Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754553AbYCAJHl (ORCPT ); Sat, 1 Mar 2008 04:07:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753108AbYCAI71 (ORCPT ); Sat, 1 Mar 2008 03:59:27 -0500 Received: from mu-out-0910.google.com ([209.85.134.187]:55344 "EHLO mu-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756210AbYCAI7V (ORCPT ); Sat, 1 Mar 2008 03:59:21 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=to:cc:subject:date:message-id:x-mailer:in-reply-to:references:from; b=HrMgFB0CbsbdGkJoGRaLjLH//dNNTRAKtWaSUQFsoqyq8CXj40Pwp6+peF3CwIfSvNVlN9R8ZDHEpBTHyknsSJJaYfkC8VreExFT9OcbL3EQvinEuo/wREMbzxwZPjiEd9R04cXFCDJR+xtHFtzWq9c9tsRIvXADh/DMLI2XTuk= To: Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, Borislav Petkov Subject: [PATCH 05/24] ide-tape: cleanup pipeline-specific code from idetape_init_read Date: Sat, 1 Mar 2008 09:58:29 +0100 Message-Id: <1204361928-30229-6-git-send-email-petkovbb@gmail.com> X-Mailer: git-send-email 1.5.4.1 In-Reply-To: <1204361928-30229-1-git-send-email-petkovbb@gmail.com> References: <1204361928-30229-1-git-send-email-petkovbb@gmail.com> From: Borislav Petkov Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4303 Lines: 138 Also, remove idetape_kmalloc_stage() and idetape_add_stage_tail() since they've become unused, as a result. Signed-off-by: Borislav Petkov --- drivers/ide/ide-tape.c | 73 +++-------------------------------------------- 1 files changed, 5 insertions(+), 68 deletions(-) diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 4a064c1..6bca29b 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1684,21 +1684,6 @@ abort: return NULL; } -static idetape_stage_t *idetape_kmalloc_stage(idetape_tape_t *tape) -{ - idetape_stage_t *cache_stage = tape->cache_stage; - - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - if (tape->nr_stages >= tape->max_stages) - return NULL; - if (cache_stage != NULL) { - tape->cache_stage = NULL; - return cache_stage; - } - return __idetape_kmalloc_stage(tape, 0, 0); -} - static int idetape_copy_stage_from_user(idetape_tape_t *tape, const char __user *buf, int n) { @@ -1776,30 +1761,8 @@ static void idetape_init_merge_stage(idetape_tape_t *tape) } } -/* Add a new stage at the end of the pipeline. */ -static void idetape_add_stage_tail(ide_drive_t *drive, idetape_stage_t *stage) -{ - idetape_tape_t *tape = drive->driver_data; - unsigned long flags; - - debug_log(DBG_PROCS, "Enter %s\n", __func__); - - spin_lock_irqsave(&tape->lock, flags); - stage->next = NULL; - if (tape->last_stage != NULL) - tape->last_stage->next = stage; - else - tape->first_stage = stage; - tape->next_stage = stage; - tape->last_stage = stage; - if (tape->next_stage == NULL) - tape->next_stage = tape->last_stage; - tape->nr_stages++; - tape->nr_pending_stages++; - spin_unlock_irqrestore(&tape->lock, flags); -} - -/* Install a completion in a pending request and sleep until it is serviced. The +/* + * Install a completion in a pending request and sleep until it is serviced. The * caller should ensure that the request will not be serviced before we install * the completion (usually by disabling interrupts). */ @@ -2318,17 +2281,12 @@ static void idetape_restart_speed_control(ide_drive_t *drive) static int idetape_init_read(ide_drive_t *drive, int max_stages) { idetape_tape_t *tape = drive->driver_data; - idetape_stage_t *new_stage; struct request rq; int bytes_read; u16 blocks = *(u16 *)&tape->caps[12]; /* Initialize read operation */ if (tape->chrdev_dir != IDETAPE_DIR_READ) { - if (tape->chrdev_dir == IDETAPE_DIR_WRITE) { - idetape_empty_write_pipeline(drive); - idetape_flush_tape_buffers(drive); - } if (tape->merge_stage || tape->merge_stage_size) { printk(KERN_ERR "ide-tape: merge_stage_size should be" " 0 now\n"); @@ -2347,8 +2305,8 @@ static int idetape_init_read(ide_drive_t *drive, int max_stages) */ if (drive->dsc_overlap) { bytes_read = idetape_queue_rw_tail(drive, - REQ_IDETAPE_READ, 0, - tape->merge_stage->bh); + REQ_IDETAPE_READ, 0, + tape->merge_stage->bh); if (bytes_read < 0) { __idetape_kfree_stage(tape->merge_stage); tape->merge_stage = NULL; @@ -2357,32 +2315,11 @@ static int idetape_init_read(ide_drive_t *drive, int max_stages) } } } - if (tape->restart_speed_control_req) - idetape_restart_speed_control(drive); idetape_init_rq(&rq, REQ_IDETAPE_READ); rq.sector = tape->first_frame; rq.nr_sectors = blocks; rq.current_nr_sectors = blocks; - if (!test_bit(IDETAPE_FLAG_PIPELINE_ERR, &tape->flags) && - tape->nr_stages < max_stages) { - new_stage = idetape_kmalloc_stage(tape); - while (new_stage != NULL) { - new_stage->rq = rq; - idetape_add_stage_tail(drive, new_stage); - if (tape->nr_stages >= max_stages) - break; - new_stage = idetape_kmalloc_stage(tape); - } - } - if (!test_bit(IDETAPE_FLAG_PIPELINE_ACTIVE, &tape->flags)) { - if (tape->nr_pending_stages >= 3 * max_stages / 4) { - tape->measure_insert_time = 1; - tape->insert_time = jiffies; - tape->insert_size = 0; - tape->insert_speed = 0; - idetape_plug_pipeline(drive); - } - } + return 0; } -- 1.5.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/