else
__submit_bio_noacct(bio);
}
- case REQ_OP_WRITE_SAME:
- if (!q->limits.max_write_same_sectors)
- goto not_supported;
- break;
+
+/**
+ * submit_bio_noacct - re-submit a bio to the block device layer for I/O
+ * @bio: The bio describing the location in memory and on the device.
+ *
+ * This is a version of submit_bio() that shall only be used for I/O that is
+ * resubmitted to lower level drivers by stacking block drivers. All file
+ * systems and other upper level users of the block layer should use
+ * submit_bio() instead.
+ */
+void submit_bio_noacct(struct bio *bio)
+{
+ struct block_device *bdev = bio->bi_bdev;
+ struct request_queue *q = bdev_get_queue(bdev);
+ blk_status_t status = BLK_STS_IOERR;
+ struct blk_plug *plug;
+
+ might_sleep();
+
+ plug = blk_mq_plug(q, bio);
+ if (plug && plug->nowait)
+ bio->bi_opf |= REQ_NOWAIT;
+
+ /*
+ * For a REQ_NOWAIT based request, return -EOPNOTSUPP
+ * if queue does not support NOWAIT.
+ */
+ if ((bio->bi_opf & REQ_NOWAIT) && !blk_queue_nowait(q))
+ goto not_supported;
+
+ if (should_fail_bio(bio))
+ goto end_io;
+ if (unlikely(bio_check_ro(bio)))
+ goto end_io;
+ if (!bio_flagged(bio, BIO_REMAPPED)) {
+ if (unlikely(bio_check_eod(bio)))
+ goto end_io;
+ if (bdev->bd_partno && unlikely(blk_partition_remap(bio)))
+ goto end_io;
+ }
+
+ /*
+ * Filter flush bio's early so that bio based drivers without flush
+ * support don't have to worry about them.
+ */
+ if (op_is_flush(bio->bi_opf) &&
+ !test_bit(QUEUE_FLAG_WC, &q->queue_flags)) {
+ bio->bi_opf &= ~(REQ_PREFLUSH | REQ_FUA);
+ if (!bio_sectors(bio)) {
+ status = BLK_STS_OK;
+ goto end_io;
+ }
+ }
+
+ if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
+ bio_clear_polled(bio);
+
+ switch (bio_op(bio)) {
+ case REQ_OP_DISCARD:
+ if (!blk_queue_discard(q))
+ goto not_supported;
+ break;
+ case REQ_OP_SECURE_ERASE:
+ if (!blk_queue_secure_erase(q))
+ goto not_supported;
+ break;
+ case REQ_OP_ZONE_APPEND:
+ status = blk_check_zone_append(q, bio);
+ if (status != BLK_STS_OK)
+ goto end_io;
+ break;
+ case REQ_OP_ZONE_RESET:
+ case REQ_OP_ZONE_OPEN:
+ case REQ_OP_ZONE_CLOSE:
+ case REQ_OP_ZONE_FINISH:
+ if (!blk_queue_is_zoned(q))
+ goto not_supported;
+ break;
+ case REQ_OP_ZONE_RESET_ALL:
+ if (!blk_queue_is_zoned(q) || !blk_queue_zone_resetall(q))
+ goto not_supported;
+ break;
+ case REQ_OP_WRITE_ZEROES:
+ if (!q->limits.max_write_zeroes_sectors)
+ goto not_supported;
+ break;
+ default:
+ break;
+ }
+
+ if (blk_throtl_bio(bio))
+ return;
+
+ blk_cgroup_bio_start(bio);
+ blkcg_bio_issue_init(bio);
+
+ if (!bio_flagged(bio, BIO_TRACE_COMPLETION)) {
+ trace_block_bio_queue(bio);
+ /* Now that enqueuing has been traced, we need to trace
+ * completion as well.
+ */
+ bio_set_flag(bio, BIO_TRACE_COMPLETION);
+ }
+ submit_bio_noacct_nocheck(bio);
+ return;
+
+not_supported:
+ status = BLK_STS_NOTSUPP;
+end_io:
+ bio->bi_status = status;
+ bio_endio(bio);
+}
EXPORT_SYMBOL(submit_bio_noacct);
/**
bio_for_each_segment(bvec, bio, iter) {
u8 *src;
- src = kmap_atomic(bvec.bv_page);
- crypto_shash_update(desc, src + bvec.bv_offset, bvec.bv_len);
- kunmap_atomic(src);
+ src = bvec_kmap_local(&bvec);
+ crypto_shash_update(desc, src, bvec.bv_len);
+ kunmap_local(src);
-
- /* REQ_OP_WRITE_SAME has only one segment,
- * checksum the payload only once. */
- if (bio_op(bio) == REQ_OP_WRITE_SAME)
- break;
}
crypto_shash_final(desc, digest);
shash_desc_zero(desc);
}
rnbd_clt_info(dev,
- "map_device: Device mapped as %s (nsectors: %zu, logical_block_size: %d, physical_block_size: %d, max_write_same_sectors: %d, max_discard_sectors: %d, discard_granularity: %d, discard_alignment: %d, secure_discard: %d, max_segments: %d, max_hw_sectors: %d, wc: %d, fua: %d)\n",
- "map_device: Device mapped as %s (nsectors: %zu, logical_block_size: %d, physical_block_size: %d, max_discard_sectors: %d, discard_granularity: %d, discard_alignment: %d, secure_discard: %d, max_segments: %d, max_hw_sectors: %d, rotational: %d, wc: %d, fua: %d)\n",
++ "map_device: Device mapped as %s (nsectors: %zu, logical_block_size: %d, physical_block_size: %d, max_discard_sectors: %d, discard_granularity: %d, discard_alignment: %d, secure_discard: %d, max_segments: %d, max_hw_sectors: %d, wc: %d, fua: %d)\n",
dev->gd->disk_name, dev->nsectors,
dev->logical_block_size, dev->physical_block_size,
- dev->max_write_same_sectors, dev->max_discard_sectors,
+ dev->max_discard_sectors,
dev->discard_granularity, dev->discard_alignment,
dev->secure_discard, dev->max_segments,
- dev->max_hw_sectors, dev->rotational, dev->wc, dev->fua);
+ dev->max_hw_sectors, dev->wc, dev->fua);
mutex_unlock(&dev->lock);
rnbd_clt_put_sess(sess);
}
/* Break link with the SCSI command */
- CMD_SP(sc) = NULL;
- CMD_FLAGS(sc) |= FNIC_IO_DONE;
+ fnic_priv(sc)->io_req = NULL;
+ fnic_priv(sc)->flags |= FNIC_IO_DONE;
- spin_unlock_irqrestore(io_lock, flags);
-
if (hdr_status != FCPIO_SUCCESS) {
atomic64_inc(&fnic_stats->io_stats.io_failures);
shost_printk(KERN_ERR, fnic->lport->host, "hdr status = %s\n",
bool send_ack;
bool process_evt;
u32 evt_ctx;
+ bool pending_at_sml;
+ bool discard;
struct kref ref_count;
- char event_data[0] __aligned(4);
+ char event_data[] __aligned(4);
};
static DEFINE_IDA(sd_index_ida);
-/* This semaphore is used to mediate the 0->1 reference get in the
- * face of object destruction (i.e. we can't allow a get on an
- * object after last put) */
-static DEFINE_MUTEX(sd_ref_mutex);
-
static struct kmem_cache *sd_cdb_cache;
- static mempool_t *sd_cdb_pool;
static mempool_t *sd_page_pool;
static struct lock_class_key sd_bio_compl_lkclass;
#include <linux/timer.h>
#include <linux/scatterlist.h>
#include <scsi/scsi_device.h>
- #include <scsi/scsi_request.h>
struct Scsi_Host;
-struct scsi_driver;
/*
* MAX_COMMAND_SIZE is:
return cmd + 1;
}
-/* make sure not to use it with passthrough commands */
-static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
-{
- struct request *rq = scsi_cmd_to_rq(cmd);
-
- return *(struct scsi_driver **)rq->q->disk->private_data;
-}
-
void scsi_done(struct scsi_cmnd *cmd);
+ void scsi_done_direct(struct scsi_cmnd *cmd);
extern void scsi_finish_command(struct scsi_cmnd *cmd);
projects / linux-2.6-microblaze.git / commitdiff