diff options
Diffstat (limited to 'fs/ocfs2/file.c')
| -rw-r--r-- | fs/ocfs2/file.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 5d384a6cd696..38fc33922832 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2271,6 +2271,8 @@ static ssize_t ocfs2_file_write_iter(struct kiocb *iocb, OCFS2_MOUNT_COHERENCY_BUFFERED); int unaligned_dio = 0; int dropped_dio = 0; + int append_write = ((iocb->ki_pos + count) >= + i_size_read(inode) ? 1 : 0); trace_ocfs2_file_aio_write(inode, file, file->f_path.dentry, (unsigned long long)OCFS2_I(inode)->ip_blkno, @@ -2290,8 +2292,9 @@ relock: /* * Concurrent O_DIRECT writes are allowed with * mount_option "coherency=buffered". + * For append write, we must take rw EX. */ - rw_level = (!direct_io || full_coherency); + rw_level = (!direct_io || full_coherency || append_write); ret = ocfs2_rw_lock(inode, rw_level); if (ret < 0) { |