From: Long Li <leo.lilong@huawei.com>
Date: Tue, 17 Mar 2026 01:51:52 +0000 (+0800)
Subject: xfs: only assert new size for datafork during truncate extents
X-Git-Tag: v7.0-rc6~33^2~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e942498385bf80f4d6d075b47174035545eb6a2e;p=thirdparty%2Fkernel%2Flinux.git

xfs: only assert new size for datafork during truncate extents

The assertion functions properly because we currently only truncate the
attr to a zero size. Any other new size of the attr is not preempted.
Make this assertion is specific to the datafork, preparing for
subsequent patches to truncate the attribute to a non-zero size.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Long Li <leo.lilong@huawei.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
---

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 50c0404f9064..beaa26ec62da 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1048,7 +1048,8 @@ xfs_itruncate_extents_flags(
 	xfs_assert_ilocked(ip, XFS_ILOCK_EXCL);
 	if (icount_read(VFS_I(ip)))
 		xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL);
-	ASSERT(new_size <= XFS_ISIZE(ip));
+	if (whichfork == XFS_DATA_FORK)
+		ASSERT(new_size <= XFS_ISIZE(ip));
 	ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
 	ASSERT(ip->i_itemp != NULL);
 	ASSERT(ip->i_itemp->ili_lock_flags == 0);