Hi Greg,
I noticed this patch changed the CEPH_IOCTL_MAGIC to 0x98, and is also synchronized with the user space Ceph tree, but the Ceph client that ships with Ubuntu 10.10 uses 0x97. There wasn't a change made by this patch to Documentation/ioctl/ioctl-numbers.txt, so I was curious if this was an oversight, and if not, how the userspace code could be made to adapt for the kernel shipping with 10.10.
Thanks,
Noah
--- a/fs/ceph/ioctl.h
+++ b/fs/ceph/ioctl.h
@@ -4,7 +4,7 @@
#include <linux/ioctl.h>
#include <linux/types.h>
-#define CEPH_IOCTL_MAGIC 0x97
+#define CEPH_IOCTL_MAGIC 0x98
/* just use u64 to align sanely on all archs */
struct ceph_ioctl_layout {
@@ -17,6 +17,8 @@ struct ceph_ioctl_layout {
struct ceph_ioctl_layout)
#define CEPH_IOC_SET_LAYOUT _IOW(CEPH_IOCTL_MAGIC, 2, \
struct ceph_ioctl_layout)
+#define CEPH_IOC_SET_LAYOUT_POLICY _IOW(CEPH_IOCTL_MAGIC, 5, \
+ struct ceph_ioctl_layout)
/*
* Extract identity, address of the OSD and object storing a given--
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