pass writeback_control to ->write_inode

This gives the filesystem more information about the writeback that
is happening.  Trond requested this for the NFS unstable write handling,
and other filesystems might benefit from this too by beeing able to
distinguish between the different callers in more detail.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2 files changed, 5 insertions, 2 deletions

diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index b2ae190a77ba..182b78cc3e62 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -22,6 +22,7 @@
 #include <linux/buffer_head.h>
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
+#include <linux/writeback.h>
 #include "jfs_incore.h"
 #include "jfs_inode.h"
 #include "jfs_filsys.h"
@@ -120,8 +121,10 @@ int jfs_commit_inode(struct inode *inode, int wait)
         return rc;
 }
 
-int jfs_write_inode(struct inode *inode, int wait)
+int jfs_write_inode(struct inode *inode, struct writeback_control *wbc)
 {
+        int wait = wbc->sync_mode == WB_SYNC_ALL;
+
         if (test_cflag(COMMIT_Nolink, inode))
                 return 0;
         /*
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 1eff7db34d63..15902b03c2a7 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -26,7 +26,7 @@ extern long jfs_ioctl(struct file *, unsigned int, unsigned long);
 extern long jfs_compat_ioctl(struct file *, unsigned int, unsigned long);
 extern struct inode *jfs_iget(struct super_block *, unsigned long);
 extern int jfs_commit_inode(struct inode *, int);
-extern int jfs_write_inode(struct inode*, int);
+extern int jfs_write_inode(struct inode *, struct writeback_control *);
 extern void jfs_delete_inode(struct inode *);
 extern void jfs_dirty_inode(struct inode *);
 extern void jfs_truncate(struct inode *);