diff options
Diffstat (limited to 'drivers/block')
-rw-r--r-- | drivers/block/aoe/aoecmd.c | 3 | ||||
-rw-r--r-- | drivers/block/loop.c | 9 | ||||
-rw-r--r-- | drivers/block/xen-blkback/blkback.c | 7 |
3 files changed, 11 insertions, 8 deletions
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 887f68f..db30542 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -30,8 +30,9 @@ new_skb(ulong len) { struct sk_buff *skb; - skb = alloc_skb(len, GFP_ATOMIC); + skb = alloc_skb(len + MAX_HEADER, GFP_ATOMIC); if (skb) { + skb_reserve(skb, MAX_HEADER); skb_reset_mac_header(skb); skb_reset_network_header(skb); skb->protocol = __constant_htons(ETH_P_AOE); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 258cd0a..38f8da9 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -928,6 +928,11 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, wake_up_process(lo->lo_thread); if (max_part > 0) ioctl_by_bdev(bdev, BLKRRPART, 0); + + /* Grab the block_device to prevent its destruction after we + * put /dev/loopXX inode. Later in loop_clr_fd() we bdput(bdev). + */ + bdgrab(bdev); return 0; out_clr: @@ -1024,8 +1029,10 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev) memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE); memset(lo->lo_crypt_name, 0, LO_NAME_SIZE); memset(lo->lo_file_name, 0, LO_NAME_SIZE); - if (bdev) + if (bdev) { + bdput(bdev); invalidate_bdev(bdev); + } set_capacity(lo->lo_disk, 0); loop_sysfs_exit(lo); if (bdev) { diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 54139d0..92bdc40 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -650,13 +650,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, bio->bi_end_io = end_block_io_op; } - /* - * We set it one so that the last submit_bio does not have to call - * atomic_inc. - */ atomic_set(&pending_req->pendcnt, nbio); - - /* Get a reference count for the disk queue and start sending I/O */ blk_start_plug(&plug); for (i = 0; i < nbio; i++) @@ -684,6 +678,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, fail_put_bio: for (i = 0; i < nbio; i++) bio_put(biolist[i]); + atomic_set(&pending_req->pendcnt, 1); __end_block_io_op(pending_req, -EINVAL); msleep(1); /* back off a bit */ return -EIO; |