diff options
| -rw-r--r-- | fs/ocfs2/file.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 20fffeed..a9559c8 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1168,6 +1168,22 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, ocfs2_iocb_set_rw_locked(iocb); } + /* + * We're fine letting folks race truncates and extending + * writes with read across the cluster, just like they can + * locally. Hence no rw_lock during read. + * + * Take and drop the meta data lock to update inode fields + * like i_size. This allows the checks down below + * generic_file_aio_read() a chance of actually working. + */ + ret = ocfs2_meta_lock(inode, NULL, NULL, 0); + if (ret < 0) { + mlog_errno(ret); + goto bail; + } + ocfs2_meta_unlock(inode, 0); + ret = generic_file_aio_read(iocb, buf, count, iocb->ki_pos); if (ret == -EINVAL) mlog(ML_ERROR, "generic_file_aio_read returned -EINVAL\n"); |
