writeback: introduce wbc.for_background
commitb17621fed6aa039387e35f9b4d34d98f213e5673
authorWu Fengguang <fengguang.wu@gmail.com>
Thu, 3 Dec 2009 12:54:25 +0000 (3 13:54 +0100)
committerJens Axboe <jens.axboe@oracle.com>
Thu, 3 Dec 2009 12:54:25 +0000 (3 13:54 +0100)
treebc755d1aa204518600a6d82dd51d970c685dc68c
parent951c30d135390a108f102b0f6e3cfa6241f2a1aa
writeback: introduce wbc.for_background

It will lower the flush priority for NFS, and maybe more in future.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
fs/fs-writeback.c
fs/nfs/write.c
include/linux/writeback.h