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

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

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 561e2f16ba3e3ff3b0be72b12b4a052b86082d2a..1fd3f33c330abe930fbd03de1deb5968e32fd7b5 100644 (file)
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -208,7 +208,6 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
                                         int is_metadata, int have_csum,
                                         const u8 *csum, u64 generation,
                                         u16 csum_size);
-static void scrub_complete_bio_end_io(struct bio *bio, int err);
 static int scrub_repair_block_from_good_copy(struct scrub_block *sblock_bad,
                                             struct scrub_block *sblock_good,
                                             int force_write);
@@ -1294,7 +1293,6 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
        for (page_num = 0; page_num < sblock->page_count; page_num++) {
                struct bio *bio;
                struct scrub_page *page = sblock->pagev[page_num];
-               DECLARE_COMPLETION_ONSTACK(complete);
 
                if (page->dev->bdev == NULL) {
                        page->io_error = 1;
@@ -1311,18 +1309,11 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
                }
                bio->bi_bdev = page->dev->bdev;
                bio->bi_sector = page->physical >> 9;
-               bio->bi_end_io = scrub_complete_bio_end_io;
-               bio->bi_private = &complete;
 
                bio_add_page(bio, page->page, PAGE_SIZE, 0);
-               btrfsic_submit_bio(READ, bio);
-
-               /* this will also unplug the queue */
-               wait_for_completion(&complete);
-
-               page->io_error = !test_bit(BIO_UPTODATE, &bio->bi_flags);
-               if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+               if (btrfsic_submit_bio_wait(READ, bio))
                        sblock->no_io_error_seen = 0;
+
                bio_put(bio);
        }
 
@@ -1391,11 +1382,6 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
                sblock->checksum_error = 1;
 }
 
-static void scrub_complete_bio_end_io(struct bio *bio, int err)
-{
-       complete((struct completion *)bio->bi_private);
-}
-
 static int scrub_repair_block_from_good_copy(struct scrub_block *sblock_bad,
                                             struct scrub_block *sblock_good,
                                             int force_write)
@@ -1430,7 +1416,6 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
            sblock_bad->checksum_error || page_bad->io_error) {
                struct bio *bio;
                int ret;
-               DECLARE_COMPLETION_ONSTACK(complete);
 
                if (!page_bad->dev->bdev) {
                        printk_ratelimited(KERN_WARNING
@@ -1443,19 +1428,14 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
                        return -EIO;
                bio->bi_bdev = page_bad->dev->bdev;
                bio->bi_sector = page_bad->physical >> 9;
-               bio->bi_end_io = scrub_complete_bio_end_io;
-               bio->bi_private = &complete;
 
                ret = bio_add_page(bio, page_good->page, PAGE_SIZE, 0);
                if (PAGE_SIZE != ret) {
                        bio_put(bio);
                        return -EIO;
                }
-               btrfsic_submit_bio(WRITE, bio);
 
-               /* this will also unplug the queue */
-               wait_for_completion(&complete);
-               if (!bio_flagged(bio, BIO_UPTODATE)) {
+               if (btrfsic_submit_bio_wait(WRITE, bio)) {
                        btrfs_dev_stat_inc_and_print(page_bad->dev,
                                BTRFS_DEV_STAT_WRITE_ERRS);
                        btrfs_dev_replace_stats_inc(
@@ -3375,7 +3355,6 @@ static int write_page_nocow(struct scrub_ctx *sctx,
        struct bio *bio;
        struct btrfs_device *dev;
        int ret;
-       DECLARE_COMPLETION_ONSTACK(compl);
 
        dev = sctx->wr_ctx.tgtdev;
        if (!dev)
@@ -3392,8 +3371,6 @@ static int write_page_nocow(struct scrub_ctx *sctx,
                spin_unlock(&sctx->stat_lock);
                return -ENOMEM;
        }
-       bio->bi_private = &compl;
-       bio->bi_end_io = scrub_complete_bio_end_io;
        bio->bi_size = 0;
        bio->bi_sector = physical_for_dev_replace >> 9;
        bio->bi_bdev = dev->bdev;
@@ -3404,10 +3381,8 @@ leave_with_eio:
                btrfs_dev_stat_inc_and_print(dev, BTRFS_DEV_STAT_WRITE_ERRS);
                return -EIO;
        }
-       btrfsic_submit_bio(WRITE_SYNC, bio);
-       wait_for_completion(&compl);
 
-       if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+       if (btrfsic_submit_bio_wait(WRITE_SYNC, bio))
                goto leave_with_eio;
 
        bio_put(bio);