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(parent: 13e88e1) | patch
btrfs: check if the device is flush capable
authorAnand Jain <anand.jain@oracle.com>
Thu, 6 Apr 2017 03:22:53 +0000 (11:22 +0800)
committerDavid Sterba <dsterba@suse.com>
Tue, 18 Apr 2017 14:13:27 +0000 (16:13 +0200)
commitc2a9c7ab475bc3aaf06521a39ac65bc48c8cad4f
treef605531dbf3f58c262ddeec51239619b044696d3tree | snapshot
parent13e88e1560d6014838e2dd9f8b9cf8ec9a8d86e6commit | diff
btrfs: check if the device is flush capable

The block layer call chain from submit_bio will check if the write cache
is enabled for the given queue before submitting the flush. This will
add a code to fail fast if its not.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ updated changelog to reflect current code stat, blkdev_issue_flush is
  not used yet ]
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/disk-io.c diff | blob | history
John Crispins staging tree