From: Borislav Petkov Date: Sun, 27 Apr 2008 13:38:33 +0000 (+0200) Subject: ide-tape: mv tape->stage_size tape->buffer_size X-Git-Tag: v2.6.26-rc1~1029^2~9 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=f73850a302de45c7cb6672d0e8b103c1f122b6ae;p=linux-2.6-omap-h63xx.git ide-tape: mv tape->stage_size tape->buffer_size Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index dc7abb25a8e..6836d0d92d8 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -308,7 +308,7 @@ typedef struct ide_tape_obj { */ /* Data buffer size chosen based on the tape's recommendation */ - int stage_size; + int buffer_size; idetape_stage_t *merge_stage; int merge_stage_size; struct idetape_bh *bh; @@ -1168,7 +1168,7 @@ static void idetape_create_read_cmd(idetape_tape_t *tape, pc->buf = NULL; pc->buf_size = length * tape->blk_size; pc->req_xfer = pc->buf_size; - if (pc->req_xfer == tape->stage_size) + if (pc->req_xfer == tape->buffer_size) pc->flags |= PC_FLAG_DMA_RECOMMENDED; } @@ -1188,7 +1188,7 @@ static void idetape_create_write_cmd(idetape_tape_t *tape, pc->buf = NULL; pc->buf_size = length * tape->blk_size; pc->req_xfer = pc->buf_size; - if (pc->req_xfer == tape->stage_size) + if (pc->req_xfer == tape->buffer_size) pc->flags |= PC_FLAG_DMA_RECOMMENDED; } @@ -1291,7 +1291,7 @@ out: /* * The function below uses __get_free_pages to allocate a data buffer of size - * tape->stage_size (or a bit more). We attempt to combine sequential pages as + * tape->buffer_size (or a bit more). We attempt to combine sequential pages as * much as possible. * * It returns a pointer to the newly allocated buffer, or NULL in case of @@ -1792,9 +1792,9 @@ static void idetape_empty_write_pipeline(ide_drive_t *drive) " but we are not writing.\n"); return; } - if (tape->merge_stage_size > tape->stage_size) { + if (tape->merge_stage_size > tape->buffer_size) { printk(KERN_ERR "ide-tape: bug: merge_buffer too big\n"); - tape->merge_stage_size = tape->stage_size; + tape->merge_stage_size = tape->buffer_size; } if (tape->merge_stage_size) { blocks = tape->merge_stage_size / tape->blk_size; @@ -1905,7 +1905,7 @@ static void idetape_pad_zeros(ide_drive_t *drive, int bcount) unsigned int count; bh = tape->merge_stage->bh; - count = min(tape->stage_size, bcount); + count = min(tape->buffer_size, bcount); bcount -= count; blocks = count / tape->blk_size; while (count) { @@ -2074,7 +2074,7 @@ static ssize_t idetape_chrdev_read(struct file *file, char __user *buf, tape->merge_stage_size -= actually_read; count -= actually_read; } - while (count >= tape->stage_size) { + while (count >= tape->buffer_size) { bytes_read = idetape_add_chrdev_read_request(drive, ctl); if (bytes_read <= 0) goto finish; @@ -2156,12 +2156,12 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, if (count == 0) return (0); if (tape->merge_stage_size) { - if (tape->merge_stage_size >= tape->stage_size) { + if (tape->merge_stage_size >= tape->buffer_size) { printk(KERN_ERR "ide-tape: bug: merge buf too big\n"); tape->merge_stage_size = 0; } actually_written = min((unsigned int) - (tape->stage_size - tape->merge_stage_size), + (tape->buffer_size - tape->merge_stage_size), (unsigned int)count); if (idetape_copy_stage_from_user(tape, buf, actually_written)) ret = -EFAULT; @@ -2169,7 +2169,7 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, tape->merge_stage_size += actually_written; count -= actually_written; - if (tape->merge_stage_size == tape->stage_size) { + if (tape->merge_stage_size == tape->buffer_size) { ssize_t retval; tape->merge_stage_size = 0; retval = idetape_add_chrdev_write_request(drive, ctl); @@ -2177,14 +2177,14 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, return (retval); } } - while (count >= tape->stage_size) { + while (count >= tape->buffer_size) { ssize_t retval; - if (idetape_copy_stage_from_user(tape, buf, tape->stage_size)) + if (idetape_copy_stage_from_user(tape, buf, tape->buffer_size)) ret = -EFAULT; - buf += tape->stage_size; - count -= tape->stage_size; + buf += tape->buffer_size; + count -= tape->buffer_size; retval = idetape_add_chrdev_write_request(drive, ctl); - actually_written += tape->stage_size; + actually_written += tape->buffer_size; if (retval <= 0) return (retval); } @@ -2678,8 +2678,8 @@ static void idetape_add_settings(ide_drive_t *drive) 1, 2, (u16 *)&tape->caps[16], NULL); ide_add_setting(drive, "speed", SETTING_READ, TYPE_SHORT, 0, 0xffff, 1, 1, (u16 *)&tape->caps[14], NULL); - ide_add_setting(drive, "stage", SETTING_READ, TYPE_INT, 0, 0xffff, 1, - 1024, &tape->stage_size, NULL); + ide_add_setting(drive, "buffer_size", SETTING_READ, TYPE_INT, 0, 0xffff, + 1, 1024, &tape->buffer_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_freq, NULL); @@ -2709,7 +2709,7 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) { unsigned long t; int speed; - int stage_size; + int buffer_size; u8 gcw[2]; u16 *ctl = (u16 *)&tape->caps[12]; @@ -2739,23 +2739,23 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) idetape_get_mode_sense_results(drive); ide_tape_get_bsize_from_bdesc(drive); tape->user_bs_factor = 1; - tape->stage_size = *ctl * tape->blk_size; - while (tape->stage_size > 0xffff) { + tape->buffer_size = *ctl * tape->blk_size; + while (tape->buffer_size > 0xffff) { printk(KERN_NOTICE "ide-tape: decreasing stage size\n"); *ctl /= 2; - tape->stage_size = *ctl * tape->blk_size; + tape->buffer_size = *ctl * tape->blk_size; } - stage_size = tape->stage_size; - tape->pages_per_stage = stage_size / PAGE_SIZE; - if (stage_size % PAGE_SIZE) { + buffer_size = tape->buffer_size; + tape->pages_per_stage = buffer_size / PAGE_SIZE; + if (buffer_size % PAGE_SIZE) { tape->pages_per_stage++; - tape->excess_bh_size = PAGE_SIZE - stage_size % PAGE_SIZE; + tape->excess_bh_size = PAGE_SIZE - buffer_size % PAGE_SIZE; } /* select the "best" DSC read/write polling freq */ speed = max(*(u16 *)&tape->caps[14], *(u16 *)&tape->caps[8]); - t = (IDETAPE_FIFO_THRESHOLD * tape->stage_size * HZ) / (speed * 1000); + t = (IDETAPE_FIFO_THRESHOLD * tape->buffer_size * HZ) / (speed * 1000); /* * Ensure that the number we got makes sense; limit it within @@ -2767,8 +2767,8 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, " "%lums tDSC%s\n", drive->name, tape->name, *(u16 *)&tape->caps[14], - (*(u16 *)&tape->caps[16] * 512) / tape->stage_size, - tape->stage_size / 1024, + (*(u16 *)&tape->caps[16] * 512) / tape->buffer_size, + tape->buffer_size / 1024, tape->best_dsc_rw_freq * 1000 / HZ, drive->using_dma ? ", DMA":"");