quorum: modify vote rules for flush operation
commit924e8a2bbc7cc62b3996efe9a2a460f541c04520
authorChanglong Xie <xiecl.fnst@cn.fujitsu.com>
Fri, 26 Feb 2016 01:39:02 +0000 (26 09:39 +0800)
committerKevin Wolf <kwolf@redhat.com>
Mon, 14 Mar 2016 15:46:43 +0000 (14 16:46 +0100)
treee8ffc54bf34296b6a80b8a72c17a17625ae8782e
parent0ae053b7e1b74a551b89a84c706e0cb9a163d92c
quorum: modify vote rules for flush operation

Keep flush interface the same logic as quorum read/write, Otherwise in
following scenario, we'll encounter unexpected errors.

Quorum has two children(A, B). A do flush sucessfully, but B flush failed.
This cause the filesystem of guest become read-only with following errors:

end_request: I/O error, dev vda, sector 11159960
Aborting journal on device vda3-8
EXT4-fs error (device vda3): ext4_journal_start_sb:327: Detected abort journal
EXT4-fs (vda3): Remounting filesystem read-only

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block/quorum.c