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author | Ingo Molnar <mingo@elte.hu> | 2009-02-19 09:00:35 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-02-19 09:00:35 +0100 |
commit | 72c26c9a26ea7f2f3d14f162c2ebb07805f724ea (patch) | |
tree | bf1b4bc0b69f96c79474f9edb9cf0e811c95f2dc /block | |
parent | 37bd824a35a60abc73e5fa8816bd5f50c913d69b (diff) | |
parent | ba95fd47d177d46743ad94055908d22840370e06 (diff) | |
download | kernel_samsung_espresso10-72c26c9a26ea7f2f3d14f162c2ebb07805f724ea.zip kernel_samsung_espresso10-72c26c9a26ea7f2f3d14f162c2ebb07805f724ea.tar.gz kernel_samsung_espresso10-72c26c9a26ea7f2f3d14f162c2ebb07805f724ea.tar.bz2 |
Merge branch 'linus' into tracing/blktrace
Conflicts:
block/blktrace.c
Semantic merge:
kernel/trace/blktrace.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'block')
-rw-r--r-- | block/blk-timeout.c | 9 | ||||
-rw-r--r-- | block/bsg.c | 17 | ||||
-rw-r--r-- | block/genhd.c | 8 |
3 files changed, 26 insertions, 8 deletions
diff --git a/block/blk-timeout.c b/block/blk-timeout.c index a095353..bbbdc4b 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -209,12 +209,19 @@ void blk_abort_queue(struct request_queue *q) { unsigned long flags; struct request *rq, *tmp; + LIST_HEAD(list); spin_lock_irqsave(q->queue_lock, flags); elv_abort_queue(q); - list_for_each_entry_safe(rq, tmp, &q->timeout_list, timeout_list) + /* + * Splice entries to local list, to avoid deadlocking if entries + * get readded to the timeout list by error handling + */ + list_splice_init(&q->timeout_list, &list); + + list_for_each_entry_safe(rq, tmp, &list, timeout_list) blk_abort_request(rq); spin_unlock_irqrestore(q->queue_lock, flags); diff --git a/block/bsg.c b/block/bsg.c index d414bb5..0ce8806 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -244,7 +244,8 @@ bsg_validate_sgv4_hdr(struct request_queue *q, struct sg_io_v4 *hdr, int *rw) * map sg_io_v4 to a request. */ static struct request * -bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm) +bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm, + u8 *sense) { struct request_queue *q = bd->queue; struct request *rq, *next_rq = NULL; @@ -306,6 +307,10 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm) if (ret) goto out; } + + rq->sense = sense; + rq->sense_len = 0; + return rq; out: if (rq->cmd != rq->__cmd) @@ -348,9 +353,6 @@ static void bsg_rq_end_io(struct request *rq, int uptodate) static void bsg_add_command(struct bsg_device *bd, struct request_queue *q, struct bsg_command *bc, struct request *rq) { - rq->sense = bc->sense; - rq->sense_len = 0; - /* * add bc command to busy queue and submit rq for io */ @@ -419,7 +421,7 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr, { int ret = 0; - dprintk("rq %p bio %p %u\n", rq, bio, rq->errors); + dprintk("rq %p bio %p 0x%x\n", rq, bio, rq->errors); /* * fill in all the output members */ @@ -635,7 +637,7 @@ static int __bsg_write(struct bsg_device *bd, const char __user *buf, /* * get a request, fill in the blanks, and add to request queue */ - rq = bsg_map_hdr(bd, &bc->hdr, has_write_perm); + rq = bsg_map_hdr(bd, &bc->hdr, has_write_perm, bc->sense); if (IS_ERR(rq)) { ret = PTR_ERR(rq); rq = NULL; @@ -922,11 +924,12 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct request *rq; struct bio *bio, *bidi_bio = NULL; struct sg_io_v4 hdr; + u8 sense[SCSI_SENSE_BUFFERSIZE]; if (copy_from_user(&hdr, uarg, sizeof(hdr))) return -EFAULT; - rq = bsg_map_hdr(bd, &hdr, file->f_mode & FMODE_WRITE); + rq = bsg_map_hdr(bd, &hdr, file->f_mode & FMODE_WRITE, sense); if (IS_ERR(rq)) return PTR_ERR(rq); diff --git a/block/genhd.c b/block/genhd.c index 397960c..e1eadcc 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1087,6 +1087,14 @@ dev_t blk_lookup_devt(const char *name, int partno) if (strcmp(dev_name(dev), name)) continue; + if (partno < disk->minors) { + /* We need to return the right devno, even + * if the partition doesn't exist yet. + */ + devt = MKDEV(MAJOR(dev->devt), + MINOR(dev->devt) + partno); + break; + } part = disk_get_part(disk, partno); if (part) { devt = part_devt(part); |