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-rw-r--r--fs/ufs/balloc.c4
-rw-r--r--fs/ufs/ialloc.c2
-rw-r--r--fs/ufs/super.c4
-rw-r--r--fs/ufs/util.h14
4 files changed, 19 insertions, 5 deletions
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index e727ee07dbe4..075d3d9114c8 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -547,7 +547,7 @@ static u64 ufs_add_fragments(struct inode *inode, u64 fragment,
/*
* Block can be extended
*/
- ucg->cg_time = cpu_to_fs32(sb, get_seconds());
+ ucg->cg_time = ufs_get_seconds(sb);
for (i = newcount; i < (uspi->s_fpb - fragoff); i++)
if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i))
break;
@@ -639,7 +639,7 @@ cg_found:
if (!ufs_cg_chkmagic(sb, ucg))
ufs_panic (sb, "ufs_alloc_fragments",
"internal error, bad magic number on cg %u", cgno);
- ucg->cg_time = cpu_to_fs32(sb, get_seconds());
+ ucg->cg_time = ufs_get_seconds(sb);
if (count == uspi->s_fpb) {
result = ufs_alloccg_block (inode, ucpi, goal, err);
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index 02c0a4be4212..969fd60436d3 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -89,7 +89,7 @@ void ufs_free_inode (struct inode * inode)
if (!ufs_cg_chkmagic(sb, ucg))
ufs_panic (sb, "ufs_free_fragments", "internal error, bad cg magic number");
- ucg->cg_time = cpu_to_fs32(sb, get_seconds());
+ ucg->cg_time = ufs_get_seconds(sb);
is_directory = S_ISDIR(inode->i_mode);
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 488088141451..a4e07e910f1b 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -698,7 +698,7 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
usb1 = ubh_get_usb_first(uspi);
usb3 = ubh_get_usb_third(uspi);
- usb1->fs_time = cpu_to_fs32(sb, get_seconds());
+ usb1->fs_time = ufs_get_seconds(sb);
if ((flags & UFS_ST_MASK) == UFS_ST_SUN ||
(flags & UFS_ST_MASK) == UFS_ST_SUNOS ||
(flags & UFS_ST_MASK) == UFS_ST_SUNx86)
@@ -1342,7 +1342,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
*/
if (*mount_flags & SB_RDONLY) {
ufs_put_super_internal(sb);
- usb1->fs_time = cpu_to_fs32(sb, get_seconds());
+ usb1->fs_time = ufs_get_seconds(sb);
if ((flags & UFS_ST_MASK) == UFS_ST_SUN
|| (flags & UFS_ST_MASK) == UFS_ST_SUNOS
|| (flags & UFS_ST_MASK) == UFS_ST_SUNx86)
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index 1907be6d5808..1fd3011ea623 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -590,3 +590,17 @@ static inline int ufs_is_data_ptr_zero(struct ufs_sb_private_info *uspi,
else
return *(__fs32 *)p == 0;
}
+
+static inline __fs32 ufs_get_seconds(struct super_block *sbp)
+{
+ time64_t now = ktime_get_real_seconds();
+
+ /* Signed 32-bit interpretation wraps around in 2038, which
+ * happens in ufs1 inode stamps but not ufs2 using 64-bits
+ * stamps. For superblock and blockgroup, let's assume
+ * unsigned 32-bit stamps, which are good until y2106.
+ * Wrap around rather than clamp here to make the dirty
+ * file system detection work in the superblock stamp.
+ */
+ return cpu_to_fs32(sbp, lower_32_bits(now));
+}