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>
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index a4f56a4..45b8ac6 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -197,13 +197,6 @@
*/
tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
- /*
- * Do the xfs_itruncate_start() call before
- * reserving any log space because
- * itruncate_start will call into the buffer
- * cache and we can't
- * do that within a transaction.
- */
if (flags & XFS_FREE_EOF_TRYLOCK) {
if (!xfs_ilock_nowait(ip, XFS_IOLOCK_EXCL)) {
xfs_trans_cancel(tp, 0);
@@ -212,13 +205,6 @@
} else {
xfs_ilock(ip, XFS_IOLOCK_EXCL);
}
- error = xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE,
- ip->i_size);
- if (error) {
- xfs_trans_cancel(tp, 0);
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return error;
- }
error = xfs_trans_reserve(tp, 0,
XFS_ITRUNCATE_LOG_RES(mp),
@@ -660,20 +646,9 @@
tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
if (truncate) {
- /*
- * Do the xfs_itruncate_start() call before
- * reserving any log space because itruncate_start
- * will call into the buffer cache and we can't
- * do that within a transaction.
- */
xfs_ilock(ip, XFS_IOLOCK_EXCL);
- error = xfs_itruncate_start(ip, XFS_ITRUNC_DEFINITE, 0);
- if (error) {
- xfs_trans_cancel(tp, 0);
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- return VN_INACTIVE_CACHE;
- }
+ xfs_ioend_wait(ip);
error = xfs_trans_reserve(tp, 0,
XFS_ITRUNCATE_LOG_RES(mp),