /* all sectors finished */ - CURRENT->nr_sectors -= CURRENT->current_nr_sectors; - CURRENT->sector += CURRENT->current_nr_sectors; - end_request(CURRENT, 1); + fd_end_request_cur(0); redo_fd_request(); return; } @@ -1132,16 +1134,14 @@ static void fd_rwsec_done1(int status) } } - if (++ReqCnt < CURRENT->current_nr_sectors) { + if (++ReqCnt < blk_rq_cur_sectors(fd_request)) { /* read next sector */ setup_req_params( SelectedDrive ); do_fd_action( SelectedDrive ); } else { /* all sectors finished */ - CURRENT->nr_sectors -= CURRENT->current_nr_sectors; - CURRENT->sector += CURRENT->current_nr_sectors; - end_request(CURRENT, 1); + fd_end_request_cur(0); redo_fd_request(); } return; @@ -1382,7 +1382,7 @@ static void setup_req_params( int drive ) ReqData = ReqBuffer + 512 * ReqCnt; if (UseTrackbuffer) - read_track = (ReqCmd == READ && CURRENT->errors == 0); + read_track = (ReqCmd == READ && fd_request->errors == 0); else read_track = 0; @@ -1396,25 +1396,27 @@ static void redo_fd_request(void) int drive, type; struct atari_floppy_struct *floppy; - DPRINT(("redo_fd_request: CURRENT=%p dev=%s CURRENT->sector=%ld\n", - CURRENT, CURRENT ? CURRENT->rq_disk->disk_name : "", - CURRENT ? CURRENT->sector : 0 )); + DPRINT(("redo_fd_request: fd_request=%p dev=%s fd_request->sector=%ld\n", + fd_request, fd_request ? fd_request->rq_disk->disk_name : "", + fd_request ? blk_rq_pos(fd_request) : 0 )); IsFormatting = 0; repeat: + if (!fd_request) { + fd_request = blk_fetch_request(floppy_queue); + if (!fd_request) + goto the_end; + } - if (!CURRENT) - goto the_end; - - floppy = CURRENT->rq_disk->private_data; + floppy = fd_request->rq_disk->private_data; drive = floppy - unit; type = floppy->type; if (!UD.connected) { /* drive not connected */ printk(KERN_ERR "Unknown Device: fd%d\n", drive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); goto repeat; } @@ -1430,12 +1432,12 @@ repeat: /* user supplied disk type */ if (--type >= NUM_DISK_MINORS) { printk(KERN_WARNING "fd%d: invalid disk format", drive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); goto repeat; } if (minor2disktype[type].drive_types > DriveType) { printk(KERN_WARNING "fd%d: unsupported disk format", drive ); - end_request(CURRENT, 0); + fd_end_request_cur(-EIO); goto repeat; } type = minor2disktype[type].index; @@ -1444,8 +1446,8 @@ repeat: UD.autoprobe = 0; } - if (CURRENT->sector + 1 > UDT->blocks) { - end_request(CURRENT, 0); + if (blk_rq_pos(fd_request) + 1 > UDT->blocks) { + fd_end_request_cur(-EIO); goto repeat; } @@ -1453,9 +1455,9 @@ repeat: del_timer( &motor_off_timer ); ReqCnt = 0; - ReqCmd = rq_data_dir(CURRENT); - ReqBlock = CURRENT->sector; - ReqBuffer = CURRENT->buffer; + ReqCmd = rq_data_dir(fd_request); + ReqBlock = blk_rq_pos(fd_request); + ReqBuffer = fd_request->buffer; setup_req_params( drive ); do_fd_action( drive ); |