linux/fs/ceph/ceph_frag.c

/*
 * Ceph 'frag' type
 */
#include <linux/module.h>
#include <linux/ceph/types.h>

int ceph_frag_compare(__u32 a, __u32 b)
{
	unsigned va = ceph_frag_value(a);
	unsigned vb = ceph_frag_value(b);
	if (va < vb)
		return -1;
	if (va > vb)
		return 1;
	va = ceph_frag_bits(a);
	vb = ceph_frag_bits(b);
	if (va < vb)
		return -1;
	if (va > vb)
		return 1;
	return 0;
}
ceph: client types We first define constants, types, and prototypes for the kernel client proper. A few subsystems are defined separately later: the MDS, OSD, and monitor clients, and the messaging layer. Signed-off-by: Sage Weil <sage@newdream.net> 2009-10-06 20:31:07 +02:00			`/*`
			`* Ceph 'frag' type`
			`*/`
ceph: factor out libceph from Ceph file system This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net> 2010-04-07 00:14:15 +02:00			`#include <linux/module.h>`
			`#include <linux/ceph/types.h>`
ceph: client types We first define constants, types, and prototypes for the kernel client proper. A few subsystems are defined separately later: the MDS, OSD, and monitor clients, and the messaging layer. Signed-off-by: Sage Weil <sage@newdream.net> 2009-10-06 20:31:07 +02:00
			`int ceph_frag_compare(__u32 a, __u32 b)`
			`{`
			`unsigned va = ceph_frag_value(a);`
			`unsigned vb = ceph_frag_value(b);`
			`if (va < vb)`
			`return -1;`
			`if (va > vb)`
			`return 1;`
			`va = ceph_frag_bits(a);`
			`vb = ceph_frag_bits(b);`
			`if (va < vb)`
			`return -1;`
			`if (va > vb)`
			`return 1;`
			`return 0;`
			`}`