iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ide-cd: unify transfer padding in cdrom_newpc_intr()

Browse Source 
* 'thislen' is always <= cmd->nleft for non-fs requests so the transfer
  padding inside the 'while (thislen > 0)' loop can happen only for fs
  requests -- then move it out of the loop and unify with the transfer
  padding for non-fs requests ('thislen' == 'len' for fs requests).

* blk_dump_rq_flags() dumps all request flags so it is enough to pass
  only the function name to it.

* Update my Copyrights while at it.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-31 20:15:16 +02:00
parent 4a3d8cf48c
commit 14fa91ccba
1 changed files with 11 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/ide/ide-cd.c
View File

@ -4,7 +4,7 @@
* Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov>
* Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org>
* Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de>
* Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz
* Copyright (C) 2005, 2007-2009 Bartlomiej Zolnierkiewicz
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
@ -711,22 +711,8 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
while (thislen > 0) {
int blen = min_t(int, thislen, cmd->nleft);
if (cmd->nleft == 0) {
if (blk_fs_request(rq) && !write)
/*
* If the buffers are full, pipe the rest into
* oblivion.
*/
ide_pad_transfer(drive, 0, thislen);
else {
printk(KERN_ERR PFX "%s: confused, missing data\n",
drive->name);
blk_dump_rq_flags(rq, rq_data_dir(rq)
? "cdrom_newpc_intr, write"
: "cdrom_newpc_intr, read");
}
if (cmd->nleft == 0)
break;
}
ide_pio_bytes(drive, cmd, write, blen);
cmd->last_xfer_len += blen;
@ -739,8 +725,15 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
}
/* pad, if necessary */
if (!blk_fs_request(rq) && len > 0)
ide_pad_transfer(drive, write, len);
if (len > 0) {
if (blk_fs_request(rq) == 0 || write == 0)
ide_pad_transfer(drive, write, len);
else {
printk(KERN_ERR PFX "%s: confused, missing data\n",
drive->name);
blk_dump_rq_flags(rq, "cdrom_newpc_intr");
}
}
if (blk_pc_request(rq)) {
timeout = rq->timeout;