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authorWu Fengguang <fengguang.wu@gmail.com>2009-12-03 13:54:25 +0100
committerJens Axboe <jens.axboe@oracle.com>2009-12-03 13:54:25 +0100
commitb17621fed6aa039387e35f9b4d34d98f213e5673 (patch)
treebc755d1aa204518600a6d82dd51d970c685dc68c /fs/nfs/write.c
parent951c30d135390a108f102b0f6e3cfa6241f2a1aa (diff)
downloadblackbird-op-linux-b17621fed6aa039387e35f9b4d34d98f213e5673.tar.gz
blackbird-op-linux-b17621fed6aa039387e35f9b4d34d98f213e5673.zip
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>
Diffstat (limited to 'fs/nfs/write.c')
-rw-r--r--fs/nfs/write.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 53eb26c16b50..c84b5cc1a943 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -178,7 +178,7 @@ static int wb_priority(struct writeback_control *wbc)
{
if (wbc->for_reclaim)
return FLUSH_HIGHPRI | FLUSH_STABLE;
- if (wbc->for_kupdate)
+ if (wbc->for_kupdate || wbc->for_background)
return FLUSH_LOWPRI;
return 0;
}
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