Merge branch 'clockevents/fixes' of git://git.linaro.org/people/daniel.lezcano/linux...

[linux-drm-fsl-dcu.git] / fs / btrfs / check-integrity.c

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index b50764bef1410c2750b17d943ae3597899b3ee9e..131d82800b3af45778cb8651f5c559bd57cec437 100644 (file)
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -333,7 +333,6 @@ static void btrfsic_release_block_ctx(struct btrfsic_block_data_ctx *block_ctx);
 static int btrfsic_read_block(struct btrfsic_state *state,
                              struct btrfsic_block_data_ctx *block_ctx);
 static void btrfsic_dump_database(struct btrfsic_state *state);
-static void btrfsic_complete_bio_end_io(struct bio *bio, int err);
 static int btrfsic_test_for_metadata(struct btrfsic_state *state,
                                     char **datav, unsigned int num_pages);
 static void btrfsic_process_written_block(struct btrfsic_dev_state *dev_state,
@@ -1687,7 +1686,6 @@ static int btrfsic_read_block(struct btrfsic_state *state,
        for (i = 0; i < num_pages;) {
                struct bio *bio;
                unsigned int j;
-               DECLARE_COMPLETION_ONSTACK(complete);
 
                bio = btrfs_io_bio_alloc(GFP_NOFS, num_pages - i);
                if (!bio) {
@@ -1698,8 +1696,6 @@ static int btrfsic_read_block(struct btrfsic_state *state,
                }
                bio->bi_bdev = block_ctx->dev->bdev;
                bio->bi_sector = dev_bytenr >> 9;
-               bio->bi_end_io = btrfsic_complete_bio_end_io;
-               bio->bi_private = &complete;
 
                for (j = i; j < num_pages; j++) {
                        ret = bio_add_page(bio, block_ctx->pagev[j],
@@ -1712,12 +1708,7 @@ static int btrfsic_read_block(struct btrfsic_state *state,
                               "btrfsic: error, failed to add a single page!\n");
                        return -1;
                }
-               submit_bio(READ, bio);
-
-               /* this will also unplug the queue */
-               wait_for_completion(&complete);
-
-               if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) {
+               if (submit_bio_wait(READ, bio)) {
                        printk(KERN_INFO
                               "btrfsic: read error at logical %llu dev %s!\n",
                               block_ctx->start, block_ctx->dev->name);
@@ -1740,11 +1731,6 @@ static int btrfsic_read_block(struct btrfsic_state *state,
        return block_ctx->len;
 }
 
-static void btrfsic_complete_bio_end_io(struct bio *bio, int err)
-{
-       complete((struct completion *)bio->bi_private);
-}
-
 static void btrfsic_dump_database(struct btrfsic_state *state)
 {
        struct list_head *elem_all;
@@ -3008,14 +2994,12 @@ int btrfsic_submit_bh(int rw, struct buffer_head *bh)
        return submit_bh(rw, bh);
 }
 
-void btrfsic_submit_bio(int rw, struct bio *bio)
+static void __btrfsic_submit_bio(int rw, struct bio *bio)
 {
        struct btrfsic_dev_state *dev_state;
 
-       if (!btrfsic_is_initialized) {
-               submit_bio(rw, bio);
+       if (!btrfsic_is_initialized)
                return;
-       }
 
        mutex_lock(&btrfsic_mutex);
        /* since btrfsic_submit_bio() is also called before
@@ -3106,10 +3090,20 @@ void btrfsic_submit_bio(int rw, struct bio *bio)
        }
 leave:
        mutex_unlock(&btrfsic_mutex);
+}
 
+void btrfsic_submit_bio(int rw, struct bio *bio)
+{
+       __btrfsic_submit_bio(rw, bio);
        submit_bio(rw, bio);
 }
 
+int btrfsic_submit_bio_wait(int rw, struct bio *bio)
+{
+       __btrfsic_submit_bio(rw, bio);
+       return submit_bio_wait(rw, bio);
+}
+
 int btrfsic_mount(struct btrfs_root *root,
                  struct btrfs_fs_devices *fs_devices,
                  int including_extent_data, u32 print_mask)