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| author | Christoph Hellwig <hch@lst.de> | 2010-11-10 14:54:09 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-11-10 14:54:09 +0100 |
| commit | 02e031cbc843b010e72fcc05c76113c688b2860f (patch) | |
| tree | 9f68559ec3acc39bcc4ce2ff87043a094eaa2e8f /drivers/block/loop.c | |
| parent | 00e375e7e962f938f6b3c93e4cd097a5e26cc788 (diff) | |
| download | kernel_samsung_tuna-02e031cbc843b010e72fcc05c76113c688b2860f.zip kernel_samsung_tuna-02e031cbc843b010e72fcc05c76113c688b2860f.tar.gz kernel_samsung_tuna-02e031cbc843b010e72fcc05c76113c688b2860f.tar.bz2 | |
block: remove REQ_HARDBARRIER
REQ_HARDBARRIER is dead now, so remove the leftovers. What's left
at this point is:
- various checks inside the block layer.
- sanity checks in bio based drivers.
- now unused bio_empty_barrier helper.
- Xen blockfront use of BLKIF_OP_WRITE_BARRIER - it's dead for a while,
but Xen really needs to sort out it's barrier situaton.
- setting of ordered tags in uas - dead code copied from old scsi
drivers.
- scsi different retry for barriers - it's dead and should have been
removed when flushes were converted to FS requests.
- blktrace handling of barriers - removed. Someone who knows blktrace
better should add support for REQ_FLUSH and REQ_FUA, though.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/block/loop.c')
| -rw-r--r-- | drivers/block/loop.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 1e5284e..7ea0bea 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -481,12 +481,6 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio) if (bio_rw(bio) == WRITE) { struct file *file = lo->lo_backing_file; - /* REQ_HARDBARRIER is deprecated */ - if (bio->bi_rw & REQ_HARDBARRIER) { - ret = -EOPNOTSUPP; - goto out; - } - if (bio->bi_rw & REQ_FLUSH) { ret = vfs_fsync(file, 0); if (unlikely(ret && ret != -EINVAL)) { |