btrfs: Replace CURRENT_TIME by current_fs_time()

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

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: Chris Mason <clm@fb.com>
Cc: Josef Bacik <jbacik@fb.com>
Cc: linux-btrfs@vger.kernel.org
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

6 files changed, 26 insertions, 22 deletions

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 098bb8f690c9..610f56992464 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2544,7 +2544,7 @@ out_trans:
                 goto out_free;
 
         inode_inc_iversion(inode);
-        inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+        inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb);
 
         trans->block_rsv = &root->fs_info->trans_block_rsv;
         ret = btrfs_update_inode(trans, root, inode);
@@ -2794,7 +2794,7 @@ static long btrfs_fallocate(struct file *file, int mode,
                 if (IS_ERR(trans)) {
                         ret = PTR_ERR(trans);
                 } else {
-                        inode->i_ctime = CURRENT_TIME;
+                        inode->i_ctime = current_fs_time(inode->i_sb);
                         i_size_write(inode, actual_end);
                         btrfs_ordered_update_i_size(inode, actual_end, NULL);
                         ret = btrfs_update_inode(trans, root, inode);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5f06eb1f4384..cf0b3795364a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4013,7 +4013,8 @@ err:
         btrfs_i_size_write(dir, dir->i_size - name_len * 2);
         inode_inc_iversion(inode);
         inode_inc_iversion(dir);
-        inode->i_ctime = dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+        inode->i_ctime = dir->i_mtime =
+                dir->i_ctime = current_fs_time(inode->i_sb);
         ret = btrfs_update_inode(trans, root, dir);
 out:
         return ret;
@@ -4156,7 +4157,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
 
         btrfs_i_size_write(dir, dir->i_size - name_len * 2);
         inode_inc_iversion(dir);
-        dir->i_mtime = dir->i_ctime = CURRENT_TIME;
+        dir->i_mtime = dir->i_ctime = current_fs_time(dir->i_sb);
         ret = btrfs_update_inode_fallback(trans, root, dir);
         if (ret)
                 btrfs_abort_transaction(trans, root, ret);
@@ -5588,7 +5589,7 @@ static struct inode *new_simple_dir(struct super_block *s,
         inode->i_op = &btrfs_dir_ro_inode_operations;
         inode->i_fop = &simple_dir_operations;
         inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
-        inode->i_mtime = CURRENT_TIME;
+        inode->i_mtime = current_fs_time(inode->i_sb);
         inode->i_atime = inode->i_mtime;
         inode->i_ctime = inode->i_mtime;
         BTRFS_I(inode)->i_otime = inode->i_mtime;
@@ -6160,7 +6161,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
         inode_init_owner(inode, dir, mode);
         inode_set_bytes(inode, 0);
 
-        inode->i_mtime = CURRENT_TIME;
+        inode->i_mtime = current_fs_time(inode->i_sb);
         inode->i_atime = inode->i_mtime;
         inode->i_ctime = inode->i_mtime;
         BTRFS_I(inode)->i_otime = inode->i_mtime;
@@ -6273,7 +6274,8 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
         btrfs_i_size_write(parent_inode, parent_inode->i_size +
                            name_len * 2);
         inode_inc_iversion(parent_inode);
-        parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME;
+        parent_inode->i_mtime = parent_inode->i_ctime =
+                current_fs_time(parent_inode->i_sb);
         ret = btrfs_update_inode(trans, root, parent_inode);
         if (ret)
                 btrfs_abort_transaction(trans, root, ret);
@@ -6491,7 +6493,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
         BTRFS_I(inode)->dir_index = 0ULL;
         inc_nlink(inode);
         inode_inc_iversion(inode);
-        inode->i_ctime = CURRENT_TIME;
+        inode->i_ctime = current_fs_time(inode->i_sb);
         ihold(inode);
         set_bit(BTRFS_INODE_COPY_EVERYTHING, &BTRFS_I(inode)->runtime_flags);
 
@@ -9254,7 +9256,6 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         struct btrfs_root *dest = BTRFS_I(new_dir)->root;
         struct inode *new_inode = d_inode(new_dentry);
         struct inode *old_inode = d_inode(old_dentry);
-        struct timespec ctime = CURRENT_TIME;
         u64 index = 0;
         u64 root_objectid;
         int ret;
@@ -9351,9 +9352,9 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         inode_inc_iversion(old_dir);
         inode_inc_iversion(new_dir);
         inode_inc_iversion(old_inode);
-        old_dir->i_ctime = old_dir->i_mtime = ctime;
-        new_dir->i_ctime = new_dir->i_mtime = ctime;
-        old_inode->i_ctime = ctime;
+        old_dir->i_ctime = old_dir->i_mtime =
+        new_dir->i_ctime = new_dir->i_mtime =
+        old_inode->i_ctime = current_fs_time(old_dir->i_sb);
 
         if (old_dentry->d_parent != new_dentry->d_parent)
                 btrfs_record_unlink_dir(trans, old_dir, old_inode, 1);
@@ -9378,7 +9379,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 
         if (new_inode) {
                 inode_inc_iversion(new_inode);
-                new_inode->i_ctime = CURRENT_TIME;
+                new_inode->i_ctime = current_fs_time(new_inode->i_sb);
                 if (unlikely(btrfs_ino(new_inode) ==
                              BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
                         root_objectid = BTRFS_I(new_inode)->location.objectid;
@@ -9856,7 +9857,7 @@ next:
                 *alloc_hint = ins.objectid + ins.offset;
 
                 inode_inc_iversion(inode);
-                inode->i_ctime = CURRENT_TIME;
+                inode->i_ctime = current_fs_time(inode->i_sb);
                 BTRFS_I(inode)->flags |= BTRFS_INODE_PREALLOC;
                 if (!(mode & FALLOC_FL_KEEP_SIZE) &&
                     (actual_len > inode->i_size) &&
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index e65fdc8550b1..0cdcdf216a1b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -347,7 +347,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 
         btrfs_update_iflags(inode);
         inode_inc_iversion(inode);
-        inode->i_ctime = CURRENT_TIME;
+        inode->i_ctime = current_fs_time(inode->i_sb);
         ret = btrfs_update_inode(trans, root, inode);
 
         btrfs_end_transaction(trans, root);
@@ -443,7 +443,7 @@ static noinline int create_subvol(struct inode *dir,
         struct btrfs_root *root = BTRFS_I(dir)->root;
         struct btrfs_root *new_root;
         struct btrfs_block_rsv block_rsv;
-        struct timespec cur_time = CURRENT_TIME;
+        struct timespec cur_time = current_fs_time(dir->i_sb);
         struct inode *inode;
         int ret;
         int err;
@@ -3144,7 +3144,7 @@ static int clone_finish_inode_update(struct btrfs_trans_handle *trans,
 
         inode_inc_iversion(inode);
         if (!no_time_update)
-                inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+                inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb);
         /*
          * We round up to the block size at eof when determining which
          * extents to clone above, but shouldn't round up the file size.
@@ -4952,7 +4952,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
         struct btrfs_root *root = BTRFS_I(inode)->root;
         struct btrfs_root_item *root_item = &root->root_item;
         struct btrfs_trans_handle *trans;
-        struct timespec ct = CURRENT_TIME;
+        struct timespec ct = current_fs_time(inode->i_sb);
         int ret = 0;
         int received_uuid_changed;
 
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 7cf8509deda7..a25f3b21491b 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -488,7 +488,7 @@ void btrfs_update_root_times(struct btrfs_trans_handle *trans,
                              struct btrfs_root *root)
 {
         struct btrfs_root_item *item = &root->root_item;
-        struct timespec ct = CURRENT_TIME;
+        struct timespec ct = current_fs_time(root->fs_info->sb);
 
         spin_lock(&root->root_item_lock);
         btrfs_set_root_ctransid(item, trans->transid);
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index b6031ce474f7..37562d614abc 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1333,7 +1333,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
         struct dentry *dentry;
         struct extent_buffer *tmp;
         struct extent_buffer *old;
-        struct timespec cur_time = CURRENT_TIME;
+        struct timespec cur_time;
         int ret = 0;
         u64 to_reserve = 0;
         u64 index = 0;
@@ -1381,6 +1381,8 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
         parent_root = BTRFS_I(parent_inode)->root;
         record_root_in_trans(trans, parent_root);
 
+        cur_time = current_fs_time(parent_inode->i_sb);
+
         /*
          * insert the directory item
          */
@@ -1523,7 +1525,8 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
 
         btrfs_i_size_write(parent_inode, parent_inode->i_size +
                                          dentry->d_name.len * 2);
-        parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME;
+        parent_inode->i_mtime = parent_inode->i_ctime =
+                current_fs_time(parent_inode->i_sb);
         ret = btrfs_update_inode_fallback(trans, parent_root, parent_inode);
         if (ret) {
                 btrfs_abort_transaction(trans, root, ret);
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 6c68d6356197..f2a20d52b9db 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -249,7 +249,7 @@ int __btrfs_setxattr(struct btrfs_trans_handle *trans,
                 goto out;
 
         inode_inc_iversion(inode);
-        inode->i_ctime = CURRENT_TIME;
+        inode->i_ctime = current_fs_time(inode->i_sb);
         set_bit(BTRFS_INODE_COPY_EVERYTHING, &BTRFS_I(inode)->runtime_flags);
         ret = btrfs_update_inode(trans, root, inode);
         BUG_ON(ret);