diff options
Diffstat (limited to 'fs/ceph/ioctl.c')
| -rw-r--r-- | fs/ceph/ioctl.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c index d085f07756b4..76e307d2aba1 100644 --- a/fs/ceph/ioctl.c +++ b/fs/ceph/ioctl.c @@ -143,6 +143,27 @@ static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg) return 0; } +static long ceph_ioctl_lazyio(struct file *file) +{ + struct ceph_file_info *fi = file->private_data; + struct inode *inode = file->f_dentry->d_inode; + struct ceph_inode_info *ci = ceph_inode(inode); + + if ((fi->fmode & CEPH_FILE_MODE_LAZY) == 0) { + spin_lock(&inode->i_lock); + ci->i_nr_by_mode[fi->fmode]--; + fi->fmode |= CEPH_FILE_MODE_LAZY; + ci->i_nr_by_mode[fi->fmode]++; + spin_unlock(&inode->i_lock); + dout("ioctl_layzio: file %p marked lazy\n", file); + + ceph_check_caps(ci, 0, NULL); + } else { + dout("ioctl_layzio: file %p already lazy\n", file); + } + return 0; +} + long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { dout("ioctl file %p cmd %u arg %lu\n", file, cmd, arg); @@ -155,6 +176,9 @@ long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case CEPH_IOC_GET_DATALOC: return ceph_ioctl_get_dataloc(file, (void __user *)arg); + + case CEPH_IOC_LAZYIO: + return ceph_ioctl_lazyio(file); } return -ENOTTY; } |