diff options
Diffstat (limited to 'fs/gfs2/file.c')
| -rw-r--r-- | fs/gfs2/file.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index da742b470f23..13282f57da37 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -880,13 +880,40 @@ static ssize_t gfs2_file_buffered_write(struct kiocb *iocb, struct iov_iter *fro { struct file *file = iocb->ki_filp; struct inode *inode = file_inode(file); + struct gfs2_inode *ip = GFS2_I(inode); + struct gfs2_sbd *sdp = GFS2_SB(inode); ssize_t ret; + gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &ip->i_gh); + ret = gfs2_glock_nq(&ip->i_gh); + if (ret) + goto out_uninit; + + if (inode == sdp->sd_rindex) { + struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); + + ret = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, + GL_NOCACHE, &m_ip->i_gh); + if (ret) + goto out_unlock; + } + current->backing_dev_info = inode_to_bdi(inode); ret = iomap_file_buffered_write(iocb, from, &gfs2_iomap_ops); current->backing_dev_info = NULL; if (ret > 0) iocb->ki_pos += ret; + + if (inode == sdp->sd_rindex) { + struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode); + + gfs2_glock_dq_uninit(&m_ip->i_gh); + } + +out_unlock: + gfs2_glock_dq(&ip->i_gh); +out_uninit: + gfs2_holder_uninit(&ip->i_gh); return ret; } |