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author | Borislav Petkov <petkovbb@gmail.com> | 2009-05-01 20:35:21 +0200 |
---|---|---|
committer | Borislav Petkov <petkovbb@gmail.com> | 2009-05-15 06:43:59 +0200 |
commit | dfb7e621fa12c0579e88560ab176c5768f9e0bfb (patch) | |
tree | 9a0fc84735ee3290c366b4244763013ba07bcdd7 /drivers/ide/ide-atapi.c | |
parent | 10c0b3437c4dc0d14ac254bbe71e54ea5f238d97 (diff) | |
download | kernel_samsung_tuna-dfb7e621fa12c0579e88560ab176c5768f9e0bfb.zip kernel_samsung_tuna-dfb7e621fa12c0579e88560ab176c5768f9e0bfb.tar.gz kernel_samsung_tuna-dfb7e621fa12c0579e88560ab176c5768f9e0bfb.tar.bz2 |
ide-atapi: switch to blk_rq_bytes() on do_request() path
After the recent struct request cleanups, blk_rq_bytes() is guaranteed
to be valid and is the current total length of the rq's bio. Use that
instead of pc->req_xfer in the do_request() path after the command has
been queued
The remaining usage of pc->req_xfer now is only until we map the rq to a
bio.
While at it:
- remove local caching of rq completion length in ide_tape_issue_pc()
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Diffstat (limited to 'drivers/ide/ide-atapi.c')
-rw-r--r-- | drivers/ide/ide-atapi.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 8a894fa..7129495 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -370,7 +370,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) ? "write" : "read"); pc->flags |= PC_FLAG_DMA_ERROR; } else - pc->xferred = pc->req_xfer; + pc->xferred = blk_rq_bytes(rq); debug_log("%s: DMA finished\n", drive->name); } @@ -627,7 +627,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd) ide_hwif_t *hwif = drive->hwif; ide_expiry_t *expiry = NULL; struct request *rq = hwif->rq; - unsigned int timeout; + unsigned int timeout, bytes; u16 bcount; u8 valid_tf; u8 drq_int = !!(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT); @@ -647,9 +647,11 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd) pc->xferred = 0; valid_tf = IDE_VALID_DEVICE; - bcount = ((drive->media == ide_tape) ? - pc->req_xfer : - min(pc->req_xfer, 63 * 1024)); + bytes = blk_rq_bytes(rq); + + bcount = ((drive->media == ide_tape) ? bytes + : min_t(unsigned int, + bytes, 63 * 1024)); if (pc->flags & PC_FLAG_DMA_ERROR) { pc->flags &= ~PC_FLAG_DMA_ERROR; |