Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> --- fs/ext4/inode.c | 17 +++++++++++++++-- fs/ext4/super.c | 2 +- 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index e0bbcf7a07b5..37840aeb7ff9 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4235,6 +4235,19 @@ static int ext4_inode_blocks_set(struct ext4_inode *raw_inode, return 0; } +static void ext4_inode_set_ctime(struct inode *inode, struct ext4_inode *raw_inode) +{ + struct timespec64 ctime = ctime_peek(inode); + + if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), i_ctime_extra)) { + raw_inode->i_ctime = cpu_to_le32(ctime.tv_sec); + raw_inode->i_ctime_extra = ext4_encode_extra_time(&ctime); + } else { + raw_inode->i_ctime = cpu_to_le32(clamp_t(int32_t, + ctime.tv_sec, S32_MIN, S32_MAX)); + } +} + static int ext4_fill_raw_inode(struct inode *inode, struct ext4_inode *raw_inode) { struct ext4_inode_info *ei = EXT4_I(inode); @@ -4275,7 +4288,7 @@ static int ext4_fill_raw_inode(struct inode *inode, struct ext4_inode *raw_inode } raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); - EXT4_INODE_SET_XTIME(i_ctime, inode, raw_inode); + ext4_inode_set_ctime(inode, raw_inode); EXT4_INODE_SET_XTIME(i_mtime, inode, raw_inode); EXT4_INODE_SET_XTIME(i_atime, inode, raw_inode); EXT4_EINODE_SET_XTIME(i_crtime, ei, raw_inode); @@ -4983,7 +4996,7 @@ static void __ext4_update_other_inode_time(struct super_block *sb, spin_unlock(&inode->i_lock); spin_lock(&ei->i_raw_lock); - EXT4_INODE_SET_XTIME(i_ctime, inode, raw_inode); + ext4_inode_set_ctime(inode, raw_inode); EXT4_INODE_SET_XTIME(i_mtime, inode, raw_inode); EXT4_INODE_SET_XTIME(i_atime, inode, raw_inode); ext4_inode_csum_set(inode, raw_inode, ei); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9680fe753e59..4de4977dcb21 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -7258,7 +7258,7 @@ static struct file_system_type ext4_fs_type = { .init_fs_context = ext4_init_fs_context, .parameters = ext4_param_specs, .kill_sb = kill_block_super, - .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, + .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP | FS_MULTIGRAIN_TS, }; MODULE_ALIAS_FS("ext4"); -- 2.40.1