From: Christoph Hellwig Date: Mon, 23 Apr 2012 15:35:30 +0000 (-0400) Subject: target: remove the task_lba field in struct se_task X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=72a0e5e2e2e6b577343c79013611ad5701e94482;p=linux.git target: remove the task_lba field in struct se_task Now that we don't split commands the lba field in the task is always equivalent to the one in the CDB, even in cases where we have two tasks due to a BIDI transfer. Just refer the the lba in the command instead of duplicating it in the task. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index c3e899e551a50..4343cfd681173 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -273,7 +273,7 @@ static int fd_do_readv(struct se_task *task) struct scatterlist *sg = task->task_sg; struct iovec *iov; mm_segment_t old_fs; - loff_t pos = (task->task_lba * + loff_t pos = (task->task_se_cmd->t_task_lba * se_dev->se_sub_dev->se_dev_attrib.block_size); int ret = 0, i; @@ -326,7 +326,7 @@ static int fd_do_writev(struct se_task *task) struct scatterlist *sg = task->task_sg; struct iovec *iov; mm_segment_t old_fs; - loff_t pos = (task->task_lba * + loff_t pos = (task->task_se_cmd->t_task_lba * se_dev->se_sub_dev->se_dev_attrib.block_size); int ret, i = 0; @@ -402,12 +402,13 @@ static void fd_emulate_write_fua(struct se_cmd *cmd, struct se_task *task) { struct se_device *dev = cmd->se_dev; struct fd_dev *fd_dev = dev->dev_ptr; - loff_t start = task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size; + loff_t start = task->task_se_cmd->t_task_lba * + dev->se_sub_dev->se_dev_attrib.block_size; loff_t end = start + task->task_size; int ret; pr_debug("FILEIO: FUA WRITE LBA: %llu, bytes: %u\n", - task->task_lba, task->task_size); + task->task_se_cmd->t_task_lba, task->task_size); ret = vfs_fsync_range(fd_dev->fd_file, start, end, 1); if (ret != 0) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 2ec299e8a73ed..311f43b3cffa1 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -536,13 +536,13 @@ static int iblock_do_task(struct se_task *task) * struct se_task SCSI blocksize into Linux/Block 512 units for BIO. */ if (dev->se_sub_dev->se_dev_attrib.block_size == 4096) - block_lba = (task->task_lba << 3); + block_lba = (cmd->t_task_lba << 3); else if (dev->se_sub_dev->se_dev_attrib.block_size == 2048) - block_lba = (task->task_lba << 2); + block_lba = (cmd->t_task_lba << 2); else if (dev->se_sub_dev->se_dev_attrib.block_size == 1024) - block_lba = (task->task_lba << 1); + block_lba = (cmd->t_task_lba << 1); else if (dev->se_sub_dev->se_dev_attrib.block_size == 512) - block_lba = task->task_lba; + block_lba = cmd->t_task_lba; else { pr_err("Unsupported SCSI -> BLOCK LBA conversion:" " %u\n", dev->se_sub_dev->se_dev_attrib.block_size); @@ -646,7 +646,7 @@ static void iblock_bio_done(struct bio *bio, int err) return; pr_debug("done[%p] bio: %p task_lba: %llu bio_lba: %llu err=%d\n", - task, bio, task->task_lba, + task, bio, task->task_se_cmd->t_task_lba, (unsigned long long)bio->bi_sector, err); transport_complete_task(task, !atomic_read(&ibr->ib_bio_err_cnt)); diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 35c64d1e09d9c..0bec5729d073f 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -303,7 +303,8 @@ static int rd_do_task(struct se_task *task) u32 src_len; u64 tmp; - tmp = task->task_lba * se_dev->se_sub_dev->se_dev_attrib.block_size; + tmp = task->task_se_cmd->t_task_lba * + se_dev->se_sub_dev->se_dev_attrib.block_size; rd_offset = do_div(tmp, PAGE_SIZE); rd_page = tmp; rd_size = task->task_size; @@ -318,7 +319,8 @@ static int rd_do_task(struct se_task *task) dev->rd_dev_id, task->task_data_direction == DMA_FROM_DEVICE ? "Read" : "Write", - task->task_lba, rd_size, rd_page, rd_offset); + task->task_se_cmd->t_task_lba, + rd_size, rd_page, rd_offset); src_len = PAGE_SIZE - rd_offset; sg_miter_start(&m, task->task_sg, task->task_sg_nents, diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 2b84521fa0b41..0fb3521d32d6c 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -3724,7 +3724,6 @@ transport_allocate_data_tasks(struct se_cmd *cmd, task->task_sg_nents = sgl_nents; task->task_size = cmd->data_length; - task->task_lba = cmd->t_task_lba; task->task_sectors = sectors; spin_lock_irqsave(&cmd->t_state_lock, flags); diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 8ec4e8232be47..df5a4671c82d6 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -486,7 +486,6 @@ struct se_queue_obj { }; struct se_task { - unsigned long long task_lba; u32 task_sectors; u32 task_size; struct se_cmd *task_se_cmd;