linux-next: vfs tree build warning

From: Stephen Rothwell
Date: Sun Jan 17 2010 - 21:11:52 EST

Hi Al,

Today's linux-next build (x86_64_allmodconfig) produced this warning:

fs/ceph/super.c:216: warning: initialization from incompatible pointer type

Introduced by commit bc39e28236344af617473df80abb7de43176511e ("pass
writeback_control to ->write_inode") from the vfs tree interacting with
commit 16725b9d2a2e3d0fd2b0034482e2eb0a2d78050f ("ceph: super.c") from
the ceph tree.

This will need a fixup patch (see below) which I can carry in the
linux-next tree. There may, of course, be a better fix (which I can
carry if someone sends it to me).
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Mon, 18 Jan 2010 11:53:08 +1100
Subject: [PATCH] ceph: update for write_inode API change

Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
fs/ceph/caps.c | 4 +++-
fs/ceph/super.h | 3 ++-
2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 9b9ce14..b2a6b9a 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -5,6 +5,7 @@
#include <linux/sched.h>
#include <linux/vmalloc.h>
#include <linux/wait.h>
+#include <linux/writeback.h>

#include "super.h"
#include "decode.h"
@@ -1745,12 +1746,13 @@ int ceph_fsync(struct file *file, struct dentry *dentry, int datasync)
* get by with fewer MDS messages if we wait for data writeback to
* complete first.
-int ceph_write_inode(struct inode *inode, int wait)
+int ceph_write_inode(struct inode *inode, struct writeback_control *wbc)
struct ceph_inode_info *ci = ceph_inode(inode);
unsigned flush_tid;
int err = 0;
int dirty;
+ int wait = wbc->sync_mode == WB_SYNC_ALL;

dout("write_inode %p wait=%d\n", inode, wait);
if (wait) {
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index de5e324..25b0988 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -11,6 +11,7 @@
#include <linux/mempool.h>
#include <linux/pagemap.h>
#include <linux/wait.h>
+#include <linux/writeback.h>

#include "types.h"
#include "messenger.h"
@@ -806,7 +807,7 @@ static inline void ceph_remove_cap(struct ceph_cap *cap)

extern void ceph_queue_caps_release(struct inode *inode);
-extern int ceph_write_inode(struct inode *inode, int unused);
+extern int ceph_write_inode(struct inode *inode, struct writeback_control *wbc);
extern int ceph_fsync(struct file *file, struct dentry *dentry, int datasync);
extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at