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| author | Jens Axboe <jens.axboe@oracle.com> | 2009-07-09 14:52:32 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@carl.(none)> | 2009-07-10 20:31:53 +0200 |
| commit | 8aa7e847d834ed937a9ad37a0f2ad5b8584c1ab0 (patch) | |
| tree | 76c8b4f1362a928d426f2201790ab5d128f57724 /fs/nfs | |
| parent | c2cc49a2f8a479dde96a599646d30b6cc9dbed78 (diff) | |
| download | blackbird-op-linux-8aa7e847d834ed937a9ad37a0f2ad5b8584c1ab0.tar.gz blackbird-op-linux-8aa7e847d834ed937a9ad37a0f2ad5b8584c1ab0.zip | |
Fix congestion_wait() sync/async vs read/write confusion
Commit 1faa16d22877f4839bd433547d770c676d1d964c accidentally broke
the bdi congestion wait queue logic, causing us to wait on congestion
for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/write.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index ce728829f79a..0a0a2ff767c3 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -202,8 +202,10 @@ static int nfs_set_page_writeback(struct page *page) struct nfs_server *nfss = NFS_SERVER(inode); if (atomic_long_inc_return(&nfss->writeback) > - NFS_CONGESTION_ON_THRESH) - set_bdi_congested(&nfss->backing_dev_info, WRITE); + NFS_CONGESTION_ON_THRESH) { + set_bdi_congested(&nfss->backing_dev_info, + BLK_RW_ASYNC); + } } return ret; } @@ -215,7 +217,7 @@ static void nfs_end_page_writeback(struct page *page) end_page_writeback(page); if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) - clear_bdi_congested(&nfss->backing_dev_info, WRITE); + clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC); } /* |
