bcm63xx_uart: Use the device name when registering an interrupt

[linux-2.6-block.git] / fs / direct-io.c

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 3ae0e0427191c7849fc70301e58792515f5f181c..cb5337d8c273a5dd58e97d9be587fb56d643e52a 100644 (file)
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -109,6 +109,8 @@ struct dio_submit {
 struct dio {
        int flags;                      /* doesn't change */
        int rw;
+       blk_qc_t bio_cookie;
+       struct block_device *bio_bdev;
        struct inode *inode;
        loff_t i_size;                  /* i_size when submitted */
        dio_iodone_t *end_io;           /* IO completion function */
@@ -361,7 +363,7 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
 
        /*
         * bio_alloc() is guaranteed to return a bio when called with
-        * __GFP_WAIT and we request a valid number of vectors.
+        * __GFP_RECLAIM and we request a valid number of vectors.
         */
        bio = bio_alloc(GFP_KERNEL, nr_vecs);
 
@@ -397,11 +399,14 @@ static inline void dio_bio_submit(struct dio *dio, struct dio_submit *sdio)
        if (dio->is_async && dio->rw == READ && dio->should_dirty)
                bio_set_pages_dirty(bio);
 
-       if (sdio->submit_io)
+       dio->bio_bdev = bio->bi_bdev;
+
+       if (sdio->submit_io) {
                sdio->submit_io(dio->rw, bio, dio->inode,
                               sdio->logical_offset_in_bio);
-       else
-               submit_bio(dio->rw, bio);
+               dio->bio_cookie = BLK_QC_T_NONE;
+       } else
+               dio->bio_cookie = submit_bio(dio->rw, bio);
 
        sdio->bio = NULL;
        sdio->boundary = 0;
@@ -440,7 +445,8 @@ static struct bio *dio_await_one(struct dio *dio)
                __set_current_state(TASK_UNINTERRUPTIBLE);
                dio->waiter = current;
                spin_unlock_irqrestore(&dio->bio_lock, flags);
-               io_schedule();
+               if (!blk_poll(bdev_get_queue(dio->bio_bdev), dio->bio_cookie))
+                       io_schedule();
                /* wake up sets us TASK_RUNNING */
                spin_lock_irqsave(&dio->bio_lock, flags);
                dio->waiter = NULL;