X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fide%2Fide-tape.c;h=d71a584f076547661674cc6876fe7e37cc9391ca;hb=5050b0921a0f838314b1b9c4d7c16d5c8ed8c1fc;hp=e2f4bb5490638de5c1326dc863c322417c99002b;hpb=8a84fc15ae5cafcc366dd85cf8e1ab2040679abc;p=linux-2.6-omap-h63xx.git diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index e2f4bb54906..d71a584f076 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -565,7 +565,7 @@ typedef struct os_dat_s { * The following parameter is used to select the point in the internal * tape fifo in which we will start to refill the buffer. Decreasing * the following parameter will improve the system's latency and - * interactive response, while using a high value might improve sytem + * interactive response, while using a high value might improve system * throughput. */ #define IDETAPE_FIFO_THRESHOLD 2 @@ -614,17 +614,6 @@ typedef struct os_dat_s { /*************************** End of tunable parameters ***********************/ -/* - * Debugging/Performance analysis - * - * I/O trace support - */ -#define USE_IOTRACE 0 -#if USE_IOTRACE -#include -#define IO_IDETAPE_FIFO 500 -#endif - /* * Read/Write error simulation */ @@ -640,7 +629,7 @@ typedef enum { } idetape_chrdev_direction_t; struct idetape_bh { - unsigned short b_size; + u32 b_size; atomic_t b_count; struct idetape_bh *b_reqnext; char *b_data; @@ -1701,6 +1690,11 @@ static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects) if (error) tape->failed_pc = NULL; + if (!blk_special_request(rq)) { + ide_end_request(drive, uptodate, nr_sects); + return 0; + } + spin_lock_irqsave(&tape->spinlock, flags); /* The request was a pipelined data transfer request */ @@ -1819,9 +1813,8 @@ static ide_startstop_t idetape_retry_pc (ide_drive_t *drive) idetape_tape_t *tape = drive->driver_data; idetape_pc_t *pc; struct request *rq; - atapi_error_t error; - error.all = HWIF(drive)->INB(IDE_ERROR_REG); + (void)drive->hwif->INB(IDE_ERROR_REG); pc = idetape_next_pc_storage(drive); rq = idetape_next_rq_storage(drive); idetape_create_request_sense_cmd(pc); @@ -1859,15 +1852,13 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - atapi_status_t status; - atapi_bcount_t bcount; - atapi_ireason_t ireason; idetape_pc_t *pc = tape->pc; - unsigned int temp; #if SIMULATE_ERRORS static int error_sim_count = 0; #endif + u16 bcount; + u8 stat, ireason; #if IDETAPE_DEBUG_LOG if (tape->debug_level >= 4) @@ -1876,10 +1867,10 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive) #endif /* IDETAPE_DEBUG_LOG */ /* Clear the interrupt */ - status.all = HWIF(drive)->INB(IDE_STATUS_REG); + stat = hwif->INB(IDE_STATUS_REG); if (test_bit(PC_DMA_IN_PROGRESS, &pc->flags)) { - if (HWIF(drive)->ide_dma_end(drive) || status.b.check) { + if (hwif->ide_dma_end(drive) || (stat & ERR_STAT)) { /* * A DMA error is sometimes expected. For example, * if the tape is crossing a filemark during a @@ -1913,7 +1904,7 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive) } /* No more interrupts */ - if (!status.b.drq) { + if ((stat & DRQ_STAT) == 0) { #if IDETAPE_DEBUG_LOG if (tape->debug_level >= 2) printk(KERN_INFO "ide-tape: Packet command completed, %d bytes transferred\n", pc->actually_transferred); @@ -1928,12 +1919,13 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive) (++error_sim_count % 100) == 0) { printk(KERN_INFO "ide-tape: %s: simulating error\n", tape->name); - status.b.check = 1; + stat |= ERR_STAT; } #endif - if (status.b.check && pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) - status.b.check = 0; - if (status.b.check || test_bit(PC_DMA_ERROR, &pc->flags)) { /* Error detected */ + if ((stat & ERR_STAT) && pc->c[0] == IDETAPE_REQUEST_SENSE_CMD) + stat &= ~ERR_STAT; + if ((stat & ERR_STAT) || test_bit(PC_DMA_ERROR, &pc->flags)) { + /* Error detected */ #if IDETAPE_DEBUG_LOG if (tape->debug_level >= 1) printk(KERN_INFO "ide-tape: %s: I/O error\n", @@ -1952,7 +1944,7 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive) } pc->error = 0; if (test_bit(PC_WAIT_FOR_DSC, &pc->flags) && - !status.b.dsc) { + (stat & SEEK_STAT) == 0) { /* Media access command */ tape->dsc_polling_start = jiffies; tape->dsc_polling_frequency = IDETAPE_DSC_MA_FAST; @@ -1970,34 +1962,34 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive) printk(KERN_ERR "ide-tape: The tape wants to issue more " "interrupts in DMA mode\n"); printk(KERN_ERR "ide-tape: DMA disabled, reverting to PIO\n"); - (void)__ide_dma_off(drive); + ide_dma_off(drive); return ide_do_reset(drive); } /* Get the number of bytes to transfer on this interrupt. */ - bcount.b.high = hwif->INB(IDE_BCOUNTH_REG); - bcount.b.low = hwif->INB(IDE_BCOUNTL_REG); + bcount = (hwif->INB(IDE_BCOUNTH_REG) << 8) | + hwif->INB(IDE_BCOUNTL_REG); - ireason.all = hwif->INB(IDE_IREASON_REG); + ireason = hwif->INB(IDE_IREASON_REG); - if (ireason.b.cod) { + if (ireason & CD) { printk(KERN_ERR "ide-tape: CoD != 0 in idetape_pc_intr\n"); return ide_do_reset(drive); } - if (ireason.b.io == test_bit(PC_WRITING, &pc->flags)) { + if (((ireason & IO) == IO) == test_bit(PC_WRITING, &pc->flags)) { /* Hopefully, we will never get here */ printk(KERN_ERR "ide-tape: We wanted to %s, ", - ireason.b.io ? "Write":"Read"); + (ireason & IO) ? "Write" : "Read"); printk(KERN_ERR "ide-tape: but the tape wants us to %s !\n", - ireason.b.io ? "Read":"Write"); + (ireason & IO) ? "Read" : "Write"); return ide_do_reset(drive); } if (!test_bit(PC_WRITING, &pc->flags)) { /* Reading - Check that we have enough space */ - temp = pc->actually_transferred + bcount.all; + temp = pc->actually_transferred + bcount; if (temp > pc->request_transfer) { if (temp > pc->buffer_size) { printk(KERN_ERR "ide-tape: The tape wants to send us more data than expected - discarding data\n"); - idetape_discard_data(drive, bcount.all); + idetape_discard_data(drive, bcount); ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); return ide_started; } @@ -2009,23 +2001,26 @@ static ide_startstop_t idetape_pc_intr (ide_drive_t *drive) } if (test_bit(PC_WRITING, &pc->flags)) { if (pc->bh != NULL) - idetape_output_buffers(drive, pc, bcount.all); + idetape_output_buffers(drive, pc, bcount); else /* Write the current buffer */ - HWIF(drive)->atapi_output_bytes(drive, pc->current_position, bcount.all); + hwif->atapi_output_bytes(drive, pc->current_position, + bcount); } else { if (pc->bh != NULL) - idetape_input_buffers(drive, pc, bcount.all); + idetape_input_buffers(drive, pc, bcount); else /* Read the current buffer */ - HWIF(drive)->atapi_input_bytes(drive, pc->current_position, bcount.all); + hwif->atapi_input_bytes(drive, pc->current_position, + bcount); } /* Update the current position */ - pc->actually_transferred += bcount.all; - pc->current_position += bcount.all; + pc->actually_transferred += bcount; + pc->current_position += bcount; #if IDETAPE_DEBUG_LOG if (tape->debug_level >= 2) - printk(KERN_INFO "ide-tape: [cmd %x] transferred %d bytes on that interrupt\n", pc->c[0], bcount.all); + printk(KERN_INFO "ide-tape: [cmd %x] transferred %d bytes " + "on that interrupt\n", pc->c[0], bcount); #endif /* And set the interrupt handler again */ ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); @@ -2079,28 +2074,28 @@ static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive) ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; idetape_pc_t *pc = tape->pc; - atapi_ireason_t ireason; int retries = 100; ide_startstop_t startstop; + u8 ireason; if (ide_wait_stat(&startstop,drive,DRQ_STAT,BUSY_STAT,WAIT_READY)) { printk(KERN_ERR "ide-tape: Strange, packet command initiated yet DRQ isn't asserted\n"); return startstop; } - ireason.all = hwif->INB(IDE_IREASON_REG); - while (retries-- && (!ireason.b.cod || ireason.b.io)) { + ireason = hwif->INB(IDE_IREASON_REG); + while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) { printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while issuing " "a packet command, retrying\n"); udelay(100); - ireason.all = hwif->INB(IDE_IREASON_REG); + ireason = hwif->INB(IDE_IREASON_REG); if (retries == 0) { printk(KERN_ERR "ide-tape: (IO,CoD != (0,1) while " "issuing a packet command, ignoring\n"); - ireason.b.cod = 1; - ireason.b.io = 0; + ireason |= CD; + ireason &= ~IO; } } - if (!ireason.b.cod || ireason.b.io) { + if ((ireason & CD) == 0 || (ireason & IO)) { printk(KERN_ERR "ide-tape: (IO,CoD) != (0,1) while issuing " "a packet command\n"); return ide_do_reset(drive); @@ -2121,8 +2116,8 @@ static ide_startstop_t idetape_issue_packet_command (ide_drive_t *drive, idetape { ide_hwif_t *hwif = drive->hwif; idetape_tape_t *tape = drive->driver_data; - atapi_bcount_t bcount; int dma_ok = 0; + u16 bcount; #if IDETAPE_DEBUG_BUGS if (tape->pc->c[0] == IDETAPE_REQUEST_SENSE_CMD && @@ -2171,22 +2166,19 @@ static ide_startstop_t idetape_issue_packet_command (ide_drive_t *drive, idetape pc->actually_transferred = 0; pc->current_position = pc->buffer; /* Request to transfer the entire buffer at once */ - bcount.all = pc->request_transfer; + bcount = pc->request_transfer; if (test_and_clear_bit(PC_DMA_ERROR, &pc->flags)) { printk(KERN_WARNING "ide-tape: DMA disabled, " "reverting to PIO\n"); - (void)__ide_dma_off(drive); + ide_dma_off(drive); } if (test_bit(PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma) dma_ok = !hwif->dma_setup(drive); - if (IDE_CONTROL_REG) - hwif->OUTB(drive->ctl, IDE_CONTROL_REG); - hwif->OUTB(dma_ok ? 1 : 0, IDE_FEATURE_REG); /* Use PIO/DMA */ - hwif->OUTB(bcount.b.high, IDE_BCOUNTH_REG); - hwif->OUTB(bcount.b.low, IDE_BCOUNTL_REG); - hwif->OUTB(drive->select.all, IDE_SELECT_REG); + ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK | + IDE_TFLAG_OUT_DEVICE, bcount, dma_ok); + if (dma_ok) /* Will begin DMA later */ set_bit(PC_DMA_IN_PROGRESS, &pc->flags); if (test_bit(IDETAPE_DRQ_INTERRUPT, &tape->flags)) { @@ -2296,11 +2288,11 @@ static ide_startstop_t idetape_media_access_finished (ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; idetape_pc_t *pc = tape->pc; - atapi_status_t status; + u8 stat; - status.all = HWIF(drive)->INB(IDE_STATUS_REG); - if (status.b.dsc) { - if (status.b.check) { + stat = drive->hwif->INB(IDE_STATUS_REG); + if (stat & SEEK_STAT) { + if (stat & ERR_STAT) { /* Error detected */ if (pc->c[0] != IDETAPE_TEST_UNIT_READY_CMD) printk(KERN_ERR "ide-tape: %s: I/O error, ", @@ -2418,7 +2410,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, idetape_tape_t *tape = drive->driver_data; idetape_pc_t *pc = NULL; struct request *postponed_rq = tape->postponed_rq; - atapi_status_t status; + u8 stat; #if IDETAPE_DEBUG_LOG #if 0 @@ -2466,7 +2458,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, * If the tape is still busy, postpone our request and service * the other device meanwhile. */ - status.all = HWIF(drive)->INB(IDE_STATUS_REG); + stat = drive->hwif->INB(IDE_STATUS_REG); if (!drive->dsc_overlap && !(rq->cmd[0] & REQ_IDETAPE_PC2)) set_bit(IDETAPE_IGNORE_DSC, &tape->flags); @@ -2482,7 +2474,7 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, tape->insert_speed = tape->insert_size / 1024 * HZ / (jiffies - tape->insert_time); calculate_speeds(drive); if (!test_and_clear_bit(IDETAPE_IGNORE_DSC, &tape->flags) && - !status.b.dsc) { + (stat & SEEK_STAT) == 0) { if (postponed_rq == NULL) { tape->dsc_polling_start = jiffies; tape->dsc_polling_frequency = tape->best_dsc_rw_frequency; @@ -2503,9 +2495,6 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } if (rq->cmd[0] & REQ_IDETAPE_READ) { tape->buffer_head++; -#if USE_IOTRACE - IO_trace(IO_IDETAPE_FIFO, tape->pipeline_head, tape->buffer_head, tape->tape_head, tape->minor); -#endif tape->postpone_cnt = 0; pc = idetape_next_pc_storage(drive); idetape_create_read_cmd(tape, pc, rq->current_nr_sectors, (struct idetape_bh *)rq->special); @@ -2513,9 +2502,6 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, } if (rq->cmd[0] & REQ_IDETAPE_WRITE) { tape->buffer_head++; -#if USE_IOTRACE - IO_trace(IO_IDETAPE_FIFO, tape->pipeline_head, tape->buffer_head, tape->tape_head, tape->minor); -#endif tape->postpone_cnt = 0; pc = idetape_next_pc_storage(drive); idetape_create_write_cmd(tape, pc, rq->current_nr_sectors, (struct idetape_bh *)rq->special); @@ -2573,11 +2559,11 @@ static idetape_stage_t *__idetape_kmalloc_stage (idetape_tape_t *tape, int full, int pages = tape->pages_per_stage; char *b_data = NULL; - if ((stage = (idetape_stage_t *) kmalloc (sizeof (idetape_stage_t),GFP_KERNEL)) == NULL) + if ((stage = kmalloc(sizeof (idetape_stage_t),GFP_KERNEL)) == NULL) return NULL; stage->next = NULL; - bh = stage->bh = (struct idetape_bh *)kmalloc(sizeof(struct idetape_bh), GFP_KERNEL); + bh = stage->bh = kmalloc(sizeof(struct idetape_bh), GFP_KERNEL); if (bh == NULL) goto abort; bh->b_reqnext = NULL; @@ -2607,7 +2593,7 @@ static idetape_stage_t *__idetape_kmalloc_stage (idetape_tape_t *tape, int full, continue; } prev_bh = bh; - if ((bh = (struct idetape_bh *)kmalloc(sizeof(struct idetape_bh), GFP_KERNEL)) == NULL) { + if ((bh = kmalloc(sizeof(struct idetape_bh), GFP_KERNEL)) == NULL) { free_page((unsigned long) b_data); goto abort; } @@ -3242,9 +3228,6 @@ static int idetape_add_chrdev_write_request (ide_drive_t *drive, int blocks) idetape_switch_buffers(tape, new_stage); idetape_add_stage_tail(drive, new_stage); tape->pipeline_head++; -#if USE_IOTRACE - IO_trace(IO_IDETAPE_FIFO, tape->pipeline_head, tape->buffer_head, tape->tape_head, tape->minor); -#endif calculate_speeds(drive); /* @@ -3494,9 +3477,6 @@ static int idetape_add_chrdev_read_request (ide_drive_t *drive,int blocks) idetape_remove_stage_head(drive); spin_unlock_irqrestore(&tape->spinlock, flags); tape->pipeline_head++; -#if USE_IOTRACE - IO_trace(IO_IDETAPE_FIFO, tape->pipeline_head, tape->buffer_head, tape->tape_head, tape->minor); -#endif calculate_speeds(drive); } #if IDETAPE_DEBUG_BUGS @@ -4561,28 +4541,33 @@ static void idetape_get_blocksize_from_block_descriptor(ide_drive_t *drive) printk(KERN_INFO "ide-tape: Adjusted block size - %d\n", tape->tape_block_size); #endif /* IDETAPE_DEBUG_INFO */ } + +#ifdef CONFIG_IDE_PROC_FS static void idetape_add_settings (ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; /* - * drive setting name read/write ioctl ioctl data type min max mul_factor div_factor data pointer set function + * drive setting name read/write data type min max mul_factor div_factor data pointer set function */ - ide_add_setting(drive, "buffer", SETTING_READ, -1, -1, TYPE_SHORT, 0, 0xffff, 1, 2, &tape->capabilities.buffer_size, NULL); - ide_add_setting(drive, "pipeline_min", SETTING_RW, -1, -1, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->min_pipeline, NULL); - ide_add_setting(drive, "pipeline", SETTING_RW, -1, -1, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->max_stages, NULL); - ide_add_setting(drive, "pipeline_max", SETTING_RW, -1, -1, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->max_pipeline, NULL); - ide_add_setting(drive, "pipeline_used",SETTING_READ, -1, -1, TYPE_INT, 0, 0xffff, tape->stage_size / 1024, 1, &tape->nr_stages, NULL); - ide_add_setting(drive, "pipeline_pending",SETTING_READ,-1, -1, TYPE_INT, 0, 0xffff, tape->stage_size / 1024, 1, &tape->nr_pending_stages, NULL); - ide_add_setting(drive, "speed", SETTING_READ, -1, -1, TYPE_SHORT, 0, 0xffff, 1, 1, &tape->capabilities.speed, NULL); - ide_add_setting(drive, "stage", SETTING_READ, -1, -1, TYPE_INT, 0, 0xffff, 1, 1024, &tape->stage_size, NULL); - ide_add_setting(drive, "tdsc", SETTING_RW, -1, -1, TYPE_INT, IDETAPE_DSC_RW_MIN, IDETAPE_DSC_RW_MAX, 1000, HZ, &tape->best_dsc_rw_frequency, NULL); - ide_add_setting(drive, "dsc_overlap", SETTING_RW, -1, -1, TYPE_BYTE, 0, 1, 1, 1, &drive->dsc_overlap, NULL); - ide_add_setting(drive, "pipeline_head_speed_c",SETTING_READ, -1, -1, TYPE_INT, 0, 0xffff, 1, 1, &tape->controlled_pipeline_head_speed, NULL); - ide_add_setting(drive, "pipeline_head_speed_u",SETTING_READ, -1, -1, TYPE_INT, 0, 0xffff, 1, 1, &tape->uncontrolled_pipeline_head_speed, NULL); - ide_add_setting(drive, "avg_speed", SETTING_READ, -1, -1, TYPE_INT, 0, 0xffff, 1, 1, &tape->avg_speed, NULL); - ide_add_setting(drive, "debug_level",SETTING_RW, -1, -1, TYPE_INT, 0, 0xffff, 1, 1, &tape->debug_level, NULL); + ide_add_setting(drive, "buffer", SETTING_READ, TYPE_SHORT, 0, 0xffff, 1, 2, &tape->capabilities.buffer_size, NULL); + ide_add_setting(drive, "pipeline_min", SETTING_RW, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->min_pipeline, NULL); + ide_add_setting(drive, "pipeline", SETTING_RW, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->max_stages, NULL); + ide_add_setting(drive, "pipeline_max", SETTING_RW, TYPE_INT, 1, 0xffff, tape->stage_size / 1024, 1, &tape->max_pipeline, NULL); + ide_add_setting(drive, "pipeline_used", SETTING_READ, TYPE_INT, 0, 0xffff, tape->stage_size / 1024, 1, &tape->nr_stages, NULL); + ide_add_setting(drive, "pipeline_pending", SETTING_READ, TYPE_INT, 0, 0xffff, tape->stage_size / 1024, 1, &tape->nr_pending_stages, NULL); + ide_add_setting(drive, "speed", SETTING_READ, TYPE_SHORT, 0, 0xffff, 1, 1, &tape->capabilities.speed, NULL); + ide_add_setting(drive, "stage", SETTING_READ, TYPE_INT, 0, 0xffff, 1, 1024, &tape->stage_size, NULL); + ide_add_setting(drive, "tdsc", SETTING_RW, TYPE_INT, IDETAPE_DSC_RW_MIN, IDETAPE_DSC_RW_MAX, 1000, HZ, &tape->best_dsc_rw_frequency, NULL); + ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->dsc_overlap, NULL); + ide_add_setting(drive, "pipeline_head_speed_c",SETTING_READ, TYPE_INT, 0, 0xffff, 1, 1, &tape->controlled_pipeline_head_speed, NULL); + ide_add_setting(drive, "pipeline_head_speed_u",SETTING_READ, TYPE_INT, 0, 0xffff, 1, 1, &tape->uncontrolled_pipeline_head_speed,NULL); + ide_add_setting(drive, "avg_speed", SETTING_READ, TYPE_INT, 0, 0xffff, 1, 1, &tape->avg_speed, NULL); + ide_add_setting(drive, "debug_level", SETTING_RW, TYPE_INT, 0, 0xffff, 1, 1, &tape->debug_level, NULL); } +#else +static inline void idetape_add_settings(ide_drive_t *drive) { ; } +#endif /* * ide_setup is called to: @@ -4703,7 +4688,7 @@ static void ide_tape_remove(ide_drive_t *drive) { idetape_tape_t *tape = drive->driver_data; - ide_unregister_subdriver(drive, tape->driver); + ide_proc_unregister_driver(drive, tape->driver); ide_unregister_region(tape->disk); @@ -4720,18 +4705,15 @@ static void ide_tape_release(struct kref *kref) drive->dsc_overlap = 0; drive->driver_data = NULL; - class_device_destroy(idetape_sysfs_class, - MKDEV(IDETAPE_MAJOR, tape->minor)); - class_device_destroy(idetape_sysfs_class, - MKDEV(IDETAPE_MAJOR, tape->minor + 128)); + device_destroy(idetape_sysfs_class, MKDEV(IDETAPE_MAJOR, tape->minor)); + device_destroy(idetape_sysfs_class, MKDEV(IDETAPE_MAJOR, tape->minor + 128)); idetape_devs[tape->minor] = NULL; g->private_data = NULL; put_disk(g); kfree(tape); } -#ifdef CONFIG_PROC_FS - +#ifdef CONFIG_IDE_PROC_FS static int proc_idetape_read_name (char *page, char **start, off_t off, int count, int *eof, void *data) { @@ -4749,11 +4731,6 @@ static ide_proc_entry_t idetape_proc[] = { { "name", S_IFREG|S_IRUGO, proc_idetape_read_name, NULL }, { NULL, 0, NULL, NULL } }; - -#else - -#define idetape_proc NULL - #endif static int ide_tape_probe(ide_drive_t *); @@ -4773,13 +4750,15 @@ static ide_driver_t idetape_driver = { .end_request = idetape_end_request, .error = __ide_error, .abort = __ide_abort, +#ifdef CONFIG_IDE_PROC_FS .proc = idetape_proc, +#endif }; /* * Our character device supporting functions, passed to register_chrdev. */ -static struct file_operations idetape_fops = { +static const struct file_operations idetape_fops = { .owner = THIS_MODULE, .read = idetape_chrdev_read, .write = idetape_chrdev_write, @@ -4792,15 +4771,10 @@ static int idetape_open(struct inode *inode, struct file *filp) { struct gendisk *disk = inode->i_bdev->bd_disk; struct ide_tape_obj *tape; - ide_drive_t *drive; if (!(tape = ide_tape_get(disk))) return -ENXIO; - drive = tape->drive; - - drive->usage++; - return 0; } @@ -4808,9 +4782,6 @@ static int idetape_release(struct inode *inode, struct file *filp) { struct gendisk *disk = inode->i_bdev->bd_disk; struct ide_tape_obj *tape = ide_tape_g(disk); - ide_drive_t *drive = tape->drive; - - drive->usage--; ide_tape_put(tape); @@ -4860,7 +4831,7 @@ static int ide_tape_probe(ide_drive_t *drive) printk(KERN_WARNING "ide-tape: Use drive %s with ide-scsi emulation and osst.\n", drive->name); printk(KERN_WARNING "ide-tape: OnStream support will be removed soon from ide-tape!\n"); } - tape = (idetape_tape_t *) kzalloc (sizeof (idetape_tape_t), GFP_KERNEL); + tape = kzalloc(sizeof (idetape_tape_t), GFP_KERNEL); if (tape == NULL) { printk(KERN_ERR "ide-tape: %s: Can't allocate a tape structure\n", drive->name); goto failed; @@ -4872,7 +4843,7 @@ static int ide_tape_probe(ide_drive_t *drive) ide_init_disk(g, drive); - ide_register_subdriver(drive, &idetape_driver); + ide_proc_register_driver(drive, &idetape_driver); kref_init(&tape->kref); @@ -4892,10 +4863,10 @@ static int ide_tape_probe(ide_drive_t *drive) idetape_setup(drive, tape, minor); - class_device_create(idetape_sysfs_class, NULL, - MKDEV(IDETAPE_MAJOR, minor), &drive->gendev, "%s", tape->name); - class_device_create(idetape_sysfs_class, NULL, - MKDEV(IDETAPE_MAJOR, minor + 128), &drive->gendev, "n%s", tape->name); + device_create(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor), "%s", tape->name); + device_create(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor + 128), "n%s", tape->name); g->fops = &idetape_block_ops; ide_register_region(g);