fs: Replace CURRENT_TIME with current_time() for inode timestamps

CURRENT_TIME macro is not appropriate for filesystems as it
doesn't use the right granularity for filesystem timestamps.
Use current_time() instead.

CURRENT_TIME is also not y2038 safe.

This is also in preparation for the patch that transitions
vfs timestamps to use 64 bit time and hence make them
y2038 safe. As part of the effort current_time() will be
extended to do range checks. Hence, it is necessary for all
file system timestamps to use current_time(). Also,
current_time() will be transitioned along with vfs to be
y2038 safe.

Note that whenever a single call to current_time() is used
to change timestamps in different inodes, it is because they
share the same time granularity.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 files changed, 22 insertions, 22 deletions

diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index 2162434..acf0012 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -201,7 +201,7 @@ static int ocfs2_acl_set_mode(struct inode *inode, struct buffer_head *di_bh,
 	}
 
 	inode->i_mode = new_mode;
-	inode->i_ctime = CURRENT_TIME;
+	inode->i_ctime = current_time(inode);
 	di->i_mode = cpu_to_le16(inode->i_mode);
 	di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
 	di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 7dabbc3..498e711 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -7311,7 +7311,7 @@ int ocfs2_truncate_inline(struct inode *inode, struct buffer_head *di_bh,
 	}
 
 	inode->i_blocks = ocfs2_inode_sector_count(inode);
-	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	inode->i_ctime = inode->i_mtime = current_time(inode);
 
 	di->i_ctime = di->i_mtime = cpu_to_le64(inode->i_ctime.tv_sec);
 	di->i_ctime_nsec = di->i_mtime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 98d3654..3a22be4 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -2020,7 +2020,7 @@ out_write_size:
 		}
 		inode->i_blocks = ocfs2_inode_sector_count(inode);
 		di->i_size = cpu_to_le64((u64)i_size_read(inode));
-		inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		inode->i_mtime = inode->i_ctime = current_time(inode);
 		di->i_mtime = di->i_ctime = cpu_to_le64(inode->i_mtime.tv_sec);
 		di->i_mtime_nsec = di->i_ctime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
 		ocfs2_update_inode_fsync_trans(handle, inode, 1);
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index e1adf28..e7054e2 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -1677,7 +1677,7 @@ int __ocfs2_add_entry(handle_t *handle,
 				offset, ocfs2_dir_trailer_blk_off(dir->i_sb));
 
 		if (ocfs2_dirent_would_fit(de, rec_len)) {
-			dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+			dir->i_mtime = dir->i_ctime = current_time(dir);
 			retval = ocfs2_mark_inode_dirty(handle, dir, parent_fe_bh);
 			if (retval < 0) {
 				mlog_errno(retval);
@@ -2990,7 +2990,7 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
 	ocfs2_dinode_new_extent_list(dir, di);
 
 	i_size_write(dir, sb->s_blocksize);
-	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+	dir->i_mtime = dir->i_ctime = current_time(dir);
 
 	di->i_size = cpu_to_le64(sb->s_blocksize);
 	di->i_ctime = di->i_mtime = cpu_to_le64(dir->i_ctime.tv_sec);
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index ef474cd..f0d9763 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -398,7 +398,7 @@ static struct inode *dlmfs_get_root_inode(struct super_block *sb)
 	if (inode) {
 		inode->i_ino = get_next_ino();
 		inode_init_owner(inode, NULL, mode);
-		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
 		inc_nlink(inode);
 
 		inode->i_fop = &simple_dir_operations;
@@ -421,7 +421,7 @@ static struct inode *dlmfs_get_inode(struct inode *parent,
 
 	inode->i_ino = get_next_ino();
 	inode_init_owner(inode, parent, mode);
-	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
 
 	ip = DLMFS_I(inode);
 	ip->ip_conn = DLMFS_I(parent)->ip_conn;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 4e7b0dc..9adcac9 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -253,7 +253,7 @@ int ocfs2_should_update_atime(struct inode *inode,
 		return 0;
 	}
 
-	now = CURRENT_TIME;
+	now = current_time(inode);
 	if ((now.tv_sec - inode->i_atime.tv_sec <= osb->s_atime_quantum))
 		return 0;
 	else
@@ -287,7 +287,7 @@ int ocfs2_update_inode_atime(struct inode *inode,
 	 * have i_mutex to guard against concurrent changes to other
 	 * inode fields.
 	 */
-	inode->i_atime = CURRENT_TIME;
+	inode->i_atime = current_time(inode);
 	di->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
 	di->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
 	ocfs2_update_inode_fsync_trans(handle, inode, 0);
@@ -308,7 +308,7 @@ int ocfs2_set_inode_size(handle_t *handle,
 
 	i_size_write(inode, new_i_size);
 	inode->i_blocks = ocfs2_inode_sector_count(inode);
-	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	inode->i_ctime = inode->i_mtime = current_time(inode);
 
 	status = ocfs2_mark_inode_dirty(handle, inode, fe_bh);
 	if (status < 0) {
@@ -429,7 +429,7 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb,
 	}
 
 	i_size_write(inode, new_i_size);
-	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	inode->i_ctime = inode->i_mtime = current_time(inode);
 
 	di = (struct ocfs2_dinode *) fe_bh->b_data;
 	di->i_size = cpu_to_le64(new_i_size);
@@ -840,7 +840,7 @@ static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from,
 	i_size_write(inode, abs_to);
 	inode->i_blocks = ocfs2_inode_sector_count(inode);
 	di->i_size = cpu_to_le64((u64)i_size_read(inode));
-	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	inode->i_mtime = inode->i_ctime = current_time(inode);
 	di->i_mtime = di->i_ctime = cpu_to_le64(inode->i_mtime.tv_sec);
 	di->i_ctime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
 	di->i_mtime_nsec = di->i_ctime_nsec;
@@ -1936,7 +1936,7 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode,
 	if (change_size && i_size_read(inode) < size)
 		i_size_write(inode, size);
 
-	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	inode->i_ctime = inode->i_mtime = current_time(inode);
 	ret = ocfs2_mark_inode_dirty(handle, inode, di_bh);
 	if (ret < 0)
 		mlog_errno(ret);
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index e3d05d9..4e8f32eb 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -953,7 +953,7 @@ static int ocfs2_move_extents(struct ocfs2_move_extents_context *context)
 	}
 
 	di = (struct ocfs2_dinode *)di_bh->b_data;
-	inode->i_ctime = CURRENT_TIME;
+	inode->i_ctime = current_time(inode);
 	di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
 	di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
 	ocfs2_update_inode_fsync_trans(handle, inode, 0);
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index a8f1225..e2747d8 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -798,7 +798,7 @@ static int ocfs2_link(struct dentry *old_dentry,
 	}
 
 	inc_nlink(inode);
-	inode->i_ctime = CURRENT_TIME;
+	inode->i_ctime = current_time(inode);
 	ocfs2_set_links_count(fe, inode->i_nlink);
 	fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
 	fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
@@ -1000,7 +1000,7 @@ static int ocfs2_unlink(struct inode *dir,
 	ocfs2_set_links_count(fe, inode->i_nlink);
 	ocfs2_journal_dirty(handle, fe_bh);
 
-	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	dir->i_ctime = dir->i_mtime = current_time(dir);
 	if (S_ISDIR(inode->i_mode))
 		drop_nlink(dir);
 
@@ -1537,7 +1537,7 @@ static int ocfs2_rename(struct inode *old_dir,
 					 new_dir_bh, &target_insert);
 	}
 
-	old_inode->i_ctime = CURRENT_TIME;
+	old_inode->i_ctime = current_time(old_inode);
 	mark_inode_dirty(old_inode);
 
 	status = ocfs2_journal_access_di(handle, INODE_CACHE(old_inode),
@@ -1586,9 +1586,9 @@ static int ocfs2_rename(struct inode *old_dir,
 
 	if (new_inode) {
 		drop_nlink(new_inode);
-		new_inode->i_ctime = CURRENT_TIME;
+		new_inode->i_ctime = current_time(new_inode);
 	}
-	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+	old_dir->i_ctime = old_dir->i_mtime = current_time(old_dir);
 
 	if (update_dot_dot) {
 		status = ocfs2_update_entry(old_inode, handle,
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 92bbe93..1923851 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -3778,7 +3778,7 @@ static int ocfs2_change_ctime(struct inode *inode,
 		goto out_commit;
 	}
 
-	inode->i_ctime = CURRENT_TIME;
+	inode->i_ctime = current_time(inode);
 	di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
 	di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
 
@@ -4094,7 +4094,7 @@ static int ocfs2_complete_reflink(struct inode *s_inode,
 		 * we want mtime to appear identical to the source and
 		 * update ctime.
 		 */
-		t_inode->i_ctime = CURRENT_TIME;
+		t_inode->i_ctime = current_time(t_inode);
 
 		di->i_ctime = cpu_to_le64(t_inode->i_ctime.tv_sec);
 		di->i_ctime_nsec = cpu_to_le32(t_inode->i_ctime.tv_nsec);
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 5bb44f7..cb157a3 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -3431,7 +3431,7 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
 			goto out;
 		}
 
-		inode->i_ctime = CURRENT_TIME;
+		inode->i_ctime = current_time(inode);
 		di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
 		di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
 		ocfs2_journal_dirty(ctxt->handle, xis->inode_bh);