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| author | Wu Fengguang <fengguang.wu@gmail.com> | 2009-12-03 13:54:25 +0100 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-12-03 13:54:25 +0100 |
| commit | b17621fed6aa039387e35f9b4d34d98f213e5673 (patch) | |
| tree | bc755d1aa204518600a6d82dd51d970c685dc68c /fs | |
| parent | 951c30d135390a108f102b0f6e3cfa6241f2a1aa (diff) | |
| download | op-kernel-dev-b17621fed6aa039387e35f9b4d34d98f213e5673.zip op-kernel-dev-b17621fed6aa039387e35f9b4d34d98f213e5673.tar.gz | |
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')
| -rw-r--r-- | fs/fs-writeback.c | 1 | ||||
| -rw-r--r-- | fs/nfs/write.c | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 0306c8e..0793961 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -738,6 +738,7 @@ static long wb_writeback(struct bdi_writeback *wb, .sync_mode = args->sync_mode, .older_than_this = NULL, .for_kupdate = args->for_kupdate, + .for_background = args->for_background, .range_cyclic = args->range_cyclic, }; unsigned long oldest_jif; diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 53eb26c..c84b5cc 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; } |
