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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-31 20:15:16 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-31 20:15:16 +0200 |
| commit | 14fa91ccbafa02a71cfb53f9c830b8c0c65119d0 (patch) | |
| tree | 4e5b5be39779469684d4936c8e5ed7ef068d7eb0 /drivers/ide | |
| parent | 4a3d8cf48c7baf3439aed06c847cd4562adfc468 (diff) | |
| download | op-kernel-dev-14fa91ccbafa02a71cfb53f9c830b8c0c65119d0.zip op-kernel-dev-14fa91ccbafa02a71cfb53f9c830b8c0c65119d0.tar.gz | |
ide-cd: unify transfer padding in cdrom_newpc_intr()
* '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>
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-cd.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 11d8d5b..0201201 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -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; |
