diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ceph/locks.c | 58 |
1 files changed, 21 insertions, 37 deletions
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c index 40abde93c345..7b7ac310f052 100644 --- a/fs/ceph/locks.c +++ b/fs/ceph/locks.c @@ -11,40 +11,49 @@ * Implement fcntl and flock locking functions. */ static int ceph_lock_message(u8 lock_type, u16 operation, struct file *file, - u64 pid, u64 pid_ns, - int cmd, u64 start, u64 length, u8 wait) + int cmd, u8 wait, struct file_lock *fl) { struct inode *inode = file->f_dentry->d_inode; struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc; struct ceph_mds_request *req; int err; + u64 length = 0; req = ceph_mdsc_create_request(mdsc, operation, USE_AUTH_MDS); if (IS_ERR(req)) return PTR_ERR(req); req->r_inode = igrab(inode); + /* mds requires start and length rather than start and end */ + if (LLONG_MAX == fl->fl_end) + length = 0; + else + length = fl->fl_end - fl->fl_start + 1; + dout("ceph_lock_message: rule: %d, op: %d, pid: %llu, start: %llu, " "length: %llu, wait: %d, type`: %d", (int)lock_type, - (int)operation, pid, start, length, wait, cmd); + (int)operation, (u64)fl->fl_pid, fl->fl_start, + length, wait, fl->fl_type); + req->r_args.filelock_change.rule = lock_type; req->r_args.filelock_change.type = cmd; - req->r_args.filelock_change.pid = cpu_to_le64(pid); + req->r_args.filelock_change.pid = cpu_to_le64((u64)fl->fl_pid); /* This should be adjusted, but I'm not sure if namespaces actually get id numbers*/ req->r_args.filelock_change.pid_namespace = - cpu_to_le64((u64)pid_ns); - req->r_args.filelock_change.start = cpu_to_le64(start); + cpu_to_le64((u64)(unsigned long)fl->fl_nspid); + req->r_args.filelock_change.start = cpu_to_le64(fl->fl_start); req->r_args.filelock_change.length = cpu_to_le64(length); req->r_args.filelock_change.wait = wait; err = ceph_mdsc_do_request(mdsc, inode, req); ceph_mdsc_put_request(req); dout("ceph_lock_message: rule: %d, op: %d, pid: %llu, start: %llu, " - "length: %llu, wait: %d, type`: %d err code %d", (int)lock_type, - (int)operation, pid, start, length, wait, cmd, err); + "length: %llu, wait: %d, type`: %d, err code %d", (int)lock_type, + (int)operation, (u64)fl->fl_pid, fl->fl_start, + length, wait, fl->fl_type, err); return err; } @@ -54,7 +63,6 @@ static int ceph_lock_message(u8 lock_type, u16 operation, struct file *file, */ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) { - u64 length; u8 lock_cmd; int err; u8 wait = 0; @@ -76,16 +84,7 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) else lock_cmd = CEPH_LOCK_UNLOCK; - if (LLONG_MAX == fl->fl_end) - length = 0; - else - length = fl->fl_end - fl->fl_start + 1; - - err = ceph_lock_message(CEPH_LOCK_FCNTL, op, file, - (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - lock_cmd, fl->fl_start, - length, wait); + err = ceph_lock_message(CEPH_LOCK_FCNTL, op, file, lock_cmd, wait, fl); if (!err) { dout("mds locked, locking locally"); err = posix_lock_file(file, fl, NULL); @@ -93,10 +92,7 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) /* undo! This should only happen if the kernel detects * local deadlock. */ ceph_lock_message(CEPH_LOCK_FCNTL, op, file, - (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - CEPH_LOCK_UNLOCK, fl->fl_start, - length, 0); + CEPH_LOCK_UNLOCK, 0, fl); dout("got %d on posix_lock_file, undid lock", err); } } else { @@ -107,7 +103,6 @@ int ceph_lock(struct file *file, int cmd, struct file_lock *fl) int ceph_flock(struct file *file, int cmd, struct file_lock *fl) { - u64 length; u8 lock_cmd; int err; u8 wait = 1; @@ -127,26 +122,15 @@ int ceph_flock(struct file *file, int cmd, struct file_lock *fl) lock_cmd = CEPH_LOCK_EXCL; else lock_cmd = CEPH_LOCK_UNLOCK; - /* mds requires start and length rather than start and end */ - if (LLONG_MAX == fl->fl_end) - length = 0; - else - length = fl->fl_end - fl->fl_start + 1; err = ceph_lock_message(CEPH_LOCK_FLOCK, CEPH_MDS_OP_SETFILELOCK, - file, (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - lock_cmd, fl->fl_start, - length, wait); + file, lock_cmd, wait, fl); if (!err) { err = flock_lock_file_wait(file, fl); if (err) { ceph_lock_message(CEPH_LOCK_FLOCK, CEPH_MDS_OP_SETFILELOCK, - file, (u64)fl->fl_pid, - (u64)(unsigned long)fl->fl_nspid, - CEPH_LOCK_UNLOCK, fl->fl_start, - length, 0); + file, CEPH_LOCK_UNLOCK, 0, fl); dout("got %d on flock_lock_file_wait, undid lock", err); } } else { |