diff options
| -rw-r--r-- | fs/xfs/xfs_aops.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 42017ecf78ed..a6abb7125203 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -420,26 +420,6 @@ xfs_map_blocks( xfs_iunlock(ip, XFS_ILOCK_SHARED); wpc->fork = XFS_COW_FORK; - - /* - * Truncate can race with writeback since writeback doesn't - * take the iolock and truncate decreases the file size before - * it starts truncating the pages between new_size and old_size. - * Therefore, we can end up in the situation where writeback - * gets a CoW fork mapping but the truncate makes the mapping - * invalid and we end up in here trying to get a new mapping. - * bail out here so that we simply never get a valid mapping - * and so we drop the write altogether. The page truncation - * will kill the contents anyway. - */ - if (offset > i_size_read(inode)) { - wpc->imap.br_blockcount = end_fsb - offset_fsb; - wpc->imap.br_startoff = offset_fsb; - wpc->imap.br_startblock = HOLESTARTBLOCK; - wpc->imap.br_state = XFS_EXT_NORM; - return 0; - } - goto allocate_blocks; } |