From: Bartlomiej Zolnierkiewicz Date: Fri, 27 Mar 2009 11:46:34 +0000 (+0100) Subject: ide-{floppy,tape}: cleanup ide*_end_request() X-Git-Tag: firefly_0821_release~15198^2~31 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=313afea7f25cc6d420179e0b316499c164e3e372;p=firefly-linux-kernel-4.4.55.git ide-{floppy,tape}: cleanup ide*_end_request() * ide*_end_request() is only called with uptodate == 0 or uptodate == 1 so cleanup it accordingly. * Inline ide*_end_request() content at call sites so the only user left is ->end_request method. * ->end_request is now used only for private driver requests so remove handling of other requests from ide*_end_request(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index fb235641da33..bdd8f8e2df6d 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -62,40 +62,21 @@ #define IDEFLOPPY_PC_DELAY (HZ/20) /* default delay for ZIP 100 (50ms) */ /* - * Used to finish servicing a request. For read/write requests, we will call - * ide_end_request to pass to the next buffer. + * Used to finish servicing a private request. */ static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs) { struct request *rq = drive->hwif->rq; - int error; ide_debug_log(IDE_DBG_FUNC, "enter"); - switch (uptodate) { - case 0: - error = IDE_DRV_ERROR_GENERAL; - break; - - case 1: - error = 0; - break; - - default: - error = uptodate; - } - - if (error) + if (uptodate == 0) drive->failed_pc = NULL; - if (!blk_special_request(rq)) { - /* our real local end request function */ - ide_end_request(drive, uptodate, nsecs); - return 0; - } - rq->errors = error; - /* fixme: need to move this local also */ + rq->errors = uptodate ? 0 : IDE_DRV_ERROR_GENERAL; + ide_complete_rq(drive, 0); + return 0; } @@ -106,13 +87,14 @@ static void idefloppy_update_buffers(ide_drive_t *drive, struct bio *bio = rq->bio; while ((bio = rq->bio) != NULL) - ide_floppy_end_request(drive, 1, 0); + ide_end_request(drive, 1, 0); } static void ide_floppy_callback(ide_drive_t *drive, int dsc) { struct ide_disk_obj *floppy = drive->driver_data; struct ide_atapi_pc *pc = drive->pc; + struct request *rq = pc->rq; int uptodate = pc->error ? 0 : 1; ide_debug_log(IDE_DBG_FUNC, "enter"); @@ -121,7 +103,7 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc) drive->failed_pc = NULL; if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || - (pc->rq && blk_pc_request(pc->rq))) + (rq && blk_pc_request(rq))) uptodate = 1; /* FIXME */ else if (pc->c[0] == GPCMD_REQUEST_SENSE) { u8 *buf = pc->buf; @@ -145,7 +127,14 @@ static void ide_floppy_callback(ide_drive_t *drive, int dsc) "Aborting request!\n"); } - ide_floppy_end_request(drive, uptodate, 0); + if (uptodate == 0) + drive->failed_pc = NULL; + + if (blk_special_request(rq)) { + rq->errors = uptodate ? 0 : IDE_DRV_ERROR_GENERAL; + ide_complete_rq(drive, 0); + } else + ide_end_request(drive, uptodate, 0); } static void ide_floppy_report_error(struct ide_disk_obj *floppy, @@ -286,21 +275,25 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, : "dev?")); if (rq->errors >= ERROR_MAX) { - if (drive->failed_pc) + if (drive->failed_pc) { ide_floppy_report_error(floppy, drive->failed_pc); - else + drive->failed_pc = NULL; + } else printk(KERN_ERR PFX "%s: I/O error\n", drive->name); - ide_floppy_end_request(drive, 0, 0); - return ide_stopped; + if (blk_special_request(rq)) { + rq->errors = IDE_DRV_ERROR_GENERAL; + ide_complete_rq(drive, 0); + return ide_stopped; + } else + goto out_end; } if (blk_fs_request(rq)) { if (((long)rq->sector % floppy->bs_factor) || (rq->nr_sectors % floppy->bs_factor)) { printk(KERN_ERR PFX "%s: unsupported r/w rq size\n", drive->name); - ide_floppy_end_request(drive, 0, 0); - return ide_stopped; + goto out_end; } pc = &floppy->queued_pc; idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block); @@ -311,8 +304,7 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, idefloppy_blockpc_cmd(floppy, pc, rq); } else { blk_dump_rq_flags(rq, PFX "unsupported command in queue"); - ide_floppy_end_request(drive, 0, 0); - return ide_stopped; + goto out_end; } if (blk_fs_request(rq) || pc->req_xfer) { @@ -326,6 +318,10 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, pc->rq = rq; return idefloppy_issue_pc(drive, pc); +out_end: + drive->failed_pc = NULL; + ide_end_request(drive, 0, 0); + return ide_stopped; } /* diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index e3b4c1c39d37..35469f3069a2 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -464,23 +464,13 @@ static void ide_tape_kfree_buffer(idetape_tape_t *tape) static int idetape_end_request(ide_drive_t *drive, int uptodate, int nr_sects) { struct request *rq = drive->hwif->rq; - int error; debug_log(DBG_PROCS, "Enter %s\n", __func__); - switch (uptodate) { - case 0: error = IDE_DRV_ERROR_GENERAL; break; - case 1: error = 0; break; - default: error = uptodate; - } - rq->errors = error; - if (error) - drive->failed_pc = NULL; + rq->errors = uptodate ? 0 : IDE_DRV_ERROR_GENERAL; - if (!blk_special_request(rq)) { - ide_end_request(drive, uptodate, nr_sects); - return 0; - } + if (uptodate == 0) + drive->failed_pc = NULL; ide_complete_rq(drive, 0); @@ -493,7 +483,9 @@ static void ide_tape_callback(ide_drive_t *drive, int dsc) { idetape_tape_t *tape = drive->driver_data; struct ide_atapi_pc *pc = drive->pc; + struct request *rq = drive->hwif->rq; int uptodate = pc->error ? 0 : 1; + int err = uptodate ? 0 : IDE_DRV_ERROR_GENERAL; debug_log(DBG_PROCS, "Enter %s\n", __func__); @@ -510,7 +502,6 @@ static void ide_tape_callback(ide_drive_t *drive, int dsc) printk(KERN_ERR "ide-tape: Error in REQUEST SENSE " "itself - Aborting request!\n"); } else if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) { - struct request *rq = drive->hwif->rq; int blocks = pc->xferred / tape->blk_size; tape->avg_size += blocks * tape->blk_size; @@ -525,8 +516,10 @@ static void ide_tape_callback(ide_drive_t *drive, int dsc) tape->first_frame += blocks; rq->current_nr_sectors -= blocks; - if (pc->error) - uptodate = pc->error; + if (pc->error) { + uptodate = 0; + err = pc->error; + } } else if (pc->c[0] == READ_POSITION && uptodate) { u8 *readpos = pc->buf; @@ -540,6 +533,7 @@ static void ide_tape_callback(ide_drive_t *drive, int dsc) "to the tape\n"); clear_bit(IDE_AFLAG_ADDRESS_VALID, &drive->atapi_flags); uptodate = 0; + err = IDE_DRV_ERROR_GENERAL; } else { debug_log(DBG_SENSE, "Block Location - %u\n", be32_to_cpup((__be32 *)&readpos[4])); @@ -550,7 +544,15 @@ static void ide_tape_callback(ide_drive_t *drive, int dsc) } } - idetape_end_request(drive, uptodate, 0); + rq->errors = err; + + if (uptodate == 0) + drive->failed_pc = NULL; + + if (blk_special_request(rq)) + ide_complete_rq(drive, 0); + else + ide_end_request(drive, uptodate, 0); } /* @@ -794,7 +796,9 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive, if (rq != postponed_rq) { printk(KERN_ERR "ide-tape: ide-tape.c bug - " "Two DSC requests were queued\n"); - idetape_end_request(drive, 0, 0); + rq->errors = IDE_DRV_ERROR_GENERAL; + drive->failed_pc = NULL; + ide_complete_rq(drive, 0); return ide_stopped; }