X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=fs%2Focfs2%2Ffile.c;h=ac6c96431bbcb3a7687b522465e456d68246c002;hb=ff80a77f20f811c0cc5b251d0f657cbc6f788385;hp=9395b4fa547df54a5dcce659d779ac718377b053;hpb=4f7a307dc6e4d8bfeb56f7cf7231b08cb845687c;p=cascardo%2Flinux.git

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 9395b4fa547d..ac6c96431bbc 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -326,6 +326,7 @@ static int ocfs2_truncate_file(struct inode *inode,
 		   (unsigned long long)OCFS2_I(inode)->ip_blkno,
 		   (unsigned long long)new_i_size);
 
+	unmap_mapping_range(inode->i_mapping, new_i_size + PAGE_SIZE - 1, 0, 1);
 	truncate_inode_pages(inode->i_mapping, new_i_size);
 
 	fe = (struct ocfs2_dinode *) di_bh->b_data;
@@ -1418,36 +1419,6 @@ out:
 	return total ? total : ret;
 }
 
-static int ocfs2_check_iovec(const struct iovec *iov, size_t *counted,
-			     unsigned long *nr_segs)
-{
-	size_t ocount;		/* original count */
-	unsigned long seg;
-
-	ocount = 0;
-	for (seg = 0; seg < *nr_segs; seg++) {
-		const struct iovec *iv = &iov[seg];
-
-		/*
-		 * If any segment has a negative length, or the cumulative
-		 * length ever wraps negative then return -EINVAL.
-		 */
-		ocount += iv->iov_len;
-		if (unlikely((ssize_t)(ocount|iv->iov_len) < 0))
-			return -EINVAL;
-		if (access_ok(VERIFY_READ, iv->iov_base, iv->iov_len))
-			continue;
-		if (seg == 0)
-			return -EFAULT;
-		*nr_segs = seg;
-		ocount -= iv->iov_len;	/* This segment is no good */
-		break;
-	}
-
-	*counted = ocount;
-	return 0;
-}
-
 static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
 				    const struct iovec *iov,
 				    unsigned long nr_segs,
@@ -1470,7 +1441,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb,
 	if (iocb->ki_left == 0)
 		return 0;
 
-	ret = ocfs2_check_iovec(iov, &ocount, &nr_segs);
+	ret = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ);
 	if (ret)
 		return ret;