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| author | Jonathan Brassow <jbrassow@redhat.com> | 2011-01-13 23:14:33 +0100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-01-13 23:14:33 +0100 |
| commit | ccebd4c4159462c96397ae9af9c667bb394d7b70 (patch) | |
| tree | 04554f0e7607d906c6b09f31a995fca0dd40c5b5 /drivers/md/md.c | |
| parent | md-new-param-to-calc_dev_sboffset (diff) | |
| download | linux-ccebd4c4159462c96397ae9af9c667bb394d7b70.tar.xz linux-ccebd4c4159462c96397ae9af9c667bb394d7b70.zip | |
md-new-param-to_sync_page_io
Add new parameter to 'sync_page_io'.
The new parameter allows us to distinguish between metadata and data
operations. This becomes important later when we add the ability to
use separate devices for data and metadata.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 0a0d7c2f2ff6..0bc10cc4b961 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -795,7 +795,7 @@ static void bi_complete(struct bio *bio, int error) } int sync_page_io(mdk_rdev_t *rdev, sector_t sector, int size, - struct page *page, int rw) + struct page *page, int rw, bool metadata_op) { struct bio *bio = bio_alloc_mddev(GFP_NOIO, 1, rdev->mddev); struct completion event; @@ -804,7 +804,10 @@ int sync_page_io(mdk_rdev_t *rdev, sector_t sector, int size, rw |= REQ_SYNC | REQ_UNPLUG; bio->bi_bdev = rdev->bdev; - bio->bi_sector = sector; + if (metadata_op) + bio->bi_sector = sector + rdev->sb_start; + else + bio->bi_sector = sector + rdev->data_offset; bio_add_page(bio, page, size, 0); init_completion(&event); bio->bi_private = &event; @@ -829,7 +832,7 @@ static int read_disk_sb(mdk_rdev_t * rdev, int size) return 0; - if (!sync_page_io(rdev, rdev->sb_start, size, rdev->sb_page, READ)) + if (!sync_page_io(rdev, 0, size, rdev->sb_page, READ, true)) goto fail; rdev->sb_loaded = 1; return 0; |