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ceph: make lease code DN specific 

The lease code includes a mask in the CEPH_LOCK_* namespace, but that
namespace is changing, and only one mask (formerly _DN == 1) is used, so
hard code for that value for now.

If we ever extend this code to handle leases over different data types we
can extend it accordingly.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-05-25 16:45:25 -07:00
parent 7e34bc524e
commit dd1c905736
2 changed files with 13 additions and 12 deletions
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21
fs/ceph/ceph_fs.h
View File

@ -265,16 +265,17 @@ extern const char *ceph_mds_state_name(int s);
* - they also define the lock ordering by the MDS
* - a few of these are internal to the mds
*/
#define CEPH_LOCK_DN 1
#define CEPH_LOCK_ISNAP 2
#define CEPH_LOCK_IVERSION 4 /* mds internal */
#define CEPH_LOCK_IFILE 8 /* mds internal */
#define CEPH_LOCK_IAUTH 32
#define CEPH_LOCK_ILINK 64
#define CEPH_LOCK_IDFT 128 /* dir frag tree */
#define CEPH_LOCK_INEST 256 /* mds internal */
#define CEPH_LOCK_IXATTR 512
#define CEPH_LOCK_INO 2048 /* immutable inode bits; not a lock */
#define CEPH_LOCK_DVERSION 1
#define CEPH_LOCK_DN 2
#define CEPH_LOCK_ISNAP 16
#define CEPH_LOCK_IVERSION 32 /* mds internal */
#define CEPH_LOCK_IFILE 64
#define CEPH_LOCK_IAUTH 128
#define CEPH_LOCK_ILINK 256
#define CEPH_LOCK_IDFT 512 /* dir frag tree */
#define CEPH_LOCK_INEST 1024 /* mds internal */
#define CEPH_LOCK_IXATTR 2048
#define CEPH_LOCK_INO 8192 /* immutable inode bits; not a lock */
/* client_session ops */
enum {

4
fs/ceph/mds_client.c
View File

@ -2541,7 +2541,7 @@ void ceph_mdsc_lease_send_msg(struct ceph_mds_session *session,
return;
lease = msg->front.iov_base;
lease->action = action;
lease->mask = cpu_to_le16(CEPH_LOCK_DN);
lease->mask = cpu_to_le16(1);
lease->ino = cpu_to_le64(ceph_vino(inode).ino);
lease->first = lease->last = cpu_to_le64(ceph_vino(inode).snap);
lease->seq = cpu_to_le32(seq);
@ -2571,7 +2571,7 @@ void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc, struct inode *inode,
BUG_ON(inode == NULL);
BUG_ON(dentry == NULL);
BUG_ON(mask != CEPH_LOCK_DN);
BUG_ON(mask == 0);
/* is dentry lease valid? */
spin_lock(&dentry->d_lock);