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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/nilfs2/ioctl.c
..
..
@@ -70,7 +70,7 @@
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 	if (argv->v_index > ~(__u64)0 - argv->v_nmembs)
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 		return -EINVAL;
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-	buf = (void *)__get_free_pages(GFP_NOFS, 0);
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+	buf = (void *)get_zeroed_page(GFP_NOFS);
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 	if (unlikely(!buf))
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 		return -ENOMEM;
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 	maxmembs = PAGE_SIZE / argv->v_size;
..
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@@ -148,13 +148,8 @@
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 	oldflags = NILFS_I(inode)->i_flags;
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-	/*
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-	 * The IMMUTABLE and APPEND_ONLY flags can only be changed by the
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-	 * relevant capability.
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-	 */
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-	ret = -EPERM;
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-	if (((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) &&
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-	    !capable(CAP_LINUX_IMMUTABLE))
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+	ret = vfs_ioc_setflags_prepare(inode, oldflags, flags);
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+	if (ret)
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 		goto out;
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 	ret = nilfs_transaction_begin(inode->i_sb, &ti, 0);
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@@ -574,25 +569,25 @@
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 	if (unlikely(ret < 0)) {
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 		if (ret == -ENOENT)
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-			nilfs_msg(inode->i_sb, KERN_CRIT,
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-				  "%s: invalid virtual block address (%s): ino=%llu, cno=%llu, offset=%llu, blocknr=%llu, vblocknr=%llu",
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-				  __func__, vdesc->vd_flags ? "node" : "data",
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-				  (unsigned long long)vdesc->vd_ino,
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-				  (unsigned long long)vdesc->vd_cno,
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-				  (unsigned long long)vdesc->vd_offset,
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-				  (unsigned long long)vdesc->vd_blocknr,
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-				  (unsigned long long)vdesc->vd_vblocknr);
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+			nilfs_crit(inode->i_sb,
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+				   "%s: invalid virtual block address (%s): ino=%llu, cno=%llu, offset=%llu, blocknr=%llu, vblocknr=%llu",
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+				   __func__, vdesc->vd_flags ? "node" : "data",
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+				   (unsigned long long)vdesc->vd_ino,
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+				   (unsigned long long)vdesc->vd_cno,
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+				   (unsigned long long)vdesc->vd_offset,
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+				   (unsigned long long)vdesc->vd_blocknr,
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+				   (unsigned long long)vdesc->vd_vblocknr);
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 		return ret;
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 	}
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 	if (unlikely(!list_empty(&bh->b_assoc_buffers))) {
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-		nilfs_msg(inode->i_sb, KERN_CRIT,
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-			  "%s: conflicting %s buffer: ino=%llu, cno=%llu, offset=%llu, blocknr=%llu, vblocknr=%llu",
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-			  __func__, vdesc->vd_flags ? "node" : "data",
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-			  (unsigned long long)vdesc->vd_ino,
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-			  (unsigned long long)vdesc->vd_cno,
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-			  (unsigned long long)vdesc->vd_offset,
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-			  (unsigned long long)vdesc->vd_blocknr,
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-			  (unsigned long long)vdesc->vd_vblocknr);
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+		nilfs_crit(inode->i_sb,
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+			   "%s: conflicting %s buffer: ino=%llu, cno=%llu, offset=%llu, blocknr=%llu, vblocknr=%llu",
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+			   __func__, vdesc->vd_flags ? "node" : "data",
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+			   (unsigned long long)vdesc->vd_ino,
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+			   (unsigned long long)vdesc->vd_cno,
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+			   (unsigned long long)vdesc->vd_offset,
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+			   (unsigned long long)vdesc->vd_blocknr,
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+			   (unsigned long long)vdesc->vd_vblocknr);
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 		brelse(bh);
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 		return -EEXIST;
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 	}
..
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@@ -842,8 +837,7 @@
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 	return 0;
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  failed:
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-	nilfs_msg(nilfs->ns_sb, KERN_ERR, "error %d preparing GC: %s", ret,
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-		  msg);
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+	nilfs_err(nilfs->ns_sb, "error %d preparing GC: %s", ret, msg);
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 	return ret;
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 }
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..
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@@ -952,7 +946,7 @@
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946
 
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 	ret = nilfs_ioctl_move_blocks(inode->i_sb, &argv[0], kbufs[0]);
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 	if (ret < 0) {
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-		nilfs_msg(inode->i_sb, KERN_ERR,
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+		nilfs_err(inode->i_sb,
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 			  "error %d preparing GC: cannot read source blocks",
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 			  ret);
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 	} else {
..
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@@ -1135,7 +1129,14 @@
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 	minseg = range[0] + segbytes - 1;
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 	do_div(minseg, segbytes);
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+
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+	if (range[1] < 4096)
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+		goto out;
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+
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 	maxseg = NILFS_SB2_OFFSET_BYTES(range[1]);
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+	if (maxseg < segbytes)
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+		goto out;
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+
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 	do_div(maxseg, segbytes);
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 	maxseg--;
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..
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@@ -1359,6 +1360,7 @@
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 	case NILFS_IOCTL_SYNC:
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 	case NILFS_IOCTL_RESIZE:
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 	case NILFS_IOCTL_SET_ALLOC_RANGE:
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+	case FITRIM:
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 		break;
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 	default:
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 		return -ENOIOCTLCMD;