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| author | Jens Axboe <jaxboe@fusionio.com> | 2010-10-22 10:58:33 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-10-22 10:58:33 +0200 |
| commit | 005a1d15f5a6b2bb4ada80349513effbf22b4588 (patch) | |
| tree | e9baa3b1ced078041ac98c1179eb51a18cc37569 /drivers/block | |
| parent | 4d1529043705737ba442f5a0048043718e601ce4 (diff) | |
xen-blkfront: disable barrier/flush write support
The driver doesn't handle empty flushes. Disable barrier/flush
write support until this is fixed up.
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/xen-blkfront.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index f2ffc46644df..739b4c1416ea 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1067,8 +1067,15 @@ static void blkfront_connect(struct blkfront_info *info) * If there are barriers, then we use flush. */ info->feature_flush = 0; + + /* + * The driver doesn't properly handled empty flushes, so + * lets disable barrier support for now. + */ +#if 0 if (!err && barrier) info->feature_flush = REQ_FLUSH; +#endif err = xlvbd_alloc_gendisk(sectors, info, binfo, sector_size); if (err) { |