xfs: kill xfs_itruncate_start

xfs_itruncate_start is a rather length wrapper that evaluates to a call
to xfs_ioend_wait and xfs_tosspages, and only has two callers.

Instead of using the complicated checks left over from IRIX where we
can to truncate the pagecache just call xfs_tosspages
(aka truncate_inode_pages) directly as we want to get rid of all data
after i_size, and truncate_inode_pages handles incorrect alignments
and too large offsets just fine.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

1 files changed, 0 insertions, 34 deletions

diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h
index d48b7a579ae1..cac41e423451 100644
--- a/fs/xfs/linux-2.6/xfs_trace.h
+++ b/fs/xfs/linux-2.6/xfs_trace.h
@@ -1029,40 +1029,6 @@ DEFINE_SIMPLE_IO_EVENT(xfs_delalloc_enospc);
 DEFINE_SIMPLE_IO_EVENT(xfs_unwritten_convert);
 DEFINE_SIMPLE_IO_EVENT(xfs_get_blocks_notfound);
 
-
-TRACE_EVENT(xfs_itruncate_start,
-        TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size, int flag,
-                 xfs_off_t toss_start, xfs_off_t toss_finish),
-        TP_ARGS(ip, new_size, flag, toss_start, toss_finish),
-        TP_STRUCT__entry(
-                __field(dev_t, dev)
-                __field(xfs_ino_t, ino)
-                __field(xfs_fsize_t, size)
-                __field(xfs_fsize_t, new_size)
-                __field(xfs_off_t, toss_start)
-                __field(xfs_off_t, toss_finish)
-                __field(int, flag)
-        ),
-        TP_fast_assign(
-                __entry->dev = VFS_I(ip)->i_sb->s_dev;
-                __entry->ino = ip->i_ino;
-                __entry->size = ip->i_d.di_size;
-                __entry->new_size = new_size;
-                __entry->toss_start = toss_start;
-                __entry->toss_finish = toss_finish;
-                __entry->flag = flag;
-        ),
-        TP_printk("dev %d:%d ino 0x%llx %s size 0x%llx new_size 0x%llx "
-                  "toss start 0x%llx toss finish 0x%llx",
-                  MAJOR(__entry->dev), MINOR(__entry->dev),
-                  __entry->ino,
-                  __print_flags(__entry->flag, "|", XFS_ITRUNC_FLAGS),
-                  __entry->size,
-                  __entry->new_size,
-                  __entry->toss_start,
-                  __entry->toss_finish)
-);
-
 DECLARE_EVENT_CLASS(xfs_itrunc_class,
         TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size),
         TP_ARGS(ip, new_size),