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authorJan Kara <jack@suse.cz>2017-04-12 12:24:45 +0200
committerJens Axboe <axboe@fb.com>2017-04-20 12:09:55 -0600
commit0db10944a76ba09f37d43b99d0fe085a18307f22 (patch)
tree0dc08217910a281c96b57f92ef0a18cc2cdd8163 /fs/nfs/write.c
parenta0349ec00f3cb8a9401d065e5db3a5d738e94a89 (diff)
nfs: Convert to separately allocated bdi
Allocate struct backing_dev_info separately instead of embedding it inside the superblock. This unifies handling of bdi among users. CC: Anna Schumaker <anna.schumaker@netapp.com> CC: linux-nfs@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/nfs/write.c')
-rw-r--r--fs/nfs/write.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index abb2c8a3be42..cc341fc7fd44 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -263,16 +263,15 @@ int nfs_congestion_kb;
static void nfs_set_page_writeback(struct page *page)
{
- struct nfs_server *nfss = NFS_SERVER(page_file_mapping(page)->host);
+ struct inode *inode = page_file_mapping(page)->host;
+ struct nfs_server *nfss = NFS_SERVER(inode);
int ret = test_set_page_writeback(page);
WARN_ON_ONCE(ret != 0);
if (atomic_long_inc_return(&nfss->writeback) >
- NFS_CONGESTION_ON_THRESH) {
- set_bdi_congested(&nfss->backing_dev_info,
- BLK_RW_ASYNC);
- }
+ NFS_CONGESTION_ON_THRESH)
+ set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
}
static void nfs_end_page_writeback(struct nfs_page *req)
@@ -285,7 +284,7 @@ static void nfs_end_page_writeback(struct nfs_page *req)
end_page_writeback(req->wb_page);
if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
- clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
+ clear_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
}
@@ -1808,7 +1807,7 @@ static void nfs_commit_release_pages(struct nfs_commit_data *data)
}
nfss = NFS_SERVER(data->inode);
if (atomic_long_read(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
- clear_bdi_congested(&nfss->backing_dev_info, BLK_RW_ASYNC);
+ clear_bdi_congested(inode_to_bdi(data->inode), BLK_RW_ASYNC);
nfs_init_cinfo(&cinfo, data->inode, data->dreq);
nfs_commit_end(cinfo.mds);