commit 6d94c74ab85fe70dc1ac29b1ffc55cf23b3cf3f9
author Jaegeuk Kim <jaegeuk@kernel.org> Fri May 20 21:47:24 2016 -0700
committer Jaegeuk Kim <jaegeuk@kernel.org> Thu Jun 02 18:05:14 2016 -0700
tree 44c74111b0a5d60254053b3469a9c9c9f85af642
parent 26de9b11713057a16a9220423a2f137774763b0e

f2fs: add lazytime mount option

This patch adds lazytime support.

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

fs/f2fs/super.c

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 6fa4ec8..14c3473 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -93,6 +93,8 @@
 	Opt_noinline_data,
 	Opt_data_flush,
 	Opt_fault_injection,
+	Opt_lazytime,
+	Opt_nolazytime,
 	Opt_err,
 };
 
@@ -119,6 +121,8 @@
 	{Opt_noinline_data, "noinline_data"},
 	{Opt_data_flush, "data_flush"},
 	{Opt_fault_injection, "fault_injection=%u"},
+	{Opt_lazytime, "lazytime"},
+	{Opt_nolazytime, "nolazytime"},
 	{Opt_err, NULL},
 };
 
@@ -506,6 +510,12 @@
 				"FAULT_INJECTION was not selected");
 #endif
 			break;
+		case Opt_lazytime:
+			sb->s_flags |= MS_LAZYTIME;
+			break;
+		case Opt_nolazytime:
+			sb->s_flags &= ~MS_LAZYTIME;
+			break;
 		default:
 			f2fs_msg(sb, KERN_ERR,
 				"Unrecognized mount option \"%s\" or missing value",
@@ -613,6 +623,9 @@
 			inode->i_ino == F2FS_META_INO(sbi))
 		return;
 
+	if (flags == I_DIRTY_TIME)
+		return;
+
 	if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
 		clear_inode_flag(inode, FI_AUTO_RECOVER);
 
@@ -932,6 +945,7 @@
 	set_opt(sbi, BG_GC);
 	set_opt(sbi, INLINE_DATA);
 	set_opt(sbi, EXTENT_CACHE);
+	sbi->sb->s_flags |= MS_LAZYTIME;
 
 #ifdef CONFIG_F2FS_FS_XATTR
 	set_opt(sbi, XATTR_USER);