Merge branch 'locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[sfrench/cifs-2.6.git] / drivers / md / dm-io.c

diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index f14813be4eff88ccdc082b62336690e20b0342cb..e73aabd61cd78abdbc63996704c177e6aea399d1 100644 (file)
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -292,6 +292,8 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where,
                                             (PAGE_SIZE >> SECTOR_SHIFT));
                num_bvecs = 1 + min_t(int, bio_get_nr_vecs(where->bdev),
                                      num_bvecs);
+               if (unlikely(num_bvecs > BIO_MAX_PAGES))
+                       num_bvecs = BIO_MAX_PAGES;
                bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, io->client->bios);
                bio->bi_sector = where->sector + (where->count - remaining);
                bio->bi_bdev = where->bdev;
@@ -368,16 +370,13 @@ static int sync_io(struct dm_io_client *client, unsigned int num_regions,
        while (1) {
                set_current_state(TASK_UNINTERRUPTIBLE);
 
-               if (!atomic_read(&io.count) || signal_pending(current))
+               if (!atomic_read(&io.count))
                        break;
 
                io_schedule();
        }
        set_current_state(TASK_RUNNING);
 
-       if (atomic_read(&io.count))
-               return -EINTR;
-
        if (error_bits)
                *error_bits = io.error_bits;