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>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 28f4f4cbb8d8..b831d7662005 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -631,7 +631,7 @@ int f2fs_truncate(struct inode *inode)
 	if (err)
 		return err;
 
-	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	inode->i_mtime = inode->i_ctime = current_time(inode);
 	f2fs_mark_inode_dirty_sync(inode);
 	return 0;
 }
@@ -708,7 +708,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 				if (err)
 					return err;
 			}
-			inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+			inode->i_mtime = inode->i_ctime = current_time(inode);
 		}
 	}
 
@@ -1395,7 +1395,7 @@ static long f2fs_fallocate(struct file *file, int mode,
 	}
 
 	if (!ret) {
-		inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+		inode->i_mtime = inode->i_ctime = current_time(inode);
 		f2fs_mark_inode_dirty_sync(inode);
 		f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	}
@@ -1487,7 +1487,7 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
 	fi->i_flags = flags;
 	inode_unlock(inode);
 
-	inode->i_ctime = CURRENT_TIME;
+	inode->i_ctime = current_time(inode);
 	f2fs_set_inode_flags(inode);
 out:
 	mnt_drop_write_file(filp);