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ide: keep track of number of bytes instead of sectors in struct ide_cmd

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* Pass number of bytes instead of sectors to ide_init_sg_cmd().

* Pass number of bytes to process to ide_pio_sector() and rename
  it to ide_pio_bytes().

* Rename ->nsect field to ->nbytes in struct ide_cmd and use
  ->nbytes, ->nleft and ->cursg_ofs to keep track of number of
  bytes instead of sectors.

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2009-03-27 12:46:47 +01:00
parent 35b5d0be3d
commit bf717c0a2e
5 changed files with 24 additions and 24 deletions
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6
drivers/ide/ide-io.c
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@@ -245,9 +245,9 @@ void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd)
}
EXPORT_SYMBOL_GPL(ide_map_sg);
void ide_init_sg_cmd(struct ide_cmd *cmd, int nsect)
void ide_init_sg_cmd(struct ide_cmd *cmd, unsigned int nr_bytes)
{
cmd->nsect = cmd->nleft = nsect;
cmd->nbytes = cmd->nleft = nr_bytes;
cmd->cursg_ofs = 0;
cmd->cursg = NULL;
}
@@ -272,7 +272,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
if (cmd) {
if (cmd->protocol == ATA_PROT_PIO) {
ide_init_sg_cmd(cmd, rq->nr_sectors);
ide_init_sg_cmd(cmd, rq->nr_sectors << 9);
ide_map_sg(drive, cmd);
}