1 files changed, 4 insertions, 0 deletions

diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index a7106eda5024..fb8b54eb77c5 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -417,7 +417,9 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
         if (oldcount == 0) {
                 result = ufs_alloc_fragments (inode, cgno, goal, count, err);
                 if (result) {
+                        write_seqlock(&UFS_I(inode)->meta_lock);
                         ufs_cpu_to_data_ptr(sb, p, result);
+                        write_sequnlock(&UFS_I(inode)->meta_lock);
                         *err = 0;
                         UFS_I(inode)->i_lastfrag =
                                 max(UFS_I(inode)->i_lastfrag, fragment + count);
@@ -473,7 +475,9 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
                 ufs_change_blocknr(inode, fragment - oldcount, oldcount,
                                    uspi->s_sbbase + tmp,
                                    uspi->s_sbbase + result, locked_page);
+                write_seqlock(&UFS_I(inode)->meta_lock);
                 ufs_cpu_to_data_ptr(sb, p, result);
+                write_sequnlock(&UFS_I(inode)->meta_lock);
                 *err = 0;
                 UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
                                                 fragment + count);