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>

4 files changed, 8 insertions, 8 deletions

diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c
index 9568064ecadf..a284dd8689a8 100644
--- a/fs/logfs/dir.c
+++ b/fs/logfs/dir.c
@@ -226,7 +226,7 @@ static int logfs_unlink(struct inode *dir, struct dentry *dentry)
 	ta->state = UNLINK_1;
 	ta->ino = inode->i_ino;
 
-	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(inode);
 
 	page = logfs_get_dd_page(dir, dentry);
 	if (!page) {
@@ -540,7 +540,7 @@ static int logfs_link(struct dentry *old_dentry, struct inode *dir,
 {
 	struct inode *inode = d_inode(old_dentry);
 
-	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(inode);
 	ihold(inode);
 	inc_nlink(inode);
 	mark_inode_dirty_sync(inode);
@@ -573,7 +573,7 @@ static int logfs_delete_dd(struct inode *dir, loff_t pos)
 	 * (crc-protected) journal.
 	 */
 	BUG_ON(beyond_eof(dir, pos));
-	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	dir->i_ctime = dir->i_mtime = current_time(dir);
 	log_dir(" Delete dentry (%lx, %llx)\n", dir->i_ino, pos);
 	return logfs_delete(dir, pos, NULL);
 }
diff --git a/fs/logfs/file.c b/fs/logfs/file.c
index f01ddfb1a03b..dae4f312ffba 100644
--- a/fs/logfs/file.c
+++ b/fs/logfs/file.c
@@ -211,7 +211,7 @@ long logfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		li->li_flags = flags;
 		inode_unlock(inode);
 
-		inode->i_ctime = CURRENT_TIME;
+		inode->i_ctime = current_time(inode);
 		mark_inode_dirty_sync(inode);
 		return 0;
 
diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index db9cfc598883..f440a1525da8 100644
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -213,8 +213,8 @@ static void logfs_init_inode(struct super_block *sb, struct inode *inode)
 	i_gid_write(inode, 0);
 	inode->i_size	= 0;
 	inode->i_blocks	= 0;
-	inode->i_ctime	= CURRENT_TIME;
-	inode->i_mtime	= CURRENT_TIME;
+	inode->i_ctime	= current_time(inode);
+	inode->i_mtime	= current_time(inode);
 	li->li_refcount = 1;
 	INIT_LIST_HEAD(&li->li_freeing_list);
 
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 3fb8c6d67303..bf19bf4a243f 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -1546,7 +1546,7 @@ static int __logfs_write_buf(struct inode *inode, struct page *page, long flags)
 	int err;
 
 	flags |= WF_WRITE | WF_DELETE;
-	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	inode->i_ctime = inode->i_mtime = current_time(inode);
 
 	logfs_unpack_index(index, &bix, &level);
 	if (logfs_block(page) && logfs_block(page)->reserved_bytes)
@@ -1578,7 +1578,7 @@ static int __logfs_delete(struct inode *inode, struct page *page)
 	long flags = WF_DELETE;
 	int err;
 
-	inode->i_ctime = inode->i_mtime = CURRENT_TIME;
+	inode->i_ctime = inode->i_mtime = current_time(inode);
 
 	if (page->index < I0_BLOCKS)
 		return logfs_write_direct(inode, page, flags);