f2fs: detect idle time depending on user behavior

This patch adds last time that user requested filesystem operations.
This information is used to detect whether system is idle or not later.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index ff06827aa369..3d43857e9892 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -96,6 +96,7 @@ mapped:
 	clear_cold_data(page);
 out:
 	sb_end_pagefault(inode->i_sb);
+	f2fs_update_time(sbi, REQ_TIME);
 	return block_page_mkwrite_return(err);
 }
 
@@ -280,6 +281,7 @@ flush_out:
 	remove_ino_entry(sbi, ino, UPDATE_INO);
 	clear_inode_flag(fi, FI_UPDATE_WRITE);
 	ret = f2fs_issue_flush(sbi);
+	f2fs_update_time(sbi, REQ_TIME);
 out:
 	trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
 	f2fs_trace_ios(NULL, 1);
@@ -485,6 +487,7 @@ int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 	}
 	dn->ofs_in_node = ofs;
 
+	f2fs_update_time(sbi, REQ_TIME);
 	trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
 					 dn->ofs_in_node, nr_free);
 	return nr_free;
@@ -1236,6 +1239,7 @@ static long f2fs_fallocate(struct file *file, int mode,
 	if (!ret) {
 		inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 		mark_inode_dirty(inode);
+		f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	}
 
 out:
@@ -1351,6 +1355,8 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 		return ret;
 
 	set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+
 	return 0;
 }
 
@@ -1398,6 +1404,7 @@ static int f2fs_ioc_start_volatile_write(struct file *filp)
 		return ret;
 
 	set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	return 0;
 }
 
@@ -1439,6 +1446,7 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp)
 	}
 
 	mnt_drop_write_file(filp);
+	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	return ret;
 }
 
@@ -1478,6 +1486,7 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
 	default:
 		return -EINVAL;
 	}
+	f2fs_update_time(sbi, REQ_TIME);
 	return 0;
 }
 
@@ -1508,6 +1517,7 @@ static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
 	if (copy_to_user((struct fstrim_range __user *)arg, &range,
 				sizeof(range)))
 		return -EFAULT;
+	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	return 0;
 }
 
@@ -1531,6 +1541,7 @@ static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
 				sizeof(policy)))
 		return -EFAULT;
 
+	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	return f2fs_process_policy(&policy, inode);
 #else
 	return -EOPNOTSUPP;
@@ -1807,6 +1818,7 @@ static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
 	}
 
 	err = f2fs_defragment_range(sbi, filp, &range);
+	f2fs_update_time(sbi, REQ_TIME);
 	if (err < 0)
 		goto out;