diff options
| author | Greg Farnum <gregf@hq.newdream.net> | 2010-08-02 15:34:23 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-08-02 16:10:53 -0700 |
| commit | 40819f6fb227c1832935b775ac22aef10aa6f6dd (patch) | |
| tree | 14f3e73f9585cc157ab2daab487c7b3964394fe2 /fs/ceph/super.h | |
| parent | fbaad9797a761c2d5ff6e755bbb4c046207a1ca2 (diff) | |
ceph: add flock/fcntl lock support
Implement flock inode operation to support advisory file locking. All
lock/unlock operations are synchronous with the MDS. Lock state is
sent when reconnecting to a recovering MDS to restore the shared lock
state.
Signed-off-by: Greg Farnum <gregf@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 83f7cc5fab1..95adce441cc 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -892,6 +892,14 @@ extern void ceph_debugfs_cleanup(void); extern int ceph_debugfs_client_init(struct ceph_client *client); extern void ceph_debugfs_client_cleanup(struct ceph_client *client); +/* locks.c */ +extern int ceph_lock(struct file *file, int cmd, struct file_lock *fl); +extern int ceph_flock(struct file *file, int cmd, struct file_lock *fl); +extern void ceph_count_locks(struct inode *inode, int *p_num, int *f_num); +extern int ceph_encode_locks(struct inode *i, struct ceph_pagelist *p, + int p_locks, int f_locks); +extern int lock_to_ceph_filelock(struct file_lock *fl, struct ceph_filelock *c); + static inline struct inode *get_dentry_parent_inode(struct dentry *dentry) { if (dentry && dentry->d_parent) |