[PATCH v2 12/15] nfs: add support in nfs to handle multiple writeback contexts

[Kundan Kumar <kundan.kumar@samsung.com>]

Fetch writeback context to which an inode is affined. Use it to perform
writeback related operations.

Signed-off-by: Kundan Kumar <kundan.kumar@samsung.com>
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
---
 fs/nfs/internal.h | 3 +--
 fs/nfs/write.c    | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 953c32576778..40755ef956d3 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -843,8 +843,7 @@ static inline void nfs_folio_mark_unstable(struct folio *folio,
 		 * writeback is happening on the server now.
 		 */
 		node_stat_mod_folio(folio, NR_WRITEBACK, nr);
-		wb_stat_mod(&inode_to_bdi(inode)->wb_ctx[0]->wb,
-			    WB_WRITEBACK, nr);
+		bdi_wb_stat_mod(inode, nr);
 		__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
 	}
 }
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index dbf5de7d6a75..8cb9e643a7f8 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -919,8 +919,7 @@ static void nfs_folio_clear_commit(struct folio *folio)
 		struct inode *inode = folio->mapping->host;
 
 		node_stat_mod_folio(folio, NR_WRITEBACK, -nr);
-		wb_stat_mod(&inode_to_bdi(inode)->wb_ctx[0]->wb,
-			    WB_WRITEBACK, -nr);
+		bdi_wb_stat_mod(inode, -nr);
 	}
 }
 
-- 
2.25.1