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>

6 files changed, 16 insertions, 16 deletions

diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 21fa92b..4c1a6b5 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -81,7 +81,7 @@ static int __jfs_set_acl(tid_t tid, struct inode *inode, int type,
 			rc = posix_acl_equiv_mode(acl, &inode->i_mode);
 			if (rc < 0)
 				return rc;
-			inode->i_ctime = CURRENT_TIME;
+			inode->i_ctime = current_time(inode);
 			mark_inode_dirty(inode);
 			if (rc == 0)
 				acl = NULL;
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index ad3e7b1..054cc76 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -403,7 +403,7 @@ void jfs_truncate_nolock(struct inode *ip, loff_t length)
 			break;
 		}
 
-		ip->i_mtime = ip->i_ctime = CURRENT_TIME;
+		ip->i_mtime = ip->i_ctime = current_time(ip);
 		mark_inode_dirty(ip);
 
 		txCommit(tid, 1, &ip, 0);
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 5e33cb9..375dd25 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -131,7 +131,7 @@ struct inode *ialloc(struct inode *parent, umode_t mode)
 	jfs_inode->mode2 |= inode->i_mode;
 
 	inode->i_blocks = 0;
-	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
 	jfs_inode->otime = inode->i_ctime.tv_sec;
 	inode->i_generation = JFS_SBI(sb)->gengen++;
 
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 814b0c5..b05d0b4 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -162,7 +162,7 @@ static int jfs_create(struct inode *dip, struct dentry *dentry, umode_t mode,
 
 	mark_inode_dirty(ip);
 
-	dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	dip->i_ctime = dip->i_mtime = current_time(dip);
 
 	mark_inode_dirty(dip);
 
@@ -298,7 +298,7 @@ static int jfs_mkdir(struct inode *dip, struct dentry *dentry, umode_t mode)
 
 	/* update parent directory inode */
 	inc_nlink(dip);		/* for '..' from child directory */
-	dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	dip->i_ctime = dip->i_mtime = current_time(dip);
 	mark_inode_dirty(dip);
 
 	rc = txCommit(tid, 2, &iplist[0], 0);
@@ -406,7 +406,7 @@ static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
 	/* update parent directory's link count corresponding
 	 * to ".." entry of the target directory deleted
 	 */
-	dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	dip->i_ctime = dip->i_mtime = current_time(dip);
 	inode_dec_link_count(dip);
 
 	/*
@@ -528,7 +528,7 @@ static int jfs_unlink(struct inode *dip, struct dentry *dentry)
 
 	ASSERT(ip->i_nlink);
 
-	ip->i_ctime = dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	ip->i_ctime = dip->i_ctime = dip->i_mtime = current_time(ip);
 	mark_inode_dirty(dip);
 
 	/* update target's inode */
@@ -838,8 +838,8 @@ static int jfs_link(struct dentry *old_dentry,
 
 	/* update object inode */
 	inc_nlink(ip);		/* for new link */
-	ip->i_ctime = CURRENT_TIME;
-	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	ip->i_ctime = current_time(ip);
+	dir->i_ctime = dir->i_mtime = current_time(dir);
 	mark_inode_dirty(dir);
 	ihold(ip);
 
@@ -1039,7 +1039,7 @@ static int jfs_symlink(struct inode *dip, struct dentry *dentry,
 
 	mark_inode_dirty(ip);
 
-	dip->i_ctime = dip->i_mtime = CURRENT_TIME;
+	dip->i_ctime = dip->i_mtime = current_time(dip);
 	mark_inode_dirty(dip);
 	/*
 	 * commit update of parent directory and link object
@@ -1215,7 +1215,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			tblk->xflag |= COMMIT_DELETE;
 			tblk->u.ip = new_ip;
 		} else {
-			new_ip->i_ctime = CURRENT_TIME;
+			new_ip->i_ctime = current_time(new_ip);
 			mark_inode_dirty(new_ip);
 		}
 	} else {
@@ -1278,7 +1278,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	/*
 	 * Update ctime on changed/moved inodes & mark dirty
 	 */
-	old_ip->i_ctime = CURRENT_TIME;
+	old_ip->i_ctime = current_time(old_ip);
 	mark_inode_dirty(old_ip);
 
 	new_dir->i_ctime = new_dir->i_mtime = current_fs_time(new_dir->i_sb);
@@ -1293,7 +1293,7 @@ static int jfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 	if (old_dir != new_dir) {
 		iplist[ipcount++] = new_dir;
-		old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
+		old_dir->i_ctime = old_dir->i_mtime = current_time(old_dir);
 		mark_inode_dirty(old_dir);
 	}
 
@@ -1426,7 +1426,7 @@ static int jfs_mknod(struct inode *dir, struct dentry *dentry,
 
 	mark_inode_dirty(ip);
 
-	dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+	dir->i_ctime = dir->i_mtime = current_time(dir);
 
 	mark_inode_dirty(dir);
 
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index cec8814..85671f7 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -830,7 +830,7 @@ out:
 	if (inode->i_size < off+len-towrite)
 		i_size_write(inode, off+len-towrite);
 	inode->i_version++;
-	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	inode->i_mtime = inode->i_ctime = current_time(inode);
 	mark_inode_dirty(inode);
 	inode_unlock(inode);
 	return len - towrite;
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 0bf3c33..c60f3d3 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -658,7 +658,7 @@ static int ea_put(tid_t tid, struct inode *inode, struct ea_buffer *ea_buf,
 	if (old_blocks)
 		dquot_free_block(inode, old_blocks);
 
-	inode->i_ctime = CURRENT_TIME;
+	inode->i_ctime = current_time(inode);
 
 	return 0;
 }