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>

5 files changed, 5 insertions, 5 deletions

diff --git a/fs/proc/base.c b/fs/proc/base.c
index ac0df4d..029161d 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1664,7 +1664,7 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
 	/* Common stuff */
 	ei = PROC_I(inode);
 	inode->i_ino = get_next_ino();
-	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
 	inode->i_op = &proc_def_inode_operations;
 
 	/*
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index ce1f1a9..e69ebe6 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -420,7 +420,7 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
 
 	if (inode) {
 		inode->i_ino = de->low_ino;
-		inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+		inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
 		PROC_I(inode)->pde = de;
 
 		if (is_empty_pde(de)) {
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 1b93650..f9e2f7a 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -444,7 +444,7 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
 	ei->sysctl = head;
 	ei->sysctl_entry = table;
 
-	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
 	inode->i_mode = table->mode;
 	if (!S_ISDIR(table->mode)) {
 		inode->i_mode |= S_IFREG;
diff --git a/fs/proc/self.c b/fs/proc/self.c
index b6a8d35..4024595 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -56,7 +56,7 @@ int proc_setup_self(struct super_block *s)
 		struct inode *inode = new_inode_pseudo(s);
 		if (inode) {
 			inode->i_ino = self_inum;
-			inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+			inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
 			inode->i_mode = S_IFLNK | S_IRWXUGO;
 			inode->i_uid = GLOBAL_ROOT_UID;
 			inode->i_gid = GLOBAL_ROOT_GID;
diff --git a/fs/proc/thread_self.c b/fs/proc/thread_self.c
index e58a31e..595b90a97 100644
--- a/fs/proc/thread_self.c
+++ b/fs/proc/thread_self.c
@@ -58,7 +58,7 @@ int proc_setup_thread_self(struct super_block *s)
 		struct inode *inode = new_inode_pseudo(s);
 		if (inode) {
 			inode->i_ino = thread_self_inum;
-			inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+			inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
 			inode->i_mode = S_IFLNK | S_IRWXUGO;
 			inode->i_uid = GLOBAL_ROOT_UID;
 			inode->i_gid = GLOBAL_ROOT_GID;